Cast Iron Radiator BTU Calculator

Use this calculator to calculate the BTU required for your Cast Iron Radiators. The result with give either a figure

in BTU or WATTS.  Each of our radiators has an output per section , which you divide by the figure given which gives

you the number of sections required for your cast iron radiators, if you need any assistance our sales department are a call or email away.

01748 821500 -

Enter your room dimensions in:

Select your room type:

Dining room / Lounge / Bathroom
Kitchen / Common Area

Extra Factors: (tick if yes)

Is your room North facing?
Does your room have French windows?
Does your room have double glazing?