Radiator Sizing

13 Oct 2020
Reaction score
United Kingdom
How accurate are the online guides for sizing a radiator and are there any which are more accurate.
I've moved into an ex-rental house which has a relatively new Main boiler but the rads are older than God and take up so much wall space, I want to replace them with new more efficient radiators.
Sponsored Links
Sponsored Links
I understand over sized allows your system to run cooler and save fuel.
Yes I'll still get larger heat output than needed but these are old school rads that are enormous. Some type 22 rads would be half the size.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local