Skip to content Upgrade your home with an energy-efficient air source heat pump and reduce your heating bills. Installed by trusted Welsh engineers
Save on heating bills available Low carbon, future-proof heating
In Wales, many homes still rely on oil, LPG or older heating systems. With rising oil prices and energy uncertainty, more homeowners across South Wales are switching to heat pumps for a more stable and efficient solution.
Rural areas across Wales, including Carmarthenshire, Pembrokeshire and Neath Port Talbot, are especially affected by rising oil costs. A heat pump removes the need for fuel deliveries and gives you consistent heating all year round.
Every home in Wales is different. We provide a fixed quote after your free survey.
We understand switching to a heat pump is a big decision — especially here in Wales, where the weather (and the bills) can be unpredictable. That’s why we’re proud to share what some of our local customers had to say after choosing Celtic Green Energie.
“I was really unsure if a heat pump would keep us warm through a Welsh winter. But it’s been brilliant — warm, quiet, and reliable. We haven’t touched the boiler since!” — Gareth, Brecon
“I thought it would be loud and stick out like a sore thumb, but it’s surprisingly quiet and blends into the garden. You barely notice it’s there.” — Carys, Carmarthen
“The £7,500 grant made a huge difference. With the savings on our heating bills, we’re already seeing the benefits — and Celtic Green made the process hassle-free.” — Rhys & Elin, Swansea
Heat pumps aren’t just greener — they’re cheaper to run. Here’s how a typical home’s annual heating costs compare across energy sources in April 2024.
| Heating System | Energy Cost (p/kWh) | Efficiency (%) | Estimated Running Cost (p/kWh) | Typical Annual Cost (£) |
| Ground Source Heat Pump | 27 | 450 | 6 | £880 |
| Air Source Heat Pump | 27 | 350 | 8.1 | £1170 |
| Mains Gas | 7 | 89 | 7.9 | £1200 |
| Oil Boiler | 10 | 92 | 10.9 | £1650 |
| Electric Heating | 27 | 100 | 27 | £4100 |
| LPG Boiler | 14 | 89 | 15.8 | £2400 |
Got Questions? We’ve Got You Covered.
Switching to a heat pump is a big step — but it doesn’t have to be confusing. Here are the answers to the questions we’re asked most by homeowners in Wales
Air source heat pumps are typically installed in 2 to 3 days. Larger systems or complex installs may take slightly longer. We provide a full timeline during your survey
Yes. Heat pumps are over 300% efficient, meaning they produce more heat than the electricity they use. Customers often save £500–£1,000 per year compared to oil or electric heating.
Yes. As long as your home is well insulated, a modern air source heat pump can work efficiently in older properties. We check suitability during your free site visit
Possibly. Heat pumps run at a lower temperature than gas boilers, so we assess your current system and may recommend larger radiators or underfloor heating for efficiency.
Yes — air source heat pumps are designed to extract heat even in temperatures as low as -15°C. They’re ideal for the UK climate
Not at all. Modern units are quiet-running and are usually no louder than a kitchen fridge when installed correctly outside your home. We install the NIBE heatpump which is the quietest Heat pump on the market.
For A Free no obligation quote please fill out your details below and one of our Heat pump team will get back to you