Central heating 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:
- Unlimited access across which.co.uk
- Advice on the move with our apps
- Which? magazine delivered to your door
- The inside scoop on important issues, from scams to savings accounts
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 new boiler? Find out everything you need to know before you buy a new boiler, including how much a new boiler costs, and the type of new boiler you need.
How to Buy the Best Boiler
Expert Which? advice on how to find the best new boiler for your home, including our video on buying the best boiler and our step-by-step guide to installation.