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Potterton Promax 24 Store & 115l Cylinder ErP review

£2,738.00 Typical price

Brand score %

Key features
  • Gas
  • System

Unlike other condensing gas system boilers, the Potterton Promax 24 Store & 115l Cylinder has a 115-litre storage tank built in. This makes the boiler much bigger than a conventional system boiler, so you'll need plenty of floor space to house it, but as you don't need a separate hot water tank it could free up space in your airing cupboard. Its ready supply of hot water could make it a good choice for homes with multiple bathrooms, but would other Which? members recommend the Potterton brand? Find out below.

Included in our expert review
  • Pros and cons
  • Heating engineer views
  • What type of home is this boiler suitable for?
  • Will this boiler produce enough hot water for my home?
  • How efficient is this boiler?
  • What controls does this boiler have?
  • Is this boiler smart compatible?
  • What is the warranty with this boiler?
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Technical specifications

Launched

Specification

Brand scores

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

Find out how we assess boilers
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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.

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