CALCULATORS & GUIDES
Find the calculation you need.
Start with a specific heating question, or learn how the numbers behind your comparison work.
START WITH YOUR QUESTION
Heating costs, explained.
Heat pump vs gas
Compare annual costs and find your break-even COP.
ExploreHeat pump running costs
Estimate electricity use in kWh and annual running costs.
ExploreGas boiler running costs
Work out gas costs using kWh, m³, ft³ or therms.
ExploreElectric heater costs
Calculate costs from heater power, operating hours and tariff.
ExploreHeating with air conditioning
Compare reversible AC heating with gas and electric heaters.
ExploreWood & pellet heating
Compare fuel sold by weight or volume with other heating.
ExploreCOP and SCOP explained
Understand COP, SCOP and seasonal electricity consumption.
ExploreOur calculation method
Read the formulas, unit conversions and limitations.
ExploreMAKE IT PERSONAL
Open the calculator