Heat pump
A year’s space-heat demand from floor area and a rough insulation class, then electricity at a chosen SCOP versus gas.
Open a calculatorHeating degree days
kWh = HDD × 24 × UA / 1000. UA is the house heat-loss coefficient in W/K (U × area, summed). HDD are °C-days against your base temperature. Wind and solar gain are not in the figure.
Heat
12,600 kWh
Cost
4,410 zł
Heat: 12,600 kWh
A typical Polish season is a few thousand HDD to 18 °C. Your weather station is better than a default.
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An educational estimate. Not medical, tax or credit advice.