Heat pumps and gas boilers provide the same basic service of heating a home, but they do so in very different ways. The better choice depends on the property, heating demand, electricity and gas prices, installation cost and long-term energy strategy.
| Factor | Heat pump | Gas boiler |
|---|---|---|
| Energy source | Electricity | Natural gas |
| Heat generation | Moves heat | Burns fuel |
| Solar integration | Strong potential | Limited |
| Operating temperature | Generally lower | Generally higher |
| Existing system compatibility | Requires assessment | Often familiar |
Heat pump efficiency
Heat pumps can deliver multiple units of heat for each unit of electricity under suitable operating conditions. Actual performance depends on design, temperatures, controls and installation.
Heat pumps and solar
Solar can offset some heat pump electricity demand, particularly during periods of solar generation.
Installation differences
Heat pump projects can involve outdoor equipment, hot water cylinders, electrical work and heating-system changes. Gas boiler replacements can be simpler where the existing system is already compatible.
Compare the whole system
Do not compare only the equipment purchase price. Consider installation, running costs, maintenance, energy tariffs and future solar generation.
Compare your heating options
Assess your home and compare heat pump, solar and existing heating options.
Explore Heat PumpsFrequently asked questions
Is a heat pump cheaper than a gas boiler?
The financial outcome depends on installation cost, electricity and gas prices, heat demand, system efficiency and available incentives.
Can solar make a heat pump cheaper to run?
Solar can offset some electricity consumption from the heat pump when solar generation is available.
Are heat pumps suitable for older homes?
They can be suitable, but insulation, heat loss, radiators and system design need to be assessed.
Do heat pumps need radiators?
Many heat pump systems can use radiators, but their required output at lower flow temperatures needs to be assessed.
Alexander Brooks
Home Energy Consultant at BrightGrid Energy


