Most people think air conditioning only makes rooms cold. It doesn't. Modern systems are heat pumps — they heat and cool your home, often more efficiently than a gas boiler. Better for your bills. Better for the environment.
An air conditioning system doesn't generate cold air. It's a heat pump — it moves heat from one place to another using a refrigerant that absorbs and releases heat as it changes between liquid and gas.
In summer, the system absorbs heat from inside your room and pushes it outside. In winter, it does the reverse — pulling heat from the outdoor air and releasing it inside. One system. Two jobs. No gas required.
Even when it's freezing outside, the air still contains heat energy. Modern heat pump systems extract usable heat from outdoor air down to -15°C to -20°C. In the UK, that covers virtually every winter day. The systems we install — Mitsubishi Heavy Industries, Daikin and Fujitsu — are engineered for climates like ours.
A gas boiler burns fuel — even the best converts about 90% into heat. A heat pump moves heat. For every 1kW of electricity, it produces 3 to 4kW of heat. That's 300-400% efficiency.
At current UK energy prices, heating with a heat pump is comparable to or cheaper than gas.
| Heating Method | Efficiency | Cost per kWh of Heat |
|---|---|---|
| Gas boiler (90% efficient) | 90% | ~8p/kWh |
| Electric panel heater | 100% | ~24p/kWh |
| Heat pump (COP 3.5) | 350% | ~7p/kWh |
For rooms you use most — home offices, bedrooms, living rooms — heating with your AC can significantly reduce your energy bills.
UK household heating accounts for nearly a third of total carbon emissions — as much as all cars combined.
As the UK grid shifts to renewables, heat pumps get cleaner every year. Gas boilers will always burn fossil fuel.
Many customers barely use their central heating anymore in rooms with air conditioning. It's quieter, faster, and cheaper to run.
Free home survey and honest advice. We'll tell you what system suits your property and how much you could save.
Yes. Modern systems extract heat from outdoor air down to -15 to -20°C. In the UK, they provide comfortable heating all winter.
For individual rooms, yes. A heat pump produces 3-4kW of heat per 1kW of electricity, making it comparable or cheaper per kWh than gas.
It can supplement or partially replace it. Many customers heat their most-used rooms with AC and keep the boiler for hot water. We'll advise on the best approach.
At current UK prices, roughly 7p per kWh of heat — comparable to gas at about 8p. For a typical room, around £15-25 per month in winter.