To establish how much heat your room needs, consult your Corgi registered installer or heating engineer. If you want to work it out yourself look below to see our BTU Calculator rule of thumb, which leads you through the simple calculation and works out the answers for you.
All outputs listed are calculated in line with the European BSEN442 Testing Standard at ∆t50° (the latest standards for modern boiler systems). Our previous brochures listed outputs at ∆t60° to allow for the older boiler systems. To convert Δt50° to Δt60° simply multiply x 1.264.
BTU calculator
rule of thumb to work out rad size is simply...
1 work out room volume in cubic meters
2 Times by 0.04
3 this gives you the answer in KW
In Imperial
1 work out room volume in cubic feet
2 times by 4
3 gives answer in BTU