Heating Cost Calculator

Estimate your annual home heating costs by fuel type, home size and usage patterns. Compare gas, electricity, oil and heat pump costs at current UK rates.

Home size

Insulation quality

Heating fuel

Hours heated per day (average)

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Fill in the details to get your calculation.

Smart thermostats can cut heating bills by 10–15% through better scheduling and zoning.

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How This Is Calculated

Annual heating cost = estimated energy consumption (kWh) × fuel unit cost (p/kWh). Energy consumption is estimated from floor area, insulation factor and hours of daily heating. UK average gas price is approximately 6.2p/kWh, electricity varies by tariff (typically 24–28p/kWh standard, 7–9p/kWh off-peak E7).

At current UK energy prices, heat pumps are typically 15–30% cheaper to run than gas boilers due to their high efficiency (COP of 3–4, meaning 1 unit of electricity produces 3–4 units of heat). However, heat pump installation costs £8,000–£15,000 vs £2,000–£3,000 for a boiler. The payback period is 8–15 years unless using the £7,500 Boiler Upgrade Scheme grant.