Best Oil Boiler Brands
By Matthew Knight
We reveal the oil boiler brands you can trust. Once you know the best oil boiler brands, use our boiler reviews to choose the right one for you.
Every year we ask almost 10,000 boiler owners about the brand of boiler they own, how satisfied they are with it and whether their boiler has suffered any faults or breakdowns. We also ask more than 200 trusted boiler engineers what they think of each manufacturer and how likely they are to recommend boilers from each brand.
The results enable us to recommend the best and worst brands of oil boiler. This means you will be able to choose an oil boiler that won't let you down.
Best and worst oil boiler brands
Below, we've collated the results of our annual reliability survey and the results of our annual boiler engineers survey so that you can see which brands are the most reliable, have the highest customer score, and are the most likely to be recommended by boiler engineers who are not incentivised to install boilers from that brand.
Which? members should log in now to unlock the scores in the table. If you're not already a Which? member, try full access for one month with a £1 trial and discover the benefits of having thousands of product test results at your fingertips.
|Best oil boiler brands|
|Brand||Reliability||Customer score||Build quality||Engineer recommendation||Overall % score|
Choosing the best oil boiler brand
In May 2017 we surveyed 9,610 people about their boilers. We asked them to tell us about any breakdowns, problems and annoyances with their boiler. This enables us to rate how reliable each brand is.
We also asked them to assess how satisfied they were, and how likely they would be to recommend their brand of boiler (regardless of their experience of getting the boiler installed). These two questions form the basis of the Which? customer satisfaction score.
As well as gathering the views of people who own each brand of boiler, we also collect the views of heating engineers who work with boilers every day. In May 2017 we asked 219 Which? Trusted Trader heating engineers about their views on boiler build quality and their likelihood to recommend a boiler brand to a customer.
Make sure you choose an oil boiler with both a high customer score and a good reliability rating so that you can minimise your chances of annoying and costly faults.