Air source heat pumps work by absorbing heat from the outside air and transferring it to an indoor space. They can either provide heat to an indoor space via a fan blowing warm air, or via the central heating pipe system connected to radiators or under floor heating. The latter version also provides hot water as well as heat.
As with any system, there are advantages and disadvantages to air source heat pumps. Here we will look at to both the benefits and the drawbacks, to give you an idea as to whether an air source heat pump is the right option for you.
Pros of Air Source Heat Pumps
Switching from a coal or electricity-based heating system to air source heat pumps will significantly reduce your carbon footprint. You may also be able reduce the cost of your energy bills as well, with the initial installation cost also offset by the Domestic Renewable Heat Incentive (RHI) once it reopens to new applicants. Air source heat pumps were eligible for the domestic RHI up until March this year, and may be extended again soon.
Air source heat pumps are not just for heating, but can also be used for cooling purposes. Some models are designed to provide heat during winter and cool air during the summer.
Installing an air source heat pump is also pretty easy, and can be completed within a couple of days in ideal circumstances. Air source heat pumps are a lot easier to install than ground source heat pumps, because there is no digging up the ground required. While it is always advisable to check with your local authority, domestic air source heat pumps don’t usually require planning permission.
Maintenance of an air source heat pump is pretty simple, and will only need servicing by a technician once a year at most. There are some care tips you can follow to maximise the pump’s performance, such as cleaning filters when needed and clearing away any leaves, dust and other debris from the pump. Air source heat pumps should last around 20 to 25 years with proper care.
You also don’t need to store any fuel for an air source heat pump, because the ‘fuel’ is simply the outside air.
Cons of Air Source Heat Pumps
You may need larger radiators as air source heat pumps are a lower heat supply compared to traditional boilers. You will also need to consider the extra cost of installing under floor heating to get the most out of the air source heat pump system.
To fully appreciate the benefits of an air source heat pump, your building must be well insulated already. A poorly insulated building will lose the generated heat quickly, though this can also be said of any heating system.
Some air source heat pumps make noise, though technological innovations are improving this aspect all the time.
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