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Which is the Best 32kW System Boiler?

Becky Mckay
By: Becky Mckay
Updated: 6th July 2022

Best 32kW System Boiler

If you’re looking to have a new boiler installed in a property with around 15 radiators and 2-3 bathrooms, a 32kW system boiler would comfortably meet your demand for heating and hot water.

Leading boiler manufacturers, ATAG, Baxi and Ideal all have 32kw system boilers to choose from that are highly efficient, powerful and, most importantly, reliable:

  • ATAG i32S
  • Baxi Megaflo 32
  • Ideal Vogue Max

Will a 32kW system boiler suit my home?

A 32kW system boiler will be able to comfortably provide enough central heating and hot water for a home with around 15 radiators and 2-3 bathrooms.

You're won't be limited to only 32kW system boilers, as outputs of 28-34kW are likely to also meet the needs of your home. To find the most suitable system you should get the expert opinion of a Gas Safe registered engineer.

Using Boiler Guide, you can get free quotes from up to 3 heating engineers based in your local area.

If your heating engineer recommends a system boiler with a different output, these articles could help you in your search for a reliable unit:

Best 32kW system boilers

For properties where a 32kW system boiler is a suitable option, there's a great range of reliable and efficient system boilers that are covered by extensive warranties.

Best 32kW System Boilers Seasonal Space Heating Efficiency ErP Rating Warranty
ATAG i32S 94% A 10 years
Baxi Megaflo 88.5% A 7 years
Ideal Vogue Max 93% A 10 years

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The ATAG iS range of system boilers are highly efficient and reliable boilers that have been designed with the user in mind as the controls are

  • Compact dimensions of 700 x 440 x 355mm (HxWxD) will help to save space around your home
  • Simple to use system that will give you greater control over the boiler
  • The iCon heat exchanger has a lifetime replacement guarantee
  • A 10 year warranty comes as standard
  • Fully compatible with ATAG iSteel hot water tanks

The ATAG iS range of system boilers includes a wide number of output ratings, making them suitable for almost any type of property. As well as a higher 40 kW output model, ATAG iS boilers are also available in outputs of 15 kW, 18 kW and 24 kW.

Baxi Megaflo

Baxi have built a great reputation for themselves amongst boiler installers as they consistently manufacture highly reliable boilers. The Baxi Megaflo range of system boilers is no different, with features that include:

  • User friendly controls
  • Fitted with high-quality brass components
  • A wide range of flue lengths to help make the installation location more flexible
  • Compatible with the Megaflo Eco hot water cylinder

The 32 kW model is the highest output in the Baxi Megaflo range so if you need a smaller output for your home then 15, 18, 24, 28 kW units are also available.

Ideal Vogue Max

Vogue Max system boilers are premium heating systems from Ideal, one of the leading UK boiler manufacturers.

  • A low lift weight makes for simple installation which could reduce the installation time and costs
  • Boiler frost protection keeps the boiler running through even the coldest of winters
  • The standard 10 year warranty can be extended to 12 years when installed and serviced by an Ideal Max accredited installer

For properties that don't have such high heating and hot water demands to warrant a 32 kW boiler, then 12kW, 15 kW and 26 kW system boilers are also available in the Ideal Vogue Max range.

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How much do 32kW system boilers cost?

The best 32kW system boilers are likely to cost around £1,000 with the ATAG iS range likely to be the most expensive.

32kW System Boiler Potential Cost (before installation)
ATAG i32S £2,000+
Baxi Megaflo £975
Ideal Vogue Max £1,000

When it comes to system boilers, you also need to remember that as well as the boiler itself, a hot water cylinder is needed too. The cylinder is essential when having a system boiler installed as it stores the hot water – ready to deliver to the hot water taps as and when you need it.

How much does a hot water cylinder cost?

System boilers need an unvented hot water cylinder to store the hot water which can cost from £450 up to around £1,000.

Two of the leading unvented hot water cylinder manufacturers include Heatra Sadia and Worcester Bosch.

Model / Size Re-heat Time from cold ErP Efficiency Rating Guarantee Approximate Price range (cylinder only)
Heatrae Sadia Megaflo Eco Plus 170l 22min B Lifetime £800 - £900
Worcester Bosch Greenstore 180l 27min B 25 years £900 - £1000

Find out the Best Unvented Cylinders.

Best 32kW system boilers for off-grid properties

These best 32kW system boilers all run on natural gas, which isn't a suitable fuel for properties of the gas network. Fortunately, a couple of the best 32kW system boilers are LPG compatible.

Liquefied Petroleum Gas (LPG) is a type of gas that can be stored onsite, which means that you don't need to be connected to the gas network.

Best 32kW System Boiler LPG Compatible?
ATAG i32S Yes
Baxi Megaflo No
Ideal Vogue Max Yes

Worcester Bosch Greenstar Danesmoor oil boilers

While two of the best 32kW system boilers are LPG compatible, the Worcester Bosch Greenstar Danesmoor range of oil boilers is another option. This is a highly efficient range of oil boilers, manufactured by one of the leading boiler brands. Greenstar Danesmoor boilers are available for internal, utility and external installation.

32kW Worcester Bosch System Oil Boilers Seasonal Space Heating Efficiency ErP Rating Warranty
Greenstar Danesmoor 91% A 2 years
Greenstar Danesmoor Utility 91% A 2 years
Greenstar Danesmoor External 91% A 2 years

Finding a system boiler installer

When the time comes to replace your boiler then you'll need to find a heating engineer to carry out the installation.

Now, depending on whether you're having a gas or oil boiler installed, the qualification that needs to be held by the engineer will differ. Gas boilers must always be installed by a Gas Safe registered engineer while an OFTEC technician is needed for oil boiler installations.

By completing our simple online form, you can get free quotes from up to 3 installers based in your local area who are fully-qualified to carry out your boiler installation.

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Becky Mckay

About the author

Becky Mckay

Becky is one of our home heating and renewable energy experts and has a wealth of experience writing about the world of heating.

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