Heating cost by energy type
Gas, oil, pellets, heat pump or electric: what does your heating cost per year?
How it works
Cost = demand / efficiency × price. Efficiencies: gas boiler 92%, oil 85% (10 kWh/L), pellets 88% (4.8 kWh/kg), heat pump = COP, direct electric 100%. Each degree lower ≈ 7% saved.
Results are for guidance only and do not replace professional advice.
Worked example
With the default values:
- Yearly heat demand (kWh)15000
- Gas price (per kWh)0.10
- Heating oil price (per litre)1.05
- Pellet price (per kg)0.38
- Electricity price (per kWh)0.32
- Heat pump efficiency (COP)3.2
- Turn the thermostat down by (°C)1
you get:
- CheapestPellets · €1,254.97/yr
- Natural gas€1,516.30 per year
- Heating oil€1,723.24 per year
- Pellets€1,254.97 per year
Frequently asked questions
How does the “Heating cost by energy type” tool work?
Cost = demand / efficiency × price. Efficiencies: gas boiler 92%, oil 85% (10 kWh/L), pellets 88% (4.8 kWh/kg), heat pump = COP, direct electric 100%. Each degree lower ≈ 7% saved.
What do I need to enter?
Just fill in: yearly heat demand, gas price, heating oil price, pellet price, electricity price, heat pump efficiency. The result updates as you type.
Can you give an example?
Yearly heat demand (kWh): 15000; Gas price (per kWh): 0.10; Heating oil price (per litre): 1.05; Pellet price (per kg): 0.38; Electricity price (per kWh): 0.32 → Cheapest: Pellets · €1,254.97/yr; Natural gas: €1,516.30 per year.
Is this calculator free, and is my data private?
Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.