Ireland: heat pump vs gas boiler running costs
Real unit rates, compared per 100 kWh of heat delivered — compiled August 2026. Confidence: Moderate.
| Heating system | Cost per 100 kWh |
|---|---|
| Gas boiler | €13.69 |
| Heat pump | €9.14 |
A heat pump costs about 33% less per 100 kWh of heat delivered at today’s rates.
Heat pump: COP 3.5 (typical modern unit) at €0.32/kWh electricity. Gas boiler: 89% efficiency at €0.1218/kWh-equivalent fuel. Source: SEAI Heat Pump Technology Guide (typical SCOP); CRU/SEAI average unit prices
See Ireland energy costs in full
See Ireland energy costs →Ready to compare Ireland energy providers?
See Ireland providers →Actual running costs depend heavily on your specific heat pump/boiler model, insulation, and (for the UK) which electricity tariff you’re on — specialist heat-pump tariffs can flip this comparison in the heat pump’s favour. This is not financial or purchasing advice.