Not sure which heating system is cheapest for your home? With energy prices more volatile than ever, the answer isn’t always obvious. Enter your home details below and compare all four main systems side by side — with real 2025–2026 prices for your country.
Why is the heat pump almost always cheapest?
Heat pumps don’t generate heat — they move it. For every 1 kWh of electricity consumed, a modern air-source heat pump delivers 3–4 kWh of heat (COP of 3.2 on average). This efficiency advantage beats gas and oil boilers in most countries, even where electricity is more expensive per unit.
What about installation costs?
A heat pump typically costs $8,000–$15,000 installed. However, most countries offer significant rebates — up to $7,500 in the US (IRA), £7,500 in the UK, and €5,000–€10,000 in France and Germany. With savings of $500–$2,000/year, payback is typically 5–12 years.
Frequently Asked Questions — Heating Cost Comparison Calculator
Which heating system is cheapest to run in 2026?
In most climates, air-source heat pumps are the cheapest heating option by a wide margin — typically 40–60% cheaper than gas heating and 65–75% cheaper than oil heating. This is because modern heat pumps deliver 3–4 units of heat for every unit of electricity consumed (coefficient of performance of 3–4). Only in areas with very cheap natural gas and very expensive electricity might gas come close to competing on running costs.
How much does a heat pump cost to install?
A typical whole-home air-source heat pump system costs $8,000–$15,000 installed in the U.S., including the air handler, outdoor unit, and labor. Mini-split systems for individual rooms or zones cost $3,000–$7,000. Ground-source (geothermal) heat pumps are more efficient but cost $15,000–$30,000. Federal tax credits under the IRA cover 30% of heat pump costs (up to $2,000), and many utilities offer additional rebates of $500–$3,000.
Are gas boilers being phased out?
Yes, in many countries. The UK has banned new gas boiler installations from 2035. The EU is pushing member states to phase out fossil fuel boilers by 2040. Several U.S. states (California, New York, Washington) are restricting gas connections in new construction. For anyone planning a heating upgrade in the next 5–10 years, investing in a heat pump now avoids a forced transition later and locks in lower running costs immediately.
What’s the most efficient electric heating option?
Heat pumps are by far the most efficient electric heating technology — 3–4x more efficient than electric resistance heating (baseboard heaters, electric furnaces). If you have electric resistance heating now, switching to a heat pump is one of the most impactful upgrades you can make, cutting your heating bill by 65–75%. Resistance heaters convert electricity to heat at 100% efficiency; heat pumps convert it at 300–400% efficiency.
Does outside temperature affect heat pump efficiency?
Yes. Heat pump efficiency (COP) decreases as outside temperatures drop. Most modern cold-climate heat pumps operate efficiently down to -15°F (-26°C), but efficiency drops from about COP 4 at 50°F to COP 2–2.5 at 17°F. The calculator uses climate-adjusted averages for your region. In very cold climates (Canada, northern U.S. states), high-performance cold-climate heat pumps (like those rated by the Northern Climate Council) are recommended.
Can I reduce my heating costs without replacing my boiler?
Absolutely. Before replacing any heating system, maximize your home’s efficiency: add attic insulation to R-49 or higher, seal air leaks around windows, doors, and electrical outlets, install a smart thermostat (saves 10–12% on heating bills), add draught-proofing strips to exterior doors, and bleed your radiators if you have a hydronic system. These measures can reduce heating demand by 20–35% and are worth doing even if you do plan to upgrade your heating system.
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