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Ideal Logic Plus 30kw Combi Boiler Review [Hint: It Beats Worcester’s 30i]

Ideal Boilers is a thriving UK boiler manufacturer that now produce 6,000 boilers per week. And the Ideal Logic Plus 30kw combi boiler is one of the most popular in their whole range. And this is why:


Here’s What You Need to Know

The Logic Plus range we are about to review is not to be confused with the standard Logic range (known as the Ideal Instinct range in some plumbing merchants).

The standard Logic only comes with a 2-year warranty. You definitely want to fork out the extra for the Plus model and grab that extra warranty.

The Logic Plus range boasts a no hassle 7-year warranty. Better still, it’s A-rated, ErP compliant and offers over 91% efficiency (which means it’s on par with the equivalent Worcester Bosch boilers).

Looking to get a boiler installed at a reasonable price? Fill out the 30 second form and get help, advice and quotes ASAP.

Price Compared To The Worcester Bosch Greenstar 30i

Whether you are looking at an Ideal, Vaillant, Baxi or even Vokera review, every boiler is compared with a Worcester. Branding!

The equivalent Worcesterused to be a 28i Junior (24i Junior when comparing the Ideal 24kw). But the Junior range was discontinued and has been replaced by the Worcester Bosch Greenstar 25i (Logic Plus 24kw equivalent) and the Worcester Bosch Greenstar 30i (Logic Plus 30kw equivalent).

What They Cost

Logic 30kw Plus: £800-825 including VAT (boiler only)

Worcester Greenstar 30i: £960-1000 including VAT (boiler only)

Other Cost Considerations

To get Worcester’s full warranty, you’ll need to purchase their own brand controls and system filter. We documented that here. But the flues and flue accessories are also slightly more expensive than Ideal Boiler’s.

Ideal Boilers (Logic, Logic Plus and Vogue) are known for being extremely easy to install. Worcester’s are not. An engineer is likely to spend an extra 1-2 hours to swap a Worcester than they would if it was an ideal.

What this equates to in terms of extra boiler installation cost, own branded controls and filter, flue/flue accessories and extra labour, is approximately £400-500 extra for a Worcester boiler over an Ideal Boiler.

Additional features

  • Backlit display with easy to see pressure gauge.
  • Never miss a boiler service with their newly built-in service indicator.
  • Reduced mechanical parts for extra reliability (using top brand components such as Honeywell)
  • Compatible with a huge range of additional controls.
  • Frost protection technology built in that reduces the probability of a breakdown.

Suitable Property Size

The Ideal Logic Plus 30kw combi boiler is suitable for mid-range properties. So, we are talking about 3-4 bedrooms with 1-2 bathrooms and not excessive demand for hot water (i.e. not 2 showers and a tap on at once).

Smaller properties are going to be suited to the Ideal Logic Plus 24kw and larger properties will be more suited to the Ideal Logic Plus 35kw.

Combination boilers heat hot water on demand, so output is extremely important (speak to your engineer if you are unsure which size is suitable for your property).

If your property has more than 2 bathrooms, or excessive demand for hot water, it’s likely you’ll need either the Logic Plus 35kw combi or a system boiler.

Suitable Installation Area [Awesome Compact Design]

Most other brands produce a compact range (Worcester has the CDI Compacts for instance) which are designed for the sole purpose of fitting into a standard kitchen cupboard. The Logic Plus 30 boilers will fit into a kitchen cupboard as standard.

Here’s the spec sheet from Ideal:


You’ll be getting a 7-year standard warranty with the any Logic Plus boiler.

Controls and Accessories

24 Hour Mechanical Timer

Ideal offer a range of controls for the Logic Plus 30kw combi boiler such as a 24 hour mechanical timer. This is a simple but functional plug-in and play option.

Radio Frequency Electronic Programmer

This 7 day programmer is simple to use but has some complex features. Users can control both the heating and hot water from a single dashboard.

Other features include:

  • Holiday mode
  • The ability to set the boiler to pre-heat at a certain time

Outdoor Sensor

This cool little product will monitor the temperature of the air around your property. As the temperature adjusts, it will adjust the flow temperature of water in your home. So, your heating is perfectly balanced at all time.

Tests have shown that an outdoor sensor has managed to improve efficiency by around 2%.

Flues and Flue Accessories

Like all boiler brands, vertical and standard flues are available from Ideal.

If your flue is likely to be close to a neighbours’ (or your own) window, you can utilise Ideal’s plume management kit which allows the installer to extend the flue.


For the 30kw Logic Plus boiler, the most important specifications are:

  • 30.3kw domestic hot water output
  • 24.2kw central heating output
  • 12.4L per minute flow rate
  • The Logic 30kw & 35kw can be converted to LPG (the 24kw cannot)


The whole Ideal Logic Plus range offers excellent value for money. Our experience from supplying and installing this range has been extremely positive. Not to mention the costs savings in comparison to Worcester Bosch.

Still stuck on buying a Worcester Bosch 30I? Make sure you read our review first.

Product video

Still want to know more about the Ideal Logic Plus combi boiler range?

Check out their product video below.

What’s Next?

Looking to get a boiler installed?

Fill out the boiler installation form and get help, advice and quotes quickly from up to 3 engineers.


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