We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here.

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

Sign up nowor login
Need help choosing?

Which? boiler brand reviews tell you which are the most and least reliable boilers according to our survey of thousands of boiler owners. We also tell you what expert heating engineers make of each brand. For a quick decision on which brands you can trust, and which you can't, head straight to our round-up of the best boiler brands.

Displaying 1

Heatline boiler review

What is 'Brand score'?

The brand score is made up of brand reliability (assessed by customer survey), brand customer satisfaction (assessed by customer survey) and ratings from heating engineers (based on Which? Trusted Traders heating engineer survey). These surveys were carried out in May 2017. To learn more read how we assess boilers.
    CompareRemove all products