Heating cost calculator for a 120 m² house
The calculator starts with a 120 m² house. Pick the insulation standard and see the cost of heating and hot water per year and on average per month.
Example: 120 m² house, insulated
Cheapest: eco-pea coal, about 4,160 PLN a year
- Heat demand
- 15,600 kWh/yr
- of which hot water
- 3,600 kWh
- Spread
- 12,064 PLN
- Eco-pea coalsolid fuel: about 4,160 PLN a yearapprox. 2.6 t a year
- Heat pumpelectricity: about 4,635 PLN a yearapprox. 4,457 kWh of electricity a year
- Natural gasgas: about 5,091 PLN a yearapprox. 16,421 kWh of gas a year
- Pelletssolid fuel: about 8,727 PLN a yearapprox. 3.7 t a year
- Direct electricelectricity: about 16,224 PLN a yearapprox. 15,600 kWh of electricity a year
Assumptions and formula
| Heating | Calorific value | Efficiency | Energy price |
|---|---|---|---|
| Eco-pea coal | 7.5 kWh/kg | 0.80 | 1,600 PLN/t |
| Heat pump | counted in kWh | SCOP 3.5 | 1.04 PLN/kWh |
| Natural gas | counted in kWh | 0.95 | 0.31 PLN/kWh |
| Pellets | 4.9 kWh/kg | 0.85 | 2,330 PLN/t |
| Direct electric | counted in kWh | 1.00 | 1.04 PLN/kWh |
An estimate for a typical heating season. Fixed charges and the device itself are not included. Full methodology
How electricity, gas, pellet and coal prices have changed, month by month. Price history
Ready-made calculations
What heating a 120 m² house costs per month
A 120 m² house insulated after 2000 with hot water for four people needs about 15,600 kWh of heat a year. On average that is about 386 PLN a month with a heat pump, about 424 PLN with gas and about 727 PLN with pellets.
This is an average over the whole year. Bills are higher in winter, and in summer you pay mostly for hot water.