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Firebird Boilers Reviews: Best Firebird Combi Prices for 2024

Firebird boilers are a distinguished oil boiler brand serving the UK, Ireland, and Europe. Firebird boilers are produced by Firebird Heating Solutions Ltd., a company that has its headquarters in Baile Mhic Íre, County Cork, Ireland. Firebird was established in 1980 and has grown significantly over the decades, carving out a reputation for innovation and quality in the oil boiler market. Firebird are known for their vast array of oil boiler models and their suitability for a range of budgets.

Firebird boilers
Firebird oil boilers offer a wide choice of models to suit any budget

Three key advantages set Firebird boilers apart in the market. Firstly, Firebird boilers are highly energy-efficient, with models operating at over 90% efficiency levels. This high-efficiency rating means that they use less fuel to generate the necessary heat, leading to significant energy conservation and cost savings for users. Secondly, Firebird boilers are designed with environmental considerations in mind. These oil boilers emit relatively low levels of nitrogen oxides (NOx) and other pollutants, thus contributing to better air quality and a healthier environment. Thirdly, durability is a hallmark of Firebird boilers. These boilers have a lifespan of approximately 15 years, subject to annual servicing by a certified OFTEC technician.

However, one notable drawback of Firebird boilers is their relatively short warranty terms. Oil boiler warranties tend to be shorter than those of gas boilers, but Firebird’s standard 2-year warranty terms still lag behind industry leaders.

Firebird boiler prices vary between £1,100 and £4,700, excluding installation costs. This price range reflects the diversity in Firebird’s boiler lineup, which accommodates different household sizes and heating requirements.

Below is an in-depth guide to Firebird boiler ranges, prices, pros, cons, potential problems, internal parts, and alternative brands.

What is the price range for Firebird boilers?

The price range of Firebird boilers is between £1,100 and £4,700, excluding installation. The prices of Firebird boilers vary depending on the three factors listed below.

  • Boiler type: The price of a Firebird boiler somewhat differs depending on whether the boiler is a combi, system, or regular (heat-only) type. Firebird combi boilers are generally the most expensive, ranging between £2,200 and £3,500. The higher costs are due to the combis’ dual functionality, which entails having more components under the casing. Meanwhile, Firebird regular boilers are the least expensive, ranging between £1,100 and £2,100, since they have fewer internal components. One exception is the Envirogreen Popular external model, which may cost as much as £4,700 due to its high heating output of up to 100kW. Firebird system boilers are mid-range, costing between £1,600 and £2,700 without installation.
  • Boiler model: Some models may cost more or less than others within each Firebird boiler type. For example, the Envirogreen Slimline Combi models are at the higher end, whilst the Envirolite Boilerhouse models are at the lower end of the price range. This difference in pricing between models stems from their features and heating capacity. Typically, feature-heavy, user-friendly models tend to cost more, as do boilers capable of producing a higher kW heating output.
  • Installation costs: The installation costs are separate from the boiler prices and typically range from £1,500 to £6,000 for oil boilers. These costs tend to be higher for external models due to the additional work required for outdoor setup.

The price ranges of Firebird boilers are further illustrated in the infographic below.

Firebird boilers prices
Firebird boilers’ price ranges for combi, system, and regular boiler models

The table below provides a summary of ratings our HeatingForce team prepared for Firebird boilers, based on the manufacturer’s price, performance, design, customer service, safety, and warranty lengths.

Firebird Boiler Specs Rating 4.4/5
Price and performance efficiency 5/5
Design 5/5
Customer service 4/5
Safety 5/5
Warranty duration 3/5

How do Firebird boilers work?

Firebird boilers work by combusting heating oil, and then transferring the resulting heat to water that circulates through a home’s radiators, and separately to the Domestic Hot Water (DHW). However, the functionality of Firebird boilers differs based on the boiler type. Firebird combis heat water directly from the mains on demand and deliver it to taps (and separately to the radiators), eliminating the need for a separate hot water cylinder or cold water storage tank. Meanwhile, Firebird system boilers heat water for the home’s radiators, and this water indirectly heats the domestic water inside a separate insulated cylinder. System boilers incorporate many of the components required for the heating system within the boiler itself. Finally, heat-only boilers from Firebird work in conjunction with a separate hot water storage cylinder and cold water tank, with the latter typically located in the loft. Heat-only boilers provide hot water to radiators and the cylinder, which then releases domestic hot water to taps as required.

Below is an overview describing how Firebird boilers’ most essential components facilitate their operation, regardless of boiler type.

  • Thermostat and controls: Firebird boilers are equipped with thermostats and control systems that allow users to set the desired temperature for their home. Setting the desired temperature above the current indoor temperature activates the boiler, which responds by heating water and circulating it to the home’s radiators. Home dwellers may use their thermostats to program their boilers’ operation as needed for different times of the day or week.
  • Burner: The burner is the heart of an oil boiler, where oil mixes with air and ignites to produce a flame as soon as the boiler receives the command to begin heating. Firebird boilers use advanced burners that create a fine mist of oil, thus allowing for more complete and efficient combustion.
  • Heat exchanger: The heat from the burner flame transfers to the water within the boiler’s heat exchanger. The heat exchanger comprises a series of pipes or coils (depending on the model) through which the water circulates, absorbing the heat.
  • Condensing technology: Firebird boilers are ‘condensing boilers,’ so they have a secondary heat exchanger designed to extract more heat from the exhaust gases before they escape outside. Condensing technology recovers energy that would otherwise be lost, thus allowing the boiler to consume less fuel while operating. Condensate produced during this process is acidic, and requires adequate collection and disposal to the outdoors, usually via a condensate trap and pipe.
  • Pump: A pump circulates heated water through the system of pipes and radiators, then back to the boiler’s heat exchanger, where the cycle restarts. In system and regular boilers, this heating water passes through a coil inside the DHW cylinder, thus indirectly raising the temperature of the home’s tap water.
  • Flue: The flue provides a path outdoors for toxic exhaust gases produced by the burning oil. Firebird’s flue systems are designed to minimise heat loss and ensure the boiler’s safe operation.
  • Safety systems: Firebird boilers come with a variety of safety systems, such as pressure relief valves, thermostats, and automatic shut-off mechanisms. These safety devices prevent overheating or other potential hazards.

What are the types of Firebird boilers?

There are three different Firebird boiler types: combi, system, and regular. Each boiler type is tailored to different household requirements, considering factors such as space, hot water demand, and existing heating system configuration.

  • Firebird combi boilers: Firebird’s range of combi boilers is designed to supply both central heating and hot water on demand without the need for additional hot water storage tanks. This boiler type is well-suited for smaller households with moderate hot water needs. Firebird’s internal combi lineup includes the Envirogreen Slimline Combi and the Envirogreen Combi HE, which are priced between £2,200 and £2,500. The Envirogreen Combipac HE and the Slimline Combipac are the external variants. The latter cost a bit more, ranging from £2,200 to £3,500, due to their robust build and outdoor suitability. Firebird combi boilers have a warranty length of 2 years across all models.
  • Firebird system boilers: System boilers are designed to work with a separate hot water cylinder but do not require cold water storage tanks. This configuration makes system boilers a good choice for homes with higher hot water demands, as they provide hot water and central heating simultaneously. Additionally, these boilers are appealing to those who have a hot water cylinder already installed. Firebird boilers of this type are typically more affordable than their combi counterparts but likewise offer a 2-year warranty. The system boiler range includes the internal Envirogreen System and the external Systempac and Slimline Systempac, which are priced between £1,600 and £2,700.
  • Firebird regular boilers: Regular boilers from Firebird require both a hot water cylinder and cold water storage tanks. Regular boilers are appropriate for households with a significant demand for hot water and homes that already have a conventional heating system in place. With prices spanning from £1,100 for the internal Envirolite Boilerhouse model to £4,700 for the high-capacity external Envirogreen Popular boiler, regular Firebird boilers cater to a wide budget range. Like their combi and system counterparts, these boilers come with a standard warranty of 2 years.
What is the Firebird combi boiler price range?

The table below overviews the Firebird combi boiler type price range.

Firebird Combi Boiler Models Heating kW Consumption Warranty Duration Boiler Price Range Installation Cost
Envirogreen Slimline Combi (internal) 12kW-35kW 2 years £2,200- £2,500 £1,500-£5,000
Envirogreen Combi HE (internal) 12kW-35kW 2 years £2,200- £2,500 £1,500-£5,000
Envirogreen Combipac HE (external) 12kW-35kW 2 years £2,200- £2,700 £1,800-£6,000
Envirogreen Slimline Combipac (external) 12kW-35kW 2 years £2,900- £3,500 £1,800-£6,000
What is the Firebird system boiler price range?

The Firebird system boiler type price range is summarised in the table below.

Firebird System Boiler Models Output kW Warranty Duration Boiler Price Range Installation Cost
Envirogreen System (internal) 12kW-44kW 2 years £1,600- £2,200 £1,500-£5,000
Envirogreen Systempac (external) 12kW-44kW 2 years £1,900- £2,700 £1,800-£6,000
Envirogreen Slimline Systempac (external) 12kW-35kW 2 years £1,900- £2,400 £1,800-£6,000
What is the Firebird regular boiler price range?

The table below outlines the Firebird regular boiler type price range.

Firebird Regular Boiler Models Output kW Warranty Duration Boiler Price Range Installation Cost
Envirogreen Heatpac (external) 12kW-73kW 2 years £1,600- £2,100 £1,800-£6,000
Envirogreen Popular (external) 12kW-100kW 2 years £2,600- £4,700 £1,800-£6,000
Envirogreen Slimline Heatpac (external) 12kW-35kW 2 years £1,600- £1,800 £1,800-£6,000
Envirogreen Kitchen (internal) 12kW-73kW 2 years £1,300- £1,800 £1,500-£5,000
Envirolite Heatpac (external) 12kW-35kW 2 years £1,600- £1,800 £1,800-£6,000
Envirolite Boilerhouse (internal) 12kW-35kW 2 years £1,100- £1,400 £1,500-£5,000
Envirolite Utility (internal) 12kW-35kW 2 years £1,200- £1,700 £1,500-£5,000

Does the Firebird Boiler heat homes quickly?

How quickly a Firebird boiler heats homes hinges on two essential considerations. Firstly, the boiler’s capacity to rapidly elevate the ambient temperature directly relates to whether it’s proportionally sized for the home. A Firebird boiler that’s underpowered relative to the number of radiators and the spatial volume it’s intended to heat may not achieve the desired warmth at all, especially on a cold day. However, a properly sized Firebird should be capable of increasing the indoor air temperature by roughly 1°C per hour. The second factor is the setting of the flow water temperature, which is the temperature of the water exiting the boiler and circulating the heating system. To maintain a balance between rapid heating and efficiency, the flow water temperature is ideally maintained between 60°C and 70°C. Adjusting your Firebird boiler to a higher flow water temperature helps heat the home faster. However, doing so prevents the boiler from operating in its fuel-efficient condensing mode, thus leading to higher fuel consumption and increasing heating costs.

Is the Firebird boiler suitable for the United Kingdom’s winter conditions?

Yes, a Firebird boiler is suitable for the United Kingdom’s winter conditions for four compelling reasons. Firstly, Firebird boilers are engineered to deliver ample heat to elevate the home’s indoor air temperature (assuming the boiler is accurately sized for the residence). With typical central heating outputs of 15-35kW and up, Firebird boilers are more than capable of warming homes with 10-30 radiators during the coldest winter days. Secondly, Firebird boilers come with a built-in frost protection thermostat. This vital component prevents the water inside the boiler’s components from freezing when the system is inactive during bouts of extreme cold. The frost protection thermostat triggers the boiler and the pump to circulate water if the internal water temperature falls to 5°C, thus averting freezing and potential blockages. Thirdly, Firebird boilers’ high fuel efficiency protects users from the soaring energy costs typically associated with heating during typical UK winters. Firebird boilers’ energy efficiency exceeds 90% on average, meaning that over 90 pence of each pound spent on heating oil are effectively converted into heat. Lastly, Firebird boilers may be outfitted with an optional weather compensation probe, which modulates the boiler’s function in response to outdoor temperature changes. This intelligent feature enables the boiler to promptly ramp up heating in response to a sudden drop in outdoor temperatures on cold winter days.

Is the Firebird boiler popular in UK homes?

The popularity of Firebird boilers is difficult to quantify because annual installation figures of Firebird boilers in UK homes are not publicly available. However, Firebird’s popularity is likely high in regions off the gas grid for the two reasons below.

  • Customer and technician satisfaction: Customer testimonials and reviews often highlight satisfaction with Firebird’s products, thus indicating a loyal customer base. Heating engineers and technicians frequently recommend the brand, which is a testament to their trust in the product’s quality and the after-sales support provided by the company.
  • Industry recognition: Firebird’s partnerships and certifications reflect the brand’s recognition within the oil heating industry. As a member of the Oil Firing Technical Association (OFTEC), Firebird is part of an organisation that promotes the highest standards in oil heating.

Our expert panel at HeatingForce likewise gives Firebird oil boilers high marks. We find that the boilers’ performance, energy efficiency, design, and safety record meet and exceed industry standards, whilst the price is relatively low compared to equivalents by Worcester Bosch or Warmflow. Overall, Firebird oil boilers offer an energy-efficient, robust oil heating option for those whose homes don’t have the benefit of a mains gas connection.

What are the advantages of Firebird boilers?

Below are the four primary advantages of Firebird boilers.

  • Perform efficiently: Firebird boilers operate with high efficiency levels of 90% and up. Utilising less fuel to produce desired heat levels translates to energy conservation and cost savings for the boiler user.
  • Reduce emissions: Oil boilers from Firebird are engineered to emit lower levels of NOx and other pollutants, and thus contribute to a healthier environment with improved air quality.
  • Withstand time: Firebird boilers are renowned for their durability and have a relatively long lifespan of roughly 15 years, provided they get annual service by an OFTEC technician.
  • Facilitate control: The control systems on Firebird boilers are designed for user convenience, as they allow for straightforward adjustments and heating management.

How is the energy consumption of Firebird boilers?

The energy consumption of Firebird boilers is in line with that of competing oil boiler brands, ranging between 50GJ and 158GJ annually for heating oil. Meanwhile, the consumption of electricity on auxiliary processes ranges between 0W and 184W, depending on the model and operating mode. The table below provides a summary of the Firebird boilers’ consumption of electricity and energy produced through burning oil.

Firebird boiler model Electricity consumption per hour (full mode) Electricity consumption per hour (partial mode) Electricity consumption per hour (standby) Annual Energy Consumption (GJ)
Envirogreen Heatpac 12-18kW 187 W 57 W 3 W 56.60
Envirogreen Heatpac 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Heatpac 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Heatpac 26-35kW 165 W 55 W 0 W 108.90
Envirogreen Heatpac 36-44kW 160 W 55 W 0 W 135.00
Envirogreen Heatpac 58kW 166 W 567 W 0 W 158.00
Envirogreen Heatpac 73kW
Envirolite Heatpac 12-20kW 157 W 57 W 0 W 50
Envirolite Heatpac 20-26kW 157 W 57 W 0 W 72
Envirolite Heatpac 26-35kW 165 W 55 W 0 W 95
Envirogreen Popular 12-18kW 187 W 57 W 3 W 56.60
Envirogreen Popular 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Popular 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Popular 26-35kW 165 W 55 W 0 W 108.90
Envirogreen Popular 36-44kW 160 W 55 W 0 W 135.00
Envirogreen Popular 58kW 166 W 57 W 0 W 158.00
Envirolite Boilerhouse 12-20kW 157 W 57 W 0 W 50
Envirolite Boilerhouse 20-26kW 157 W 57 W 0 W 72
Envirolite Boilerhouse 26-35kW 165 W 55 W 0 W 95
Envirogreen Kitchen 12-18kW 187 W 57 W 3 W 56.60
Envirogreen Kitchen 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Kitchen 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Kitchen 26-35kW 165 W 55 W 0 W 108.90
Envirogreen Kitchen 36-44kW 160 W 55 W 0 W 135.00
Envirogreen Kitchen 58kW 166 W 57 W 0 W 158.00
Envirolite Utility 12-20kW 157 W 57 W 0 W 50
Envirolite Utility 20-26kW 157 W 57 W 0 W 72
Envirolite Utility 26-35kW 165 W 55 W 0 W 95
Envirogreen Slimline Combi 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Slimline Combi 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Slimline Heatpac 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Slimline Heatpac 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Slimline Heatpac 26-35kW 165 W 55 W 0 W 108.90
Envirogreen Combi HE 12-20kW 0.178 W 0.062 W 0 W 62.20
Envirogreen Combi HE 20-26kW 0.184 W 0.046 W 0 W 80.90
Envirogreen Combi HE 26-35kW 0.165 W 0.055 W 0 W 62.20
Envirogreen System 12-20kW 178 W 62 W 0 W 62.20
Envirogreen System 20-26kW 184 W 46 W 0 W 80.90
Envirogreen System 26-35kW 165 W 55 W 0 W 62.20
Envirogreen System 36-44kW 160 W 55 W 0 W 135.00
Envirogreen Combipac HE 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Combipac HE 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Combipac HE 26-35kW 165 W 55 W 0 W 62.20
Envirogreen Systempac 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Systempac 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Systempac 26-35kW 165 W 55 W 0 W 62.20
Envirogreen Systempac 36-44kW 160 W 55 W 0 W 135.00
Envirogreen Slimline Systempac 12-20kW 178 W 62 W 0 W 62.20
Envirogreen Slimline Systempac 20-26kW 184 W 46 W 0 W 80.90
Envirogreen Slimline Systempac 26-35kW 165 W 55 W 0 W 62.20

What are the factors that affect the energy consumption of Firebird boilers?

Below is a list of the eleven factors that affect the energy consumption of Firebird boilers.

  • Insulation quality: The thermal insulation of a property impacts how much energy the Firebird boiler must expend. Well-insulated homes block heat transfer effectively, thus reducing boiler workload and energy use.
  • Boiler size and power: An undersized boiler works harder and less efficiently, while an oversized boiler wastes energy. Therefore, accurately matching the boiler size to the home’s heating requirements is crucial.
  • Thermostat settings: Higher thermostat settings lead to increased energy consumption and costs. Meanwhile, finding the optimal temperature setting results in comfort without unnecessarily high energy consumption by the boiler.
  • External temperatures: Colder external conditions require more energy from the Firebird boiler to maintain internal temperatures. Consequently, the boiler generally burns more fuel on particularly chilly days.
  • Property size: Larger properties or those with open-plan designs often need more energy for heating. The volume of space to be heated directly correlates with the boiler’s energy usage.
  • Radiator performance: The efficiency of radiators and the heating system overall affect how hard the Firebird boiler needs to work to distribute heat evenly.
  • Maintenance and servicing: Regular maintenance ensures that the Firebird boiler’s components are in good working order and the boiler operates at peak efficiency. On the other hand, poorly maintained boilers consume more energy due to inefficiencies caused by worn-out parts.
  • User habits: The frequency and manner in which the heating is used by the occupants can greatly affect energy consumption. Constant adjustments and high heat demands can increase usage.
  • Heating controls and zones: The presence of advanced heating controls and the use of zoned heating areas can optimise energy use, reducing consumption by heating only the spaces in use.
  • Hot water usage: The amount of hot water used and the temperature it’s heated to impact the energy consumption of Firebird combi boilers.
  • Installation quality: Proper installation of the boiler and heating system ensures optimal energy performance. Conversely, an incorrectly installed Firebird boiler may operate below its design efficiency levels and thus consume more fuel than necessary.

What is the estimated lifespan for a Firebird boiler?

The estimated lifespan of a Firebird boiler is around 15 years. However, the duration for which a Firebird boiler remains operational hinges on the following two factors.

  • Model reliability: The reliability of different Firebird boiler models varies. Some models are more robust and are thereby more likely to operate without major faults throughout their expected lifespan. The warranty that comes with a Firebird boiler is a reliable forecast of the unit’s ability to run without major issues. For instance, boilers with extended warranties (such as Firebird’s Envirogreen range) tend to function well beyond a decade without significant issues if they receive annual service. Conversely, the 2-year guarantee associated with other Firebird models suggests a shorter fault-free operation period.
  • Routine maintenance: Diligent maintenance and routine servicing are crucial in prolonging the life of a Firebird boiler. Frequent service allows for the early detection and correction of small issues that could evolve into serious problems if left unresolved for long.

Note that the average lifespan of a Firebird boiler doesn’t guarantee uninterrupted operation, as wear-and-tear-related faults often arise before the boiler reaches the end of its life. Industry insights suggest that like with any brand, some Firebird boiler owners might encounter operational faults within the first several years of usage. These issues don’t always signal a breakdown or necessitate replacement, but simply mean that the 15-year lifespan doesn’t equate to a fault-free service life.

What are the disadvantages of Firebird Boilers?

Relatively short warranty terms are the one notable disadvantage of Firebird boilers. Oil boilers’ warranties are generally shorter than those of their gas counterparts. But even so, Firebird’s standard warranties fall short compared to industry leaders such as Worcester Bosch. Firebird boilers come with a 5-year warranty for the boiler shell and heat exchanger, but all other internal components are protected for 2 years. In contrast, Worcester Bosch provide comprehensive coverage with a 7-year guarantee on their oil boilers when installed by an accredited installer. This longer coverage period offers greater peace of mind and lower out-of-pocket repair expenses over the boiler’s lifetime.

Do Firebird boilers operate quietly?

Yes, Firebird boilers generally operate quietly, with decibel levels ranging between 45 dB and 52 dB. The list below puts the two figures into context and compares the noise generated by running Firebird boilers to other common sounds.

  • 45 dB: 45 decibels is a noise level that’s comparable to the sound of a quiet suburban area at night or a library. It is just above the level of a whisper, which is around 30 dB. A Firebird boiler operating at this level blends into the background noise of a typical home without causing any disturbance.
  • 52 dB: 52 decibels represent a noise level similar to that of a quiet office or a moderate rainfall. The noise level is slightly lower than the average conversation at home, which is around 60 dB. Boilers at this level are still considered quiet, especially when compared to other household appliances like a dishwasher (which generates around 60 dB) or a washing machine during the spin cycle (which results in around 70-75 dB).

Firebird employs high-quality insulation and acoustic techniques to suppress sound, ensuring that operational noise is kept to a minimum.

Do Firebird boilers vibrate while working?

Firebird boilers occasionally vibrate while working, as all mechanical heating systems do. However, unusual or inconsistent vibrations could signify the four issues below.

  • Faulty pump: A faulty boiler pump may start to operate incorrectly and cause vibrations if it gets blocked or suffers from wear and tear.
  • Debris accumulation: Accumulation of limescale and sludge within the boiler’s hydraulic block (which encompasses components like the diverter valve, heat exchanger, pump, pressure release valve, and bypass valve) can lead to vibrations. The vibrations result from blockages disrupting the smooth circulation of water and thus forcing the boiler to work harder.
  • Boiler fan issues: The boiler may begin to vibrate if the fan is worn out or loose. Excessive boiler vibration is often a telltale sign that the fan needs inspection or maintenance.
  • Shoddy installation: A Firebird boiler that has not been installed correctly may produce vibrations. If the boiler is not securely fitted within its mounting bracket, or if the bracket itself is not firmly attached to the wall, the boiler might vibrate during its operation.

We recommend that you consult with a qualified heating engineer to diagnose and fix any issues potentially causing the boiler to vibrate excessively.

Do Firebird boilers have any safety concerns?

No, Firebird boilers do not have any safety concerns. There are no widespread reported or documented safety issues pertaining to Firebird boilers.

Firebird boilers adhere to a range of safety standards that ensure their safe operation in residential settings, notably the two standards listed below.

  • BS EN 60335-1: 2012 + A2: 2019: This standard covers the general requirements for the safety of household and similar electrical appliances, ensuring that products are safe for domestic use.
  • BS EN 60335-2-102: 2006 + A2: 2016: This standard specifically relates to safety in gas, oil, and solid-fuel burning appliances that have electrical connections, and thus directly applies to the safe operation of Firebird oil boilers.

However, Firebird boilers carry inherent risks associated with the use of kerosene, as any fossil-fuel-fired boiler does. Below are the four safety hazards associated with any oil boilers, including Firebird, along with risk mitigation strategies.

  • Exposure to fumes: The inhalation of fuel vapours causes adverse health effects, so it’s important to avoid breathing in these fumes and ensure that the boiler vents correctly to the outside.
  • Combustion risk: There’s a small risk of ignition from flammable vapours, especially if the vapours accumulate unchecked in poorly ventilated areas.
  • Skin irritation: Prolonged contact with fuels leads to skin irritation or more severe health issues. Good personal hygiene and the use of personal protective equipment are key when refuelling oil boilers or otherwise handling the fuel.
  • Fuel ignition: Always store and handle boiler fuel in accordance with safety guidelines to prevent accidents. Refraining from smoking around the fuel and ensuring proper ventilation when handling it.

What are the most common problems for Firebird boilers?

Below are the two most common problems for Firebird boilers.

  • Boiler not firing up: A variety of factors may cause an ignition failure in a Firebird boiler. Firstly, ignition attempts may fail due to interruptions in the fuel supply, such as a shut valve, a clogged fuel line, or the lack of fuel in the tank. Secondly, a Firebird boiler may not fire up due to electrical issues, such as tripped breakers or blown fuses. Thirdly, ignition components may not be working properly due to wear-related damage.
  • Boiler keeps locking out: Lockouts in a Firebird boiler often act as a protective measure when the boiler is unable to operate properly or safely. Examples of lockout causes include overheating due to limescale buildup, thermostat faults, faulty photocells, pressure fluctuations, or issues with venting the exhaust.

The aforementioned problems are serious issues that require the attention of an OFTEC-registered engineer. Do not attempt to fix any internal components if your Firebird boiler is not firing up or keeps locking out.

What might cause my Firebird boiler not to heat?

The following seven causes may cause your Firebird boiler not to heat.

  • Thermostat issues: A thermostat that’s not functioning properly or isn’t set correctly won’t signal the boiler to heat. Check the thermostat settings and replace it if it’s faulty.
  • Low boiler pressure: Boilers need to maintain a certain level of pressure to operate. If the pressure is too low, the boiler may not heat. Pressure loss generally stems from a leak in the boiler or heating system, and you need to have a professional repair the leak before repressurising the boiler.
  • Airlocks in the heating system: Air trapped in the radiators or pipes impedes adequate hot water circulation. Bleed the radiators to release the trapped air.
  • Faulty pump: The boiler pump circulates hot water in the system. If the pump is not working, the boiler may not be able to distribute the heat throughout the home. An OFTEC engineer must inspect and possibly replace the pump.
  • Fuel supply issues: An interruption in the fuel supply may stop the boiler from heating. Ensure there’s sufficient fuel, the valves are open, and there are no blockages.
  • Boiler lockout: Safety features may lock the boiler out due to faults like overheating or flame failure. Attempt resetting the boiler, then call an OFTEC engineer if the issue persists.
  • Diverter valve fault: This valve directs hot water between heating and DHW systems in Firebird combi boilers. If the valve is stuck in the DHW position, heating water ceases to circulate throughout the radiators, and vice versa. Professional troubleshooting and repairs are necessary to resolve diverter valve faults.

What are the Firebird combi boiler ranges?

The table below provides a summary of the Firebird combi boiler ranges.

Boiler Model kW Efficiency (ErP) Warranty Duration Typical Price Installation Cost
Envirogreen Slimline Combi (internal) 12kW-35kW A 2 years £2,200- £2,500 £1,500-£5,000
Envirogreen Combi HE (internal) 12kW-35kW A 2 years £2,200- £2,500 £1,500-£5,000
Envirogreen Combipac HE (external) 12kW-35kW A 2 years £2,200- £2,700 £1,800-£6,000
Envirogreen Slimline Combipac (external) 12kW-35kW A 2 years £2,900- £3,500 £1,800-£6,000

What are the best Firebird boiler models?

Below are the four best Firebird boiler models currently available on the UK market.

  1. Firebird Envirogreen Combi Boiler: This Envirogreen Combi is an all-in-one heating and hot water solution that does not require an additional hot water tank. It’s particularly efficient in terms of energy usage and space, making it suitable for smaller homes or properties where conserving space is essential. The key advantage of the Envirogreen Combi is its ability to provide instantaneous hot water and heating without the need for a separate storage tank, making it an ideal choice for homes with limited space.
  2. Firebird Envirogreen Popular Boiler: The Popular model is a favourite due to its high energy efficiency and reliability. It’s well-suited for a variety of home sizes and is built to last, providing consistent heating without a large environmental impact. The main advantage of the Envirogreen Popular lies in its robustness and high heat output, which makes it suitable for larger properties with higher heating demands. One disadvantage of the Envirogreen Popular is that it requires additional space for a separate hot water tank, which may not be ideal for homes with limited space.
  3. Firebird Envirogreen System Boiler: The Envirogreen System boiler is designed for homes with a high demand for hot water, and works with a separate cylinder to provide DHW. This model’s configuration means that it’s able to handle multiple taps being used at the same time without a drop in water pressure or temperature. The Envirogreen System Boiler from Firebird stands out for its whisper-quiet operation. A disadvantage is that this model comes with a higher initial cost compared to system boilers from other oil boiler manufacturers.
  4. Firebird Envirogreen Heatpac Boiler: The Envirogreen Heatpac is an external model that saves precious indoor space. The Heatpac is encased in a durable shell that withstands harsh weather. This Firebird model is known for its energy efficiency and quiet operation. However, the external placement may be a disadvantage if your home lacks appropriate outdoor space.

What are the Firebird boiler parts?

The table below lists and defines the most essential Firebird boiler parts.

Firebird Boilers Parts



1. Heat Exchanger Transfers heat from the burner to the central heating water ACC025PHE, ACC031PHE
2. Burner Produces heat by combusting fuel/td> BRN070RB2, BRN090RB2, BRN120RB2, BRN150RB3, BRN200RB4, BRN250RB4
3. Flue Expels toxic exhaust gases to the outdoors ACC000FRG, ACP009CKI, HPF035KIT
4. Ignition System Ignites the fuel flowing into the burner ACC003PKT
5. Pump Circulates hot water throughout the central heating system ZE20031996
6. Control Panel/PCB (Printed Circuit Board) Console that allows users to control boiler functions ACP001CCE, ACP001CK2, ACP001CK3, ACP001CK4, ACP001CK5
7. Oil pump ZE20030953
8. Expansion Vessel Absorbs excess pressure as the water inside the boiler heats and expands ACC012PVL, ACC014PVL, ACC018PVL
9. Pressure Relief Valve Allows the boiler to release pressure when it climbs above the normal operating levels ACCCOMSRV
10. Thermostats Regulates the temperature of water that the boiler heats ACC000THR
11. Diverter Valve Allows a combi boiler to alternate its function between central heating and domestic hot water ACC000FLP
12. Air Vent in Firebird Boilers Allows the heating system to expel air trapped in the water ACC000SSH
13. Safety Devices in Firebird Boilers Prevent hazardous conditions and ensure the safe operation of the boiler ACC000EAS, ACC000TDF, ACC000CTG, ACCCOMPRG
14. Condensate Trap/Drain Firebird Boilers in Firebird Boilers Collects and removes condensate produced by the boiler during operation ACC000TRP, ACC000FLX, ACCENVPMP
15. Heat Exchangers for Domestic Hot Water (DHW) in Firebird Boilers Transfers heat from the burner to the domestic water ACC000HTD
16. Filling Loop in Firebird Boilers Allows users to top up their central heating system if the water pressure is low ACC000FLH, ACC015FCV
17. Filters in Firebird Boilers Prevents sludge and unwanted debris from accumulating inside the boiler’s internal components BA212809, BA212022, BA212028, BA212122

1. Heat exchanger in Firebird boilers

The heat exchanger is a critical component in Firebird boilers, as it transfers heat from the boiler’s burner to the water within the heating system. In combi boilers, there is additionally a secondary heat exchanger that transfers heat to the domestic hot water supply.

Common issues with Firebird heat exchangers include limescale accumulation and sludge blockages, which are typical in many boilers. These problems reduce efficiency and may eventually lead to the failure of the part. Replacement costs for a Firebird boiler heat exchanger vary between models but are roughly £130-£230 without labour. That said, Firebird provides warranties that cover the heat exchanger for 5 years after installation.

2. Burner in Firebird boilers

Firebird boilers are equipped with Elco low NOx burners, which are integral to the boiler’s heating process. These burners work by atomising the oil, mixing it with air, and igniting the mixture to produce a controlled flame. The heat from this flame is then transferred to the boiler’s water via the heat exchanger.

Common issues with Firebird burners include nozzle blockages from oil impurities or ignition troubles. Regular servicing is vital for maintaining burner efficiency and preventing common faults. The cost of replacing an Elco low NOx burner in a Firebird boiler is a considerable expense, as the part costs between £500-£600, excluding labour.

3. Flue in Firebird boilers

The flue in a Firebird boiler is a duct that conveys exhaust gases from the combustion process safely away from the boiler to the outside of the building. The flue is a critical component for maintaining indoor air quality and ensuring the safe operation of the boiler.

Flue issues range from blockages caused by debris or nesting animals to corrosion over time. It’s important to check the flue regularly as part of the boiler’s servicing to prevent such problems. The cost of a new flue system for a Firebird boiler varies depending on the length and type of flue required, the complexity of the installation, and the boiler model. Replacement Firebird flue kits range in price between £200-£1,000, without labour.

4. Ignition system in Firebird boilers

The ignition system in Firebird boilers ignites the atomised oil and creates the flame that heats the boiler’s water. This system typically includes an ignition transformer, electrodes, and an ignition control unit that work together to produce a high-voltage spark.

Ignition systems may malfunction due to worn electrodes, faulty ignition leads, or issues with the control unit. Such faults may prevent the boiler from firing up or cause intermittent operation. Regular maintenance helps identify and rectify these issues before they lead to a boiler breakdown. The cost of replacing ignition system components in a Firebird boiler varies. Items like electrodes and leads cost around £20, whereas the transformer costs around £40-£50, without labour.

5. Pump in Firebird boilers

The circulator pump in a Firebird combi or system boiler is a component that moves heated water from the boiler through the radiators and back for re-heating. The pump is crucial for maintaining a consistent flow of hot water throughout the central heating system.

Problems with circulator pumps include mechanical wear over time, blockages from debris within the system, or electrical faults. Issues with the pump lead to poor hot water circulation and cold spots in the heating system. The cost of replacing a circulator pump depends on the model, ranging between £150-£250 without labour.

6. Printed Circuit Board (PCB) in Firebird boilers

The Printed Circuit Board (PCB) in Firebird boilers is the electronic control centre that manages and monitors all operational functions of the boiler.

Common issues with PCBs in boilers include damage due to electrical surges, moisture exposure, or component failures, all of which lead to malfunctions in the heating system. Symptoms of a failing PCB include erratic behaviour of the boiler, failure to start, or incorrect responses to thermostat changes. The cost of a new PCB for a Firebird boiler is generally between £150-£250, excluding labour.

7. Oil pump in Firebird boilers

The oil pump in Firebird boilers is a crucial component that delivers fuel from the tank to the burner. The pump works under precise pressure to ensure a consistent flow of oil, which is necessary for efficient combustion.

Issues with the oil pump can arise from wear and tear, blockages, or electrical faults. Symptoms of a failing oil pump include difficulty in firing up the boiler, the burner not staying lit, or unusual noises during operation. The cost of replacing an oil pump in a Firebird boiler varies depending on the model but is generally in the £100 range without labour.

8. Expansion vessel in Firebird boilers

The expansion vessel in a boiler is a device designed to accommodate the increased volume of water as it heats up and expands within a closed heating system. The expansion vessel is a safety component that prevents excessive pressure build-up, which could otherwise damage the boiler.

In Firebird boilers, the expansion vessel is typically found in system and combi boiler models. These types of boilers have a sealed heating system that requires an expansion vessel to maintain pressure levels safely. On the other hand, heat-only Firebird boilers are part of an open-vent system, in which the expansion and contraction of water are managed by a feed and expansion tank.

Problems with expansion vessels include a loss of air charge, which would result in waterlogged vessels or a rupture in the diaphragm. Both faults cause the system pressure to fluctuate and potentially fail. Replacing an expansion vessel in a Firebird boiler generally costs between £50 and £100 without labour.

9. Pressure Relief Valve (PRV) in Firebird boilers

The pressure relief valve (PRV) in Firebird boilers is a safety device that releases water if the system pressure exceeds a certain level, typically 3 bar. The PRV is an essential feature that prevents damage to the boiler and heating system due to overpressure. All Firebird boilers, including combi, system, and heat-only models, are equipped with a pressure relief valve.

Common problems with PRVs include leaks, which occur if the valve fails to reseat properly after release or if debris prevents it from closing. A leaking or non-operational PRV may cause the loss of system pressure and lead to the boiler shutting down. It costs approximately £20-£30 to get a replacement Firebird PRV, excluding labour.

10. Overheat thermostat in Firebird boilers

The overheat thermostat is a safety device in Firebird boilers designed to shut off the burner if the water temperature in the boiler exceeds a safe limit. This precaution helps prevent overheating, which causes significant damage to the boiler and potentially creates a hazardous situation. Firebird equips all its boilers, whether combi, system, or heat-only, with an overheat thermostat.

Problems with the overheat thermostat include failure to reset once triggered, malfunctioning due to electrical issues, or a wear-and-tear-related fault within the thermostat. When an overheat thermostat fails, the boiler may shut down prematurely or fail to shut down in response to overheating. Replacing an overheat thermostat in a Firebird boiler incurs costs of £35-£50, excluding labour.

11. Diverter valve in Firebird boilers

The diverter valve changes the heating modes between central heating and DHW in Firebird combi boilers. The valve diverts the hot water generated by the combi to either the radiators or the taps, depending on the user’s commands. When a hot tap is turned on, the diverter valve switches operation from heating the radiators to heating the water for domestic use. System and heat-only Firebird boilers do not have internal diverter valves as they work with external hot water cylinders or storage tanks, which manage the distribution of hot water separately from the heating system.

Common issues with diverter valves include stuck mechanisms due to limescale or debris build-up and mechanical failures due to wear. It costs between £80-£100 to get a new diverter valve for a Firebird combi, excluding labour costs.

12. Air vents in Firebird boilers

Auto-air vents automatically remove trapped air from the heating system, thus helping maintain its efficiency and reducing noise. Firebird system and combi boilers come with auto-air vents, whilst their heat-only counterparts do not. Heat-only boilers are part of an open-vented system and usually have manual air bleed points due to the presence of a feed and expansion tank.

Leaks are the biggest issue with auto-air vents. Leaks may occur if the seal around the float deteriorates or if the vent fails to close properly after releasing air. Leaking air vents cause a drop in system pressure and may lead the boiler to shut down or operate inefficiently. Replacing an auto-air vent on a Firebird boiler is relatively inexpensive and is a straightforward job for a heating engineer. Typical replacement costs for a Firebird air vent are in the £10-£15 range, not including labour.

13. Condensate Trap/Drains in Firebird boilers

The condensate trap and drain in a Firebird boiler are components that collect and remove the acidic water produced during the condensing process. This condensate needs to be disposed of safely to prevent damage to the boiler and the property. The condensate trap in Firebird boilers holds a small amount of water to seal the unit, stopping combustion gases from entering the living space. The drain then safely removes the trapped condensate from the boiler to an external discharge point. Firebird’s current lineup of boilers (which are all condensing) includes a condensate trap and drain.

Common issues with condensate traps and drains include blockages from debris or sludge, freezing in cold weather conditions, or leaks from the trap or pipe. Blockages or freezing may cause the boiler to shut down as a safety measure, while leaks often lead to water damage. The cost of addressing issues with the condensate trap or drain is usually low, particularly if it’s a simple blockage that can be cleared. However, if the trap is damaged beyond repair, you’ll need an engineer to replace it. Part-only costs for the trap and drain range between £10-£100, depending on the scale of replacement.

14. Heat Exchangers for Domestic Hot Water (DHW) in Firebird boilers

The Domestic Hot Water (DHW) heat exchanger (also known as the “secondary plate heat exchanger”) in a Firebird combination boiler transfers heat from the boiler to the tap water. This component allows the combi to heat water on demand.

All Firebird combi boiler models are equipped with DHW heat exchangers. Meanwhile, system and heat-only Firebird boilers don’t have a DHW heat exchanger. These boiler types only heat the central heating water inside the boiler casing, whilst the DHW gets heat indirectly from a coil within the cylinder.

The common issues with DHW heat exchangers include scale accumulation in hard water areas. Limescale buildup reduces boiler efficiency and flow rates and leads to internal component failure over time. Replacing a DHW heat exchanger in a Firebird combi boiler is a significant expense due to the part’s complexity and the labour involved in the replacement. The replacement heat exchanger alone costs £130-£260.

15. Filling loop in Firebird boilers

The filling loop is a component in some Firebird boilers that allows for the manual repressurisation of the heating system. The loop is used to add water to the system when the pressure drops below the required level for optimal operation.

In Firebird’s range, the filling loop is found in system and combi boilers. These boiler types are part of a sealed system, which means they’re closed off from the water mains without a filling loop and require one to manage the system pressure. Heat-only Firebird boilers, on the other hand, do not require a filling loop as their feed and expansion tank automatically maintains the correct water level and pressure.

Issues with the filling loop can include leaks if the valves or connections are not tight, or if the loop is left connected, which can pose a risk of system contamination. It’s additionally common for users to forget to close the valves after repressurising, leading to potential problems with excess pressure. The expenses associated with replacing a filling loop are minimal, as the replacement parts typically cost between £20-£30 without labour.

16. Filters in Firebird boilers

Filters in boilers are essential components that protect the system by trapping debris, dirt, and sludge before they enter and cause component damage or reduce heating efficiency. The filter in a Firebird boiler typically consists of a metal or plastic housing containing a mesh that traps any unwanted particles. Some filters incorporate magnetic elements to capture metallic debris, which is common in systems with iron or steel components.

Firebird boilers often come with factory-fitted or external system filters. These filters are especially important in the high-efficiency boilers produced by Firebird, which have narrow waterways that are easily clogged by impurities.

Common issues with boiler filters include clogging due to the accumulation of debris, which restricts flow and reduces heating efficiency. If not serviced regularly, a clogged filter may lead to damage in other parts of the system, such as the pump or heat exchanger. The cost of a new filter ranges between £110- £150 without the labour needed to replace the part.

How is the customer service of the Firebird boiler manufacturer?

The customer service of Firebird Boilers is prompt and efficient, judging by customer reviews on Trustpilot. Firebird’s Trustpilot page boasts numerous accounts of representatives demonstrating considerable expertise and problem-solving skills. Customers often receive timely responses, and the representatives address issues with a sense of urgency.

Customers have the option of reaching Firebird’s support team through various channels, which vary depending on the user’s geographic location. Below is a list of the various support contact options for customers in England, Scotland, Wales, Northern Ireland, and Ireland.

  • In England, Scotland, and Wales: The Firebird customer service hotline is reachable via phone at +44 (0)1752 691177, fax at +44(0)1752 691131, and by email at [email protected].
  • In Northern Ireland: You’re able to contact the support team at +44 (0)28 3088 8330 or through fax at +44(0)28 3088 9096, with emails directed to [email protected].
  • In Ireland: The Firebird support team contact number is +353 (0)26 45253 and fax at +353(0)26 45309, with the email address being [email protected].

Firebird caters to digital convenience by offering an online inquiry form, which is useful for quick queries or service requests. Homeowners interested in purchasing a new boiler or heating system are encouraged to submit their house plans directly online for a tailored service experience. Additionally, Firebird has taken steps to empower customers with self-service tools, such as their online selection tool for oil boilers and sustainable heating systems.

Does customer service help with Firebird boiler installation?

Firebird customer service offers help with boiler installation in the following five ways.

  • Boiler manuals: Firebird provide comprehensive installation manuals for all their boiler ranges. These documents offer detailed guidance on the installation process, ensuring that every step is carried out correctly.
  • Renewables manuals: Firebird are committed to sustainable heating solutions, so they supply manuals specifically for their renewable energy products. These manuals are designed to guide installers through the setup of more environmentally friendly systems, adhering to the latest industry standards.
  • Commissioning documents: Firebird make available a suite of documents that cover the commissioning phase. These documents are crucial for installers to certify that the systems are installed as per Firebird’s specifications and are operating at peak efficiency.
  • Installer training on all Firebird products: Firebird offer installer training courses, which are intended to equip fitters with the knowledge and skills needed to handle Firebird products effectively. The training covers a wide range of topics, from basic installation to troubleshooting and maintenance.
  • Technical videos: Firebird have produced a series of technical videos for installers in need of a quick refresher. These videos are accessible and provide step-by-step visual guides on various aspects of boiler installation and maintenance.

Are parts of Firebird boilers available for replacement?

Yes, parts of Firebird boilers are available for replacement through a variety of channels. These include online heating and plumbing merchants, where a vast range of Firebird parts may be browsed and purchased. Boiler Parts Online, Direct Heating Spares, and PlumbNation are three popular online merchants where you’re able to find Firebird boiler

Professional heating engineers additionally have the option to procure Firebird boiler parts from local merchants’ brick-and-mortar stores. This accessibility ensures that maintenance or repairs can be conducted without significant delays, thereby reducing downtime of the heating system.

Is it costly to repair Firebird Boilers for a possible problem?

The cost of repairing Firebird boilers with a possible problem varies based on the four factors listed below.

  • Nature of the problem: The cost of repair largely depends on the specific issue and the boiler part that needs replacement or fixing. For instance, simpler fixes like replacing a faulty ignition electrode cost relatively little, ranging between £60-100 including labour. However, significant repairs such as replacing a damaged heat exchanger are considerably more expensive, ranging from £600 to £1,200 with parts and labour.
  • Choice of engineer: Repair costs fluctuate depending on the choice of engineer. Independent, local engineers offer more competitive rates compared to larger, national service providers.
  • Warranty status: If your Firebird boiler is still under warranty, you may be covered for the full cost of the parts and possibly the labour. It’s important to check the specifics of your warranty coverage to understand what is included.
  • Boiler coverage status: Those with an active boiler cover policy might only be responsible for the excess or callout charges as stipulated in their policy. These charges typically range from £0 to £100. Without boiler cover, or if the boiler is out of warranty, the owner must cover the full costs of any repairs.

How aesthetic is the design of Firebird boilers?

The design of Firebird boilers is practical with an emphasis on environmental integration. The external oil boilers from Firebird come in a muted green casing, chosen specifically to blend seamlessly with garden surroundings. This design philosophy is shared by other manufacturers, such as Worcester Bosch, who also produce green external oil boilers. The internal models, like the Envirogreen Kitchen, Envirolite Utility, Envirogreen Slimline Combi, Envirogreen Combi HE, and Envirogreen System boast a compact design, making them suitable for fitting beneath standard kitchen worktops. Firebird’s internal boilers come primarily in white or off-white, but their unobtrusive aesthetic does not compromise on their functionality or their ability to fit into small spaces. The table below overviews the physical dimensions of the current Firebird boiler ranges.

Firebird boiler model Height (mm) Width (mm) Depth (mm)
Envirogreen Heatpac 12-18kW 945 620 625
Envirogreen Heatpac 12-20kW 945 720 625
Envirogreen Heatpac 20-26kW 945 720 625
Envirogreen Heatpac 26-35kW 945 720 625
Envirogreen Heatpac 36-44kW 1074 839 855
Envirogreen Heatpac 58kW 1074 839 855
Envirogreen Heatpac 73kW 1200 903 855
Envirolite Heatpac 12-20kW 945 720 625
Envirolite Heatpac 20-26kW 945 720 625
Envirolite Heatpac 26-35kW 945 720 625
Envirogreen Popular 12-18kW 684 344 381
Envirogreen Popular 12-20kW 684 441 381
Envirogreen Popular 20-26kW 684 441 381
Envirogreen Popular 26-35kW 684 441 381
Envirogreen Popular 36-44kW 815 470 531
Envirogreen Popular 58kW 815 470 533
Envirogreen Popular 73kW 873 530 527
Envirogreen Popular 80-100kW 1052 625 746
Envirolite Boilerhouse 12-20kW 684 441 381
Envirolite Boilerhouse 20-26kW 684 441 381
Envirolite Boilerhouse 26-35kW 684 441 381
Envirogreen Kitchen 12-18kW 847 345 610
Envirogreen Kitchen 12-20kW 847 442 610
Envirogreen Kitchen 20-26kW 847 442 610
Envirogreen Kitchen 26-35kW 847 442 610
Envirogreen Kitchen 36-44kW 1048 464 852
Envirogreen Kitchen 58kW 1048 464 852
Envirogreen Kitchen 73kW 1196 524 851
Envirogreen Commercial Utility 80-100kW 1249 623 1071
Envirolite Utility 12-20kW 845 442 610
Envirolite Utility 20-26kW 845 442 610
Envirolite Utility 26-35kW 845 442 610
Envirogreen Slimline Combi 12-20kW 855 520 600
Envirogreen Slimline Combi 20-26kW 855 520 600
Envirogreen Slimline Combi 26-35kW 855 520 600
Envirogreen Slimline Heatpac 12-20kW 920 465 760
Envirogreen Slimline Heatpac 20-26kW 920 465 760
Envirogreen Slimline Heatpac 26-35kW 920 465 760
Envirogreen Combi HE 12-20kW 845 595 614
Envirogreen Combi HE 20-26kW 845 595 614
Envirogreen Combi HE 26-35kW 845 595 614
Envirogreen System 12-20kW 847 442 610
Envirogreen System 20-26kW 847 442 610
Envirogreen System 26-35kW 847 442 610
Envirogreen System 36-44kW 1048 660 852
Envirogreen Combipac HE 12-20kW 945 720 625
Envirogreen Combipac HE 20-26kW 945 720 625
Envirogreen Combipac HE 26-35kW 945 720 625
Envirogreen Slimline Combipac 12-20kW 970 570 625
Envirogreen Slimline Combipac 20-26kW 970 570 625
Envirogreen Slimline Combipac 26-35kW 970 570 625
Envirogreen Systempac 12-20kW 945 720 625
Envirogreen Systempac 20-26kW 945 720 625
Envirogreen Systempac 26-35kW 945 720 625
Envirogreen Systempac 36-44kW 1074 839 855
Envirogreen Slimline Systempac 12-20kW 920 465 760
Envirogreen Slimline Systempac 20-26kW 920 465 760
Envirogreen Slimline Systempac 26-35kW 920 465 760

Does a Firebird Boiler Fit into the intended space?

Whether a Firebird boiler fits into the intended space depends on where you plan to situate it. Firebird boilers offer a range of sizes to suit various domestic spaces. For instance, internal models like the Envirogreen Kitchen, Envirolite Utility, Envirogreen Slimline Combi, Envirogreen Combi HE, and Envirogreen System boast compact designs. Their slim profiles allow for unobtrusive integration under standard kitchen worktops.

Meanwhile, Firebird’s external models are often larger than their internal counterparts, but still have a relatively small footprint and thus take up little space outdoors. Their green casing allows these external boilers to blend into outdoor surroundings discreetly.

Given the array of Firebird boiler dimensions, we urge you to measure the size of the intended installation area and confirm whether your chosen Firebird model will fit there.

Does the Firebird Boiler have an electronic control panel?

Yes, Firebird boilers have an electronic control panel. This panel serves as the user interface for the boiler, allowing homeowners and engineers to manage and monitor various functions of the heating system. Below are the four key features often found in these boiler control panels.

  • Temperature control: Users are able to set and adjust the desired temperatures for heating and hot water.
  • Diagnostic information: The panel displays error codes or system statuses, which help in troubleshooting boiler issues.
  • Timer and programming: This feature allows users to set up heating programmes, so the boiler operates only when needed.
  • Safety locks: Some models include child locks or safety features to prevent unintended changes to the boiler settings.

What are the alternatives to Firebird boilers?

Below are the two alternatives to Firebird boilers.

  • Worcester Bosch: Worcester Bosch’s oil boiler range is characterised by its advanced technology and the availability of both internal and external models, similar to Firebird. However, Worcester tend to incorporate more innovative features, such as smart controls and potentially sleeker designs. Worcester boilers may come at a higher cost than Firebird’s, but they offer a longer warranty period, which is 7 years as standard. Worcester’s oil boilers are a robust alternative to Firebird’s for customers looking for a reputable brand with a strong focus on technological integration and long warranty terms.
  • Grant UK: Grant UK specialise in oil-fired boilers and are well-regarded for their eco-friendly and high-efficiency models, much like Firebird. Though their product range is less varied than Firebird’s, Grant UK are known for easy installation and robust build quality, often at a more affordable price point than Firebird’s. Grant UK stands as a valuable alternative to Firebird for those looking for cost-effectiveness without sacrificing performance in oil boiler solutions.

How to compare Firebird boilers to other boiler brands?

To compare Firebird boilers to other boiler brands, consider how each brand performs in each of the 10 criteria listed below.

  • Efficiency ratings: Compare the energy efficiency ratings of Firebird boilers with those of other brands. High-efficiency boilers convert more fuel into heat, saving on energy bills and reducing environmental impact.
  • Output and size: Look at the kilowatt (kW) output and size dimensions of the boilers. Ensure the output matches the heating and hot water demands of your property.
  • Noise levels: Consider the decibel ratings provided by the manufacturers. A quieter boiler is generally more desirable, especially if you install it near living spaces.
  • Technology and features: Assess the technology and features offered by each brand. Firebird, for example, may have specific flue options or burner technologies that differ from competitors.
  • Reliability and lifespan: Research the reliability of the brand and the expected lifespan of the boilers. Customer reviews, warranty periods, and service records provide insight into the long-term performance of a boiler.
  • Cost: Evaluate the upfront cost of the boilers, but additionally consider the long-term running costs. A cheaper boiler that is less efficient generally ends up costing more in the long term.
  • Availability of spare parts and service: Ensure that there is good availability of spare parts and that you have access to qualified OFTEC service technicians to perform annual boiler service and repairs.
  • Customer support: Quality customer support from the manufacturer is crucial, especially when dealing with warranties or technical issues.
  • Environmental impact: Consider the environmental credentials of each boiler brand, such as emissions levels and the use of sustainable materials or technologies in the unit.
  • Installation requirements: Some boilers may have specific installation requirements that can affect the cost or feasibility of installation in your home.

Is Firebird better than Grant boilers?

No, Firebird is not better than Grant boilers. Firebird and Grant have similar boiler lineups, with equivalent fuel efficiency ratings of 92% on average, a comparable build quality, and a similar average price point. However, Grant boilers have a slight edge over Firebird in their warranty terms. Firebird boilers come with rather complex warranty terms, whereby the boiler shell is covered for 5 years, whilst the rest of the components are only under warranty for 2 years. In contrast, Grant offers comprehensive out-of-box guarantees ranging between 2-5 years, depending on the model, and you’re able to get extended 5-10-year guarantees by using a Grant-accredited installer.

Opting for a boiler with a longer warranty is wise even if the lengthier coverage term comes at an extra cost for two reasons. Firstly, a longer warranty generally attests to the manufacturer’s faith in their boilers. Secondly, a warranty that lasts longer provides you greater peace of mind and protects you from out-of-pocket repair expenses.

What do Heatingforce Experts suggest about Firebird Boilers?

Our expert team at HeatingForce believes that Firebird boilers offer fantastic value, particularly given their high fuel efficiency and modest pricing. We’ve given Firebird a rating of 4.4 out of 5 based on the five considerations listed below.

  • Price and performance efficiency (5.0/5.0): We’ve given Firebird 5 points for price and performance efficiency for two reasons. Firstly, Firebird boilers are modestly priced, with an average cost of just £2,000. This price point is similar to that of Grant, but roughly 10% and 15% lower than that of Worcester Bosch and Warmflow oil boilers, respectively. Secondly, Firebird have some of the most fuel-efficient oil boilers on the UK market, with efficiency ratings in the 90-94% for most boiler models. There are oil boiler manufacturers with higher fuel efficiency standards (such as Warmflow), but Firebird’s humble pricing strikes a finer balance between fuel efficiency and upfront costs.
  • Design (5.0/5.0): Our HeatingForce team has given a full 5 points for Firebird boilers’ design, which the manufacturer so obviously devised with the end user in mind. All internal Firebird boilers fit neatly under a standard kitchen worktop. This ability to fit out of sight and out of mind helps households conserve valuable floor space. That said, the boilers are by no means an eyesore: internal Firebird boilers have an elegant, retro aesthetic with a sleek and minimalist casing design and universally appealing white and off-white colours. Likewise, external Firebird boilers have a relatively small footprint, with the most cumbersome models measuring 720mm in width, which is about 50mm less than Worcester equivalents. The forest green casing colour allows the boilers to blend in with various outdoor surroundings.
  • Customer service (4.0/5.0): We’ve given Firebird 4 out of 5 possible points for customer service for two reasons. Firstly, the assortment of customer service options is impressive: Firebird’s support team are available via phone, email, and an online contact form. Secondly, the Firebird boiler users are generally thrilled with the customer support they receive, and Firebird themselves, even when their appliances break down. This level of satisfaction points to a support team that’s as prompt and knowledgeable as it is effective at resolving issues. Firebird’s Trustpilot rating of 4.1 out of 5 is a testament to the effectiveness of the manufacturer’s support team.
  • Safety (5.0/5.0): HeatingForce gives Firebird a full 5 points for safety because Firebird boilers comply with all applicable safety standards for oil-fired boilers, and come equipped with quality, industry-standard safety devices. To date, no safety incidents have been recorded with this brand. Firebird boilers’ clean safety record shows that adherence to safety standards and reliance on accepted safety mechanisms effectively mitigate the inherent hazards of fossil fuel-fired boilers.
  • Warranty duration (3.0/5.0): Our HeatingForce experts give Firebird boilers 3.0 out of 5.0 points for warranty duration. Firebird’s standard warranty lengths are short compared to those of competing oil boiler brands. Firebird only offer a 5-year warranty on the boiler shell and heat exchanger, whilst the other internal components are covered for only 2 years. In contrast, Worcester Bosch offer a 7-year guarantee on their Danesmoor and Heatslave oil boilers, as long as you use a Worcester-accredited installer to fit them.

What to know before purchasing a brand-new Firebird boiler?

Below is a list of five things you should know before purchasing a brand-new Firebird boiler.

  • Firebird boilers balance upfront costs and efficiency: Firebird boilers are competitively priced (£2,000 on average) and offer high fuel efficiency ratings between 90-94%, balancing cost with performance.
  • Firebird boilers have a compact fit: Firebird’s internal boiler models are designed to fit under standard kitchen worktops, offering a space-saving solution without compromising on aesthetic appeal. External models have a smaller footprint compared to some competitors and come in a forest green colour to blend with outdoor surroundings.
  • Customer support is prompt and effective: With a Trustpilot rating of 4.1, Firebird provide various customer service channels, ensuring access to prompt and expert support. Consider the manufacturer’s reputation for responsive and helpful customer service.
  • Warranty terms are a bit short: Firebird offer a 5-year warranty on the boiler shell and heat exchanger but only a 2-year warranty on other internal components.
  • Firebird boilers are future-friendly: Firebird boilers’ compatibility with various heating systems can allow for seamless integration with renewable technologies or more advanced controls.

How is the maintenance of the Firebird boiler?

Maintenance is crucial for a Firebird boiler if you want to ensure its longevity and efficiency, and is a must for maintaining the warranty’s validity.

A qualified OFTEC technician should service a Firebird boiler annually. During this service, the technician carries out several checks and adjustments, inspecting and cleaning the boiler burners, heat exchanger, flue ways, and combustion chamber. They may replace the oil nozzle, check for any oil leaks, and ensure that all seals and gaskets are intact.

The cost of servicing a Firebird boiler varies depending on your location and the engineer’s rates but generally ranges from £100 to £180. It’s a worthwhile investment compared to the higher costs of emergency repairs or the replacement of parts due to neglect.