Central heating performance
Hot water performance
Status display lights
The Which? difference
As well as thousands of impartial product reviews from our Test Labs, a Which? membership also gets you:
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Which? can help you make good decisions
Best Boiler Brands
Deciding which new boiler or replacement boiler to buy? Read our guide to the best boiler brands, which shows the best brands for satisfaction and reliability.
New Boiler: What You Need to Know Before you Buy a New Boiler
Need a boiler? Find out everything you need to know before you buy a new boiler, including how much it costs, and the type of boiler you need.
How to Buy the Best Boiler
Expert Which? advice on how to find the best new boiler for your home, learn about the best type and size boiler for your home, including our video on buying the best boiler and our step-by-step guide to installation.