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Last updated: 12 March 2018

Air Source Heat Pumps Explained

All the Information You Need on Air Source Heat Pumps

Are you looking for an efficient yet environmentally friendly heating and cooling solution for your home for the winter and summer months? Then an Air Source Heat Pump is the answer.

Fill out the form to get up to four personalized quotes on the right air source heat pump for you.

What Is an Air Source Heat Pump?

Air source heat pumps (ASHPs) transfer heat using air from outside to the inside of an office, home, or any building with such a system. This process is comparable to how a refrigerator works as it gets heat from the outside air and then uses it to cool the inside of the refrigerator. The heat generated by an air source heat pump can then be used to heat radiators, underfloor heating systems or warm the air in your home. Heat pumps renew the energy produced naturally even though they require large quantities of electricity to run initially.

How Do Air Source Heat Pumps Work?

Air source heat pumps are placed outdoors usually at the back or the side of a house or building. The kind of house you have or building space and the amount of outdoor space available determines where it should be placed. It requires a sufficient supply of electricity allowing it to convert heat from the air absorbed, thus allowing the pump to reach high temperatures. Although it uses a considerable amount of electricity to run, it requires less energy to produce heat.


(Source: Danfoss Heating)

Types of Air Source Heat Pumps

  1. Air-to-water heat pumps absorb heat from outside air and feed into your central heating system. This heat is not as hot as that that would be generated from a boiler system so larger radiators or underfloor heating must be installed in order to reach desired levels of heating. Thermodynamic water heating may also be used for providing hot water for domestic use.
  2.  Air-to-air heat pumps use heat from the outside air and then feed in through the house using fans. For the warmer times of the year, particularly the summertime from June to August, air to air systems work like air conditioners to provide you with cold air.

Why Choose an Air Source Heat Pump?

  • Financial Support – Receive payments through the UK’s Renewable Heat Incentive (RHI) for generating your own heat
  • Savings Cost – Cheaper than ground source heat pumps, conventional electric heating systems, oil or liquid petroleum gas (LPG) driven systems
  • Low Carbon Emissions – Produces less carbon dioxide as they can run using solar or wind power allowing for a low carbon footprint as much as 5-10 tonnes compared to other conventional heating systems
  • Home Heating and hot water – The energy produced from the air pump can heat your home and also hot water that can be stored in a water tank for later use when needed
  • Easy Installation – It only requires a few days to install
  • Low Maintenance – Compared to other home heating systems maintenance is minimal
  • Low Temperatures – It can work in temperatures as low as -20ºC

Choosing the Right Air Source Heat Pump

Finding the right air source heat pump can be overwhelming as there are many to choose from. Though, what matters is the right air source heat pump that fits your specific needs. So, when considering the right air source heat pump, a few things must be factored such as:

  • Space – Air source heat pumps require a lot of space, it is essential that the surrounding outdoor area of your home has large enough space for installation.
  • Insulation – Your home must be well insulated to ensure the air heat pump is functioning optimally
  • Fuel Replacement – No need for oil and gas driven heating systems
  • Type of Home Heating System - Air source heat pumps work best with underfloor heating systems or radiator based heating
  • Cost of Heat Pumps – Average cost runs from £3,000 – £10,000 but additional costs vary depending on the size of your home, the type of insulation already installed, and goal temperatures within your home

Things to Consider:

When choosing an air source heat pump as a cooling system in your home, there are certain drawbacks:

  • Efficiency  – Not as efficient as ground source heat pumps
  • Electricity  –  It is essential to have constant supply of electricity to power an air source heat pump 
  • Carbon Emissions – Although air source heat pumps have low carbon footprints, they are not completely carbon free if their main energy input is electricity

Read More: Heat Pump Brands

Interested in owning an air source heat pump? Fill out the form on the right to get up to four quotes tailored to your needs. It’s fast, free and no obligation necessary.