sales@castironradiatorcompany.co.uk        01277 717 174​

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01277 717 174

Free Delivery Over £1000

0% Finance Available

10 Year Guarantee

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Copyright © 2021. Cast Iron Radiator Company is the trading name of Westminster Bathrooms Ltd.
Registered in the UK with company number 12717037. All rights reserved.

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Copyright © 2021. Cast Iron Radiator Company is the trading name of Westminster Bathrooms Ltd.
Registered in the UK with company number 12717037. All rights reserved.

This heat output or ‘BTU’ (British thermal unit) calculator is a great way to work out how much radiator power you need.

What size radiator do you need?

Enter room measurements in metres or feet

Calculate

BTU/hr

Watts