The Best LPG Boilers For Small, Medium & Large Properties

By | 11th September 2017

Looking for a new LPG boiler and don’t know where to start?

No problem. In our 3-minute guide to the best LPG boilers, we’ll be explaining:

  • What Size LPG Boiler You Need
  • Do You Need a Combi, System Or Regular Boiler?
  • The Best LPG Boilers For Small, Medium & Large Properties

What KW LPG Boiler Do You Need?

Take 60 seconds to understand what KW LPG boiler you need, and this entire process is going to be much faster.

Imagine you walk into estate agent and group properties into:

  • Small
  • Medium
  • Large

LPG boilers are grouped in the same way:

  • 24kw-27kw
  • 28kw-34kw
  • 35kw-42kw


Property Size

Number Of Radiators

Number Of Bathrooms


Small properties. 1-2 bedroom apartments or terraced houses

10 or less



Mid-range properties. 3-4 bedrooms.

8-14 radiators



Large properties

14-20 radiators



This isn’t a one-size fits all approach. It’s a guideline.

If you want to fill baths quickly, run taps and showers at the same time, have lots of open space, minimal insulation, or a conservatory, the goal posts will change.

And, that’s why we’d always suggest getting a quote from an LPG boiler installer.

Or, leave a comment at the bottom with any questions and we’ll do our best to help you out.

What Type Of LPG Boiler Do You Need?

Already know what LPG boiler you need? Skip to the next section…

There’s 3 types of LPG boiler:

  • Combination
  • System
  • Regular

If you don’t want to spend extra cash, you’ll want to stick with what you already have.

LPG Combi Boiler

You’ll have no hot water tank, or cylinder. Combination boilers heat water as and when you need it.

The downside is they prioritise hot water. So, have a 20 minute shower, and you’ll notice the heat in your home drop considerably.

System LPG Boiler

A system combines a boiler with a hot water cylinder. So, it’s suitable for bigger properties (and those with the need to run showers and taps at the same time). Of course, you’ll need space to store the cylinder.

If you have a boiler and cylinder (but not water storage tank), you need a system boiler. Be sure to check you’re loft, as that’s where storage tanks are sometimes installed.

Regular LPG Boiler

A regular boiler needs a cylinder and water storage tank. So, you’re talking about a lot of space here.

If you have a cylinder, boiler and a storage tank (sometimes installed in loft spaces), you’ll need a regular boiler.

The Best LPG Boilers

We’d always recommend sticking to top brands. There are cheap LPG boiler brands out there, but it’s false advertising.

Get LPG Boiler Quotes Here

Sure, the boiler is a large cost. But, with fittings and installation, the total cost can almost double. I’d sooner spend an extra £100-200 on a quality boiler brand that lasts for 7-10 years or more.

You can’t really go wrong with products from any brand below, although consult a LPG installer first, as they’ll be able to direct you to the perfect boiler for your property (and know of any boiler deals at their local merchant):

  • Worcester Bosch
  • Ideal Boilers
  • Potterton
  • Vaillant
  • Baxi
  • Vokera Boilers



Output (KW)


Worcester 28CDI Compact
Vaillant EcoTec PRO 28
Baxi DuoTec 28
Worcester 38CDI Classic
Worcester 34CDI Classic




Output (KW)

Boiler Price

Worcester 24I
Worcester 27I Compact
Vaillant EcoTec Plus 630
Ideal Vogue S32 GEN2 LPG




Output (KW)

Boiler Price

Worcester 27RI
Worcester 30RI Compact
Worcester 40CDI Regular
Vaillant EcoTec Plus 438 – Open Vent


Who Can Fit A LPG Boiler?

There seems to be a bit of confusion when it comes to who can fit an LPG boiler.

You need a Gas Safe registered engineer that has also completed their LPG qualification.

For residential property, that’s CCLP1 PD.

You can get quotes from LPG boiler installers here.

What’s Next?

Got a question about LPG boiler prices, installation quotes you’ve received, or picking the right boiler for your property?

We’re always happy to help.

Leave a comment below and we’ll get back to you as soon as possible.


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