Coal heating cost in Poland in 2026
Enter the floor area, the condition of the house and the price per tonne from your invoice. The calculator works out coal use and compares it with a pump and gas.
Coal heating per year
PLN 4,228
Cheapest with these inputs: coal
| Heat needed per year | 13,200 kWh |
| Heat pump | PLN 4,641 · 4,258 kWh |
| Coal (class 5 boiler) | PLN 4,228 · 2.6 t |
| Gas (condensing boiler) | PLN 5,403 · 15,349 kWh |
| of which fixed gas charges | PLN 938 |
| Heat pump cheaper than coal / gas by | PLN -413 / PLN 762 |
Gas: myORLEN PLN 197.29/MWh net + PSG W-3.6 distribution (PLN 0.291/kWh gross). Coal: Statistics Poland 2025 average, 24 MJ/kg, 75% efficiency. A negative figure means the pump costs more. An estimate.
The cost of heating with coal is the heat the house needs, divided by the boiler’s efficiency and the coal’s calorific value, multiplied by the price per tonne. According to Statistics Poland, the average price of a tonne of hard coal for households was PLN 1,602 in 2025, 6 % less than a year earlier. Heating coal has about 24 MJ/kg, or 6.7 kWh of energy per kilogram, and a modern class 5 boiler uses about 75 % of it over the season. A 120 m² house at 110 kWh/m² therefore burns about 2.6 t of coal a year, costing PLN 4,228. A heat pump with SCOP 3.5 heats it for PLN 4,123, with no fuel to carry and no ash to remove. An old manual-feed boiler is less efficient, so it burns more. The calculator above works this out for your house and price.
Checked by Radif Partners · Editorial policy · Method
Coal use and cost in four houses
| House | Coal per year | At PLN 1,602/t | At PLN 2,000/t | Pump, SCOP 3.5 |
|---|---|---|---|---|
| 100 m², 110 kWh/m² | 2.2 t | PLN 3,524 | PLN 4,400 | PLN 3,436 |
| 120 m², 110 kWh/m² | 2.6 t | PLN 4,228 | PLN 5,280 | PLN 4,123 |
| 120 m², 170 kWh/m² | 4.1 t | PLN 6,535 | PLN 8,160 | PLN 6,373 |
| 150 m², 170 kWh/m² | 5.1 t | PLN 8,169 | PLN 10,200 | PLN 7,966 |
The Statistics Poland price is a national, full-year average. Bagged coal and higher-grade pea coal usually cost more, and loose coal bought in summer less. Enter the price from your own invoice in the calculator.
What would the same heat cost from a heat pump?
Heat pump (EU minimum SCOP)
PLN 5,290
| Coal at the 2025 GUS price | PLN 4,805 |
| Useful heat | 15,000 kWh |
24 MJ/kg, 75% boiler, G11 power about PLN 1.09/kWh gross.
Replacing a coal boiler
Coal heating can still cost less to run than a weak heat pump, but it needs daily tending, space for fuel and compliance with anti-smog resolutions. Boiler replacement is funded by the Czyste Powietrze programme: up to 100% of costs for the lowest incomes. The heating cost calculator compares it with a pump and gas for your house.