If you live in Presteigne or the surrounding Welsh border villages, chances are you’ve seen more heat pump units appearing on the sides of homes lately. Yet many people still aren’t sure how they actually work. In short, air source heat pumps pull warmth from the outside air and move it into your home, even on a frosty morning. At Green Flow Heat Pumps, our Heat Geek certified engineers install, service and repair systems for homes and businesses across Presteigne, Builth Wells, Hay-on-Wye, Hereford, Leominster and Llandrindod Wells. So, here’s how the technology works, plus a few facts that might surprise you.
How Air Source Heat Pumps Work In Simple Terms
Think of your fridge, but in reverse. Instead of pushing heat out of a box, the system draws heat from outdoors and carries it inside. Here’s the basic process:
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- A fan pulls outside air over a coil filled with refrigerant
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- The refrigerant absorbs the heat and turns into a gas
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- A compressor squeezes that gas, which raises its temperature
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- The heat then passes into your radiators, underfloor heating or hot water cylinder
After that, the refrigerant cools down, and the cycle starts all over again.
7 Fun Facts About Air Source Heat Pumps
1. They Work Well Below Freezing
Surprisingly, there is still usable heat in the air at minus 10°C. Modern air source heat pumps are built to keep running through a cold Radnorshire winter, which matters a lot in rural homes.
2. They Make More Heat Than The Electricity They Use
Because the system moves heat rather than burning fuel, it can produce around three units of heat for every unit of electricity. That ratio is called the coefficient of performance (COP).
3. Your Fridge Uses The Same Science
As mentioned above, the principle is almost identical to the one keeping your milk cold. The difference is simply the direction the heat travels.
4. They Love Low & Steady Temperatures
Unlike a boiler that blasts heat in short bursts, a heat pump works best running gently for longer. As a result, your rooms stay at a more even, comfortable temperature all day.
5. They Can Heat Your Water Too
Many people assume they only cover radiators. In fact, most systems also heat a hot water cylinder, so one unit can handle both jobs.
6. There’s No Flue Or Fuel Tank
For homes off the gas grid, this is a big win. There’s no oil delivery to arrange, no tank in the garden and no flue on the roof.
7. They Suit Businesses As Well As Homes
Offices, farms, shops and holiday lets can all benefit. Our commercial heat pumps service covers larger buildings with bigger heating demands.
Air Source Vs Ground Source: What’s The Difference?
Both systems do the same job. However, they collect heat from different places.
| Feature | Air Source | Ground Source |
|---|---|---|
| Heat taken from | Outside air | Pipes buried in the ground |
| Outdoor space needed | Small area beside the property | Large garden or land for trenches or boreholes |
| Groundworks | None | Digging required |
| Best suited to | Most homes & small businesses | Rural properties with space |
If you have plenty of land, ground source heat pumps can be a great option. Otherwise, air source is usually the simpler choice.
Is Your Home Ready For A Heat Pump?
Before any installation, a proper heat loss survey should be carried out. This tells us exactly how much heat each room needs. Insulation, radiator sizes and pipework all play a part too. That’s why we assess your current system first and offer honest advice on how to get the best results from it. You can also pair a heat pump with solar thermal panels for extra help with hot water during the sunnier months.
Frequently Asked Questions
Are Air Source Heat Pumps Noisy?
Not really. Most modern units make a low hum, similar to a fridge. Careful placement during installation keeps any sound away from bedrooms and neighbours.
Do Air Source Heat Pumps Need Servicing?
Yes. An annual check keeps the system running efficiently and helps protect your warranty. Our heat pump servicing covers everything from refrigerant pressures to controls.
Get Expert Advice On Air Source Heat Pumps In Presteigne
As Heat Geek certified specialists, we design systems properly from day one. Find out more about our air source heat pumps service, browse our gallery, or contact our friendly team today for a free quote.
