Heat pump vs gas boiler
Estimate annual space-heating demand from floor area and insulation class, then compare heat-pump electricity cost (by SCOP) against a gas boiler.
Open calculatorHeating degree days (HDD)
Seasonal heat (kWh) = HDD × 24 hours × UA / 1,000. UA (in W/K) is the building’s total fabric heat-loss coefficient (sum of U × area across all envelope elements).
Seasonal heat demand
12,600 kWh
Estimated heating cost
4,410 zł
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A typical Central European heating season (to an 18 °C base) totals roughly 3,000–4,000 HDD.
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Educational estimate only. Not medical, tax, legal or financial advice.