Heat Pump vs Gas Heating

A heat pump uses electricity to move heat and can deliver multiple units of heat for each unit of electricity. Gas systems burn fuel directly and depend heavily on gas prices and boiler or furnace efficiency. Comparing them fairly means estimating the useful heat delivered, not comparing fuel prices alone.

The key heat-pump input is seasonal efficiency, often expressed as a coefficient of performance. A higher value means less electricity is required for the same heat demand, but actual performance varies with outdoor temperature, system design, flow temperature, controls, maintenance, and the building envelope.

For an existing gas system, consider the equipment efficiency and the fuel unit used on the bill. Homes with poor insulation or oversized equipment can have higher demand regardless of the heat source. Efficiency upgrades, radiator changes, and controls may affect comfort and cost as much as the replacement unit itself.

The lower-cost option varies by climate, electricity tariff, gas tariff, insulation, and equipment efficiency. Use a calculator to compare the same annual heat demand under transparent assumptions, then test a conservative heat-pump efficiency and current local tariffs.

Running cost is only one part of the decision. Installation work, electrical upgrades, maintenance, noise, available space, comfort, and grants may matter. Confirm technical suitability with a qualified installer and verify any incentive directly with the official program rather than assuming it applies.

For a useful comparison, keep the period, units, and assumptions consistent across each option. Use a calculator to explore the figures, then rely on current documents from the relevant provider or authority for terms that apply to your home.

What to check next

Use the related calculator or guide to compare the assumptions that matter for your home, then confirm any tariff, quote, or program term with the relevant provider or authority.