Air Source Heat Pump

Heat Pumps

energy from earth

A Heat Pump operates in the following way

  • The source of heat, which can be outside air or a water mix which is contained within ground collectors, is either blown or pumped over the heat exchange surface of the outside part of the heat pump.
  • This heat (although cold in comparison to a home’s internal air) is warm enough to cause the special refrigerant liquid to evaporate and turn into a gas.
  • This gas is then put through a compressor which increases the pressure of the gas, a factor that causes its temperature to rise. For example you may have noticed that a bicycle pump, gets warm when it is used, the gasses in a heat pump experience the same temperature rise due to compression.
  • The gas (now heated) is passed over the internal heat exchange surface. This heat can then be either blown around a property or be transferred into a home’s central heating or hot water system.
  • The gas falls in temperature as the heat is transferred into the home and it subsequently returns to a liquid state.
  • The refrigerant returns to the outside heat exchange surface and the process repeats itself until sufficient heat is passed into the home.
how air source heat works

How Green is Air Source?

An air source heat pump system can help to lower your carbon footprint as it uses a renewable, natural source of heat – air. The amount of CO2 you'll save depends on the fuel you are replacing. For example, it will be higher if you are replacing electric heating rather than natural gas. A heat pump also requires a supplementary source of power, usually electricity, to power the heat pump, so there will still be some resulting CO2 emissions.

air source heat pump

low Temps, Longer Periods

Unlike gas and oil boilers, heat pumps deliver heat at lower temperatures over much longer periods. During the winter they may need to be on constantly to heat your home efficiently. You will also notice that radiators won't feel as hot to the touch as they might do when you are using a gas or oil boiler.

air source energy benefits

Air Source Benefits

  • Lower fuel bills, especially if you are replacing conventional electric heating.
  • Potential income through the UK government’s Renewable Heat Incentive (RHI)
  • Lower home carbon emissions, depending on which fuel you are replacing
  • No fuel deliveries needed
  • It can heat your home as well as your water
  • Minimal maintenance required
  • It can be easier to install than a ground source heat pump.

Home Suitability

Is an Air Source Heat Pump suitable for me?

To tell if an air source heat pump is right for you, there are a few key questions to consider:

  • Do you have somewhere to put it? You'll need a place outside your home where a unit can be fitted to a wall or placed on the ground. It will need plenty of space around it to get a good flow of air. A sunny wall is ideal.
  • Is your home well insulated? Since ASHP works better when producing heat at a lower temperature than traditional boilers, it's beneficial that your home is well insulated for the heating system to perform at it's more efficient.
  • What fuel will you be replacing? The system will pay for itself quicker if its replacing a Oil, LPG or large usage Gas system.
  • What type of heating system will you use? Air Source Heat Pumps can perform better with underfloor heating systems or warm Air Heating with larger radiators fitted in the house.
  • Is the system intended for a new development? No, these systems can be used on retro fits on any home style. Including mobile homes, & homes that are pre 1900's.

Heat Pump Benefits

New Source of Income

Using renewable energy to heat your home provides access to a government backed incentive - the Renewable Heat Incentive (RHI). You will be paid quarterly over a period of 7 years. These payments are index-linked and will rise with inflation.

Increase Home Value

Energy efficiency is now a key factor influencing the sale price of homes in England, with buyers willing to invest more in a property if they know it will cost less to run in the future. The DECC (Department of Energy and Climate Change) published a report stating that energy improvements to your home could increase its value by 14% on average and up to 38% in some parts of England - potentially adding thousands of pounds to its final sale price.

Reducing Heating Bills

Air Source Heat Pumps provide heating and hot water from one single source - the air! The heat extracted from the air is always being naturally renewed, eliminating the need for purchase and delivery of fuel. This serves to lower your fuel bills, especially if the 'heat pumps system replaces a conventional Oil, LPG heating system.

Easy to Install

The installation of an Air Source Heat Pump isn’t complicated, and you can choose where to put it outside your home. Most homes should be able to accommodate an Air Source Heat Pump. Installation often takes no more than 2 days.