This calculator helps you compare the costs of a heat pump vs. a gas heating system.
Initial situation for this calculator to be useful: There is an existing house with a gas heating system. You are considering replacing it with a heat pump.
Enter your values to calculate the annual costs and payback time for a heat pump investment.
Heat Pump Investment
Gas Heating System
Heat Pump Operating Costs
Results
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Understanding the parameters
Gas efficiency (Heizwertnutzungsgrad): How efficiently your gas boiler converts gas to heat. Typically 80-95%.
Heat pump COP (Jahresarbeitszahl): Coefficient of Performance - how much heat the pump produces per unit of electricity. A COP of 3.5 means 3.5 kWh heat per 1 kWh electricity.
Gas consumption: Your annual gas consumption for heating (check your gas bill).