Air Source Heat Pump

Extracting heat from the ambient external air to supply your heating and hot water system, air source heat pumps (ASHPs) are a highly efficient way of heating your property. Not only this, but you no longer need to rely on a temperamental boiler or expensive heaters, an ASHP can save you money and provide you with consistent heating throughout the year.

Our trusted team will assess your property and work alongside you to identify the most beneficial position for your new heat pump. Our team are expert air source heat pump installers, knowing exactly where to position your pump and will support you after the installation so you can get the most out of your ASHP.

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How do
Air Source Heat Pumps Work?

Air source pumps work by initially extracting heat from the ambient air, therefore it is best to situate the unit in an outside location that benefits from a free flow of air. Of course, our experienced engineers will always take the time to ensure your unit is fitted in an optimal position.

The ambient air is pulled into the system, whilst refrigerant is circulated through an evaporator. It is then passed through to a compressor, raising the temperature of the refrigerant and turning the liquid refrigerant to gas.

The hot gas is then passed through a condenser, this process increases the pressure and therefore increases the temperature further. The hot gas transfers its heat into the cold water already in your heating system which is then fed into your heating or hot water system to heat up your property.

Once the heat has been removed the hot gas turns back into a liquid to start the cycle again! The heat can be retained for later use also, so it’s an incredibly efficient process.


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Reduce your use of fossil fuels
by up to 50%

Not only will you save money on energy bills, but more importantly, ASHPs offer a clear step towards cutting C02 emissions.

ASHPs provide the opportunity to reduce your use of fossil fuels and dependency on the grid. In addition, You could receive £5000 off the cost of your installation with the Government’s Boiler upgrade scheme (BUS).

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What are the Benefits
of Air Source Heat Pumps?

There are many benefits to installing an air source pump system, but our top points are as follows:

Your Interior Space is Retained
As the main unit is based outside, less space within your premises is required. The systems are generally more cost effective when compared to alternative renewable heating systems too.

On a well-designed heating system with under-floor heating and an outside air temperature of 7°C, ASHPs can reach efficiencies of up to 5kW of heat for every 1kW of electricity used. This is known as the COP (ref EN 14511 A7/W35 Viessmann Vitocal 150-A technical data). In comparison, electric storage heaters have a COP of just 1kW of heat to every 1kW of electricity used.

Thanks to their simple structure, with no hot burners required, air source systems are very reliable. This reliability is amplified when they are correctly serviced and maintained. Visit our support page for more information.

The environmental benefits are huge, an ASHP installation can reduce your carbon footprint by up to 50% meaning that you can make a huge change in the fight against global warming.

Air Source Heat Pump

Frequently Asked Questions
about Air Source Heat Pumps

What is an Air Source Heat Pump?

In short, ASHPs work by transferring air from one place to another. Heat from the air is gathered up and taken into a loop of refrigerant fluid, followed by being transferred to a compressor, providing you with hot air.

The pump is extremely clever and will transfer all this heat through different pipes, whether this being multiple radiators throughout your home or underfloor heating.
The ASHP is not just for heating up your home either, during the warmer months your pump will grab onto heat in the air within your home and release it back outside, leaving you with cooler summer months and warmer winter nights.

What are the pros of using an Air Source Heat Pump?
  • Less space is required internally for an ASHP. Although external space is still required, if you find yourself limited to space inside, this could be an ideal solution for you. No groundworks or external collector pipework is required, meaning an ASHP can be more affordable than a Ground Source Heat pump.
  • A cheaper alternative for heating your home and can be even cheaper with access to government grants.
  • An ASHP has an excellent life span.
  • It can be used for both heating and cooling of the home. Great effective use of using natural energy to power your home.
What are the cons of using an Air Source Heat Pump?

For an ASHP to work effectively, you must first have an already well-insulated home. For example underfloor heating or well-insulated loft space and walls. There can often be a small noise when using an ASHP.

How long will it take for my Air Source Heat Pump to be installed?

The ASHP is much easier to install than the Ground Source Heat Pump as, unlike the GSHP, no digging is required. As a result of this, the installation process is much simpler and often quicker.

What are the types of properties an ASHP is and isn't suitable for?

To begin with, your home must already be well insulated. ASHPs typically have a lower heat supply than boilers, therefore an already well-insulated home will work best.

Smaller properties are ideal for this pump, however, space must be available for the external unit. If you live within a larger property, more external units can be installed, however, this will have an overall effect on the costs.

Comparison of traditional heating methods

Compared to a gas or electric heating system, an ASHP is a renewable alternative to heating your home, lessening your carbon footprint and allowing you to save money on your utility bills.

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Lodge Lane – ASHP

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lodge farm

February 27th 2024

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Your Guide to an Air Source Heat Pump

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