Worked examples
Heat pump vs gas worked examples
Energy-only comparisons across 6,000–20,000 kWh useful annual heat demand, with electricity, gas and COP sensitivity.
6,000 kWh useful heat/yearBase energy-only result: gas saves £35/yr8,000 kWh useful heat/yearBase energy-only result: gas saves £47/yr10,000 kWh useful heat/yearBase energy-only result: gas saves £59/yr12,000 kWh useful heat/yearBase energy-only result: gas saves £71/yr14,000 kWh useful heat/yearBase energy-only result: gas saves £83/yr16,000 kWh useful heat/yearBase energy-only result: gas saves £94/yr18,000 kWh useful heat/yearBase energy-only result: gas saves £106/yr20,000 kWh useful heat/yearBase energy-only result: gas saves £118/yr
Inputs on these pages are illustrative. Replace them with your own tariff, product, quote or household figures in the linked calculator before making a decision.