The Heating Debate in Ireland
Heating accounts for around 60% of the average Irish home's energy use, making it the single biggest factor in your energy bills. Choosing the right heating system — and fuel — can save you hundreds or even thousands of euros per year.
In 2026, Irish homeowners have four main heating options: natural gas, electricity (direct), oil, and heat pumps (which use electricity but far more efficiently). Let's compare them.
Natural Gas Heating
Cost per kWh: approximately 10-14 cent/kWh
Annual heating cost (average home): €1,100-€1,500
Natural gas remains the most popular heating fuel in Irish urban areas. It's relatively affordable, convenient (no deliveries needed), and efficient with a modern condensing boiler (90%+ efficiency).
Pros: Lower running costs than direct electric, no fuel storage needed, reliable supply
Cons: Not available in all areas (mainly urban), fossil fuel with carbon emissions, gas boilers will be phased out in new builds
Direct Electric Heating
Cost per kWh: approximately 35-45 cent/kWh
Annual heating cost (average home): €2,500-€3,500
Direct electric heating (storage heaters, panel heaters, convectors) is the most expensive way to heat a home. While the heaters themselves are cheap and simple, the running costs are very high because electricity costs 3-4 times more than gas per unit of energy.
Pros: No boiler maintenance, no gas connection needed, simple to install
Cons: Very expensive to run, less controllable than central heating, can leave rooms cold in very cold weather
Heat Pumps
Cost per kWh of heat: approximately 10-15 cent/kWh (electricity cost divided by COP)
Annual heating cost (average well-insulated home): €800-€1,200
Heat pumps are the most efficient way to heat a home. An air-to-water heat pump delivers 3-4 units of heat for every 1 unit of electricity consumed (this is the Coefficient of Performance, or COP). This makes them comparable to or cheaper than gas, despite using electricity.
Pros: Cheapest running costs, no fossil fuels, eligible for SEAI grants up to €6,500, environmentally friendly
Cons: High upfront cost (€8,000-€15,000), home needs good insulation, may need larger radiators or underfloor heating
Oil Heating
Cost per litre: approximately €0.95-€1.15
Annual heating cost (average home): €1,500-€2,200
Oil is common in rural Ireland where gas isn't available. While installation costs are moderate, oil prices are volatile and the long-term trend is upward due to carbon taxes.
Pros: High heat output, available everywhere, familiar technology
Cons: Price volatility, requires tank storage, carbon-intensive, being phased out for new builds
The Environmental Factor
Ireland has committed to reducing carbon emissions by 51% by 2030. Heating is a major contributor, and government policy is pushing homeowners toward cleaner options. From 2025, new-build homes cannot install fossil fuel boilers.
If environmental impact matters to you, heat pumps combined with solar panels are the clear winner — especially if your electricity comes from a 100% renewable tariff.
What Should You Choose?
If you have gas and a working boiler: Stay with gas for now, but consider a heat pump when your boiler needs replacing. In the meantime, switch to the cheapest gas tariff using Billmanage.
If you're on direct electric: Investigate a heat pump immediately — the savings are dramatic. Look into SEAI grants to offset the installation cost.
If you're on oil: Consider switching to a heat pump, especially if you're due a new boiler. The SEAI grant makes the economics much more attractive.
If you're building or doing a major renovation: A heat pump is the default choice for new and renovated homes.
Compare Gas and Electricity Prices
Regardless of your heating system, make sure you're on the best tariff. Use Billmanage's utility comparison tool to compare gas and electricity prices from all Irish providers.