All you need to know about air source heat pumps.

An air source heat pump (ASHP) is a renewable energy technology that can be used to heat your home and provide hot water. ASHPs work by extracting heat from the outside air and transferring it into your home, using a refrigerant cycle that is similar to the one used in your refrigerator.

Here are some important things you need to know about air-source heat pumps:

1. Types of air source heat pumps: There are two main types of ASHPs – air-to-water and air-to-air. Air-to-water heat pumps are most commonly used for heating homes and providing hot water, while air-to-air heat pumps are typically used for space heating only. In some cases, air-to-water systems can be used with your current radiators and water tank. Sometimes these may need to be upgraded.
2. Efficiency: ASHPs are highly efficient and can provide up to three times more energy than they consume. This means that for every 1 kWh of electricity used to power the pump, you can get up to 3 kWh of heat energy. Installing solar PV will further improve their efficiency for the ideal solution.
3. Installation: ASHPs are easy to install and can be fitted in both new and existing homes. The installation process usually takes a few days and involves fitting the outdoor unit, indoor unit, and pipework.
4. Maintenance: ASHPs require minimal maintenance, and most manufacturers recommend an annual service to keep the system running efficiently.
5. Cost: The cost of installing an ASHP will depend on a number of factors, such as the size of your home, the type of system you choose, and your location. However, it is generally more expensive to install an ASHP than a conventional heating system. However, over time, the energy savings can help offset the initial investment.
6. Noise: Some ASHPs can be noisy, especially the outdoor unit. However, many modern systems are designed to be quieter and may incorporate features such as noise-reducing covers or vibration-damping mounts. This forms part of an assessment to ensure suitability. It sounds a bit like the fridge or freezer in your home.
7. Climate: ASHPs work best in mild to moderate climates, and their efficiency can be affected by extreme temperatures. In colder climates, it may be necessary to use a backup heating system during very cold periods. The climate of the UK is taken into account when designing the right system for a home, however, the UK climate is generally very good for ASHPs.
8. Grants: In some countries, there are grants and subsidies available to help with the cost of installing an ASHP. It is worth checking with your local government or energy provider to see if you are eligible for any financial assistance. The UK Government is also helping with this through ECO4 funding. More information is available on my website on how air source can be installed on a fully funded basis. https://craigmonks.co.uk/

What should I consider before installing an air source heat pump in my home?

Before installing an air source heat pump in your home, it’s important to assess whether your property is suitable and to make any necessary improvements. Here are some things you should check before installing an ASHP:

1. Insulation: Your home should be well insulated to ensure that the heat generated by the ASHP doesn’t escape through walls, windows, and roofs. Consider adding insulation to your walls, floors, and roof if necessary.
2. Heat loss: It’s important to measure the heat loss from your home to ensure that the ASHP you choose is appropriately sized. A qualified installer can perform a heat loss calculation to determine the correct size for your property. The performance of an ASHP can be affected by a number of factors, such as the outdoor temperature, humidity levels, and the size of your property. It’s important to choose a system that is appropriate for your climate and property size to ensure optimal performance.
3. Radiators: If you’re replacing an existing heating system, make sure your radiators are the correct size and type for use with an ASHP. Low-temperature radiators or underfloor heating may be required to get the best performance from your system.
4. Electrical supply: ASHPs require an electrical supply, so you should check that your existing electrical system is adequate and that you have enough capacity for the additional load.
5. Outdoor space: You will need an outdoor space to install the ASHP unit. Check that you have a suitable location that is close to the indoor unit and has good access for installation and maintenance.
6. Noise: ASHPs can be noisy, especially the outdoor unit. Check that your neighbours won’t be disturbed by the noise and consider using a noise-reducing cover or mounting system if necessary.
7. Planning permission: In some areas, you may need planning permission before installing an ASHP. Check with your local planning authority before proceeding with the installation.
8. Grants and incentives: Finally, check if there are any grants or incentives available in your area to help with the cost of installing an ASHP. This can vary depending on where you live, so it’s worth checking with your local government or energy provider. Ofgem is a good place to look https://www.ofgem.gov.uk/environmental-and-social-schemes/energy-company-obligation-eco

There is a lot to consider but it is very important to either work through this list or ask for professional help from a retrofit assessor or coordinator like me. ASHP systems will always work perfectly well in the right type of home.

Is there anything else I need to know about air-source heat pumps?

Yes, there are a few more things you should know about air-source heat pumps before making a decision to install one in your home:

1. Running costs: While ASHPs can be more expensive to install than traditional heating systems, they can help to reduce your energy bills over time. The actual running costs will depend on a number of factors, such as the size of your property, the efficiency of the system, and the price of electricity in your area.
2. CO2 emissions: ASHPs are a renewable energy technology and can help to reduce your carbon footprint. However, the amount of CO2 emissions saved will depend on the efficiency of the system and the source of the electricity used to power it. Installing solar PV is a great way of reducing cost and CO2 even more.
3. Backup heating: In colder climates, it may be necessary to use a backup heating system during periods of extreme cold or when the ASHP is not operating at optimal efficiency. This can help to ensure that your home remains warm and comfortable throughout the year.

Overall, air-source heat pumps can be an effective and efficient way to heat your home and reduce your carbon footprint. However, as with any home heating system, it’s important to carefully consider your options and seek professional advice before making a decision.

• Air Source Heat Pumps
• boilers
• ECO4
• Energy Performance Certificate
• Funding
• Insulation
• Loft Insulation
• retrofit coordinator
• Room in Roof insulation
• Solar Panels
• Solid wall insulation