Find the right amount of warmth
Enter the dimensions of the space you want to heat. Include any connected open-plan areas.
Nominal 9 kW, maximum 11 kW. The calculator uses 10 kW, the middle.
A room-sizing estimate, not a full heat-loss survey. Climate, large windows, draughts and open stairways can change the output needed. We can help confirm a suitable fireplace.
How is this estimated?
Room volume × insulation allowance: 35 W/m³ for very good insulation, 40 W/m³ for standard insulation or 50 W/m³ for poor insulation. Divide by 1,000 for kW. The comparison uses the listed heat output of this fireplace. Ask us to confirm its operating range for your room.