Easter sale now on Plus an extra 10% off orders over £500 with code EASTER10

Are cast iron radiators more efficient than modern steel radiators?

FAQ banner image

Cast iron radiators are proven to work in an energy efficient manner, with cast iron actually boasting a higher level of conductivity than steel.

As a material, cast iron may take longer to heat up than steel, but it also retains its heat better, for much longer.

A cast iron radiator will remain warm for a long while after being switched off, so it can be argued that cast iron radiators are more efficient than modern designer radiators.

Based on their properties, you might prefer to use cast iron models as opposed to bathroom radiators or use them as kitchen or lounge radiators, dependent on your specific home heating preferences.