Radiators

Radiators
Show all Radiators

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To find radiators by BTU, enter the amount below and click 'go'

Radiator size calculator

This calculator is a mini version of that provided by Ultraheat. Visit Ultraheats website for the full version with more options.


basement or ground floor
middle/top floor
single floor

m

m²


solid cavity insulated

m


single glazing double glazing

m²

m


Help topics:

Why do your BTU and kW ratings for radiators differ to other website listings?


The BTU and kW ratings are calculated by the manufacturers using different Delta-T values.

We list our radiators using the current Delta-T50 regulations.

Others may have the older Delta-T60 regulation BTU and kW ratings shown, which will inflate th ... See More


Delta-T (ΔT)


Delta-T (ΔT) is used to calculate BTU and kW ratings for radiators.

The Delta-T number is the difference between the ambient air temperature and the water temperature inside the radiator.


In the UK we follow the current European regulati ... See More