Easy Fuel Comparison

Heating and hot water running costs by fuel

1Property energy use▾

Space heating (kWh per year)From the EPC: "kWh per year for heating"

Hot water (kWh per year)From the EPC: "kWh per year for hot water"

Find the property's EPC on GOV.UK

Space heating

—

kWh per year

Hot water

—

kWh per year

Total

—

kWh per year

2Fuel prices▾

Unit price

Standing charge

Electricityp/kWh · p/day

Gasp/kWh · p/day

Heating oilp/litre, inc. VAT

No standing charge

Electricity and gas: Ofgem price cap, 1 October to 31 December 2026, GB average, Direct Debit. View the Ofgem price cap
Heating oil changes daily. Many sites quote it without VAT, so add 5%. Check today's oil price

Heat pump electricity

Include standing charges

The electricity standing charge is added to every option, as every home pays it. The gas standing charge is added to the gas boiler only, as it is only paid with a gas supply. Heating oil has no standing charge.

3Efficiency▾

Gas boiler (%)

Oil boiler (%)

Heat pump (SCOP)

Direct electric (%)

Recommended starting points, used for both heating and hot water. Change them to suit the system.

Boilers rarely reach their rated efficiency across a season. In one field trial, gas boilers averaged approx. 85% (regular) and 82.5% (combi).
The heat pump figure is at 55 °C flow. A well-designed system running at a lower flow temperature will usually do better.

4Running cost and carbon per year▾

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For comparing fuel running costs only. Results are only as good as the figures entered. This is not a quotation, a bill forecast or a system design.

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