BS EN 12831 and CIBSE DHDG (heat loss)
What it covers
What it means for our calculators
Where to read it
Calculators that use it
Boiler size calculator
Example: Boiler output: at least 29.3 kW
Heat loss calculator
Example: Heat loss: 476 W (0.48 kW) at the design temperature
Heat pump size calculator
Example: Heat pump: at least 6.0 kW at your design conditions