Solar Panels and Battery Storage: A Homeowner's Guide
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Air source heat pumps are now one of the main ways to heat a home without burning gas or oil. But they work differently from a boiler, and whether one is right for you depends on your home and how you live in it. This guide gives a balanced view.

An air source heat pump takes heat from the outside air, even in cold weather, and uses a compressor to raise it to a useful temperature for your radiators, underfloor heating and hot water. It runs on electricity, but because it is moving heat rather than generating it, it can deliver more heat energy than the electricity it uses.
Heat pumps work best running at lower flow temperatures for longer periods, rather than blasting heat in short bursts like many boilers. That means the house needs to be able to hold its heat, and radiators sometimes need to be larger to give the same comfort at a lower temperature. A good design starts with a heat loss calculation for each room.
Well-insulated homes, new builds and extensions are natural candidates. Many older homes can also work well, but insulation, draught-proofing and radiator sizing matter more. You will also need space for the outdoor unit and usually for a hot water cylinder.
Running costs depend on how efficient the system is in your home, how it is designed and set up, your electricity tariff and how you use it. Some energy suppliers offer tariffs designed for heat pumps or for cheaper off-peak electricity. We will give you honest advice for your property rather than headline figures.
A heat pump runs on electricity, so solar PV and battery storage can help cover some of its demand, especially for hot water and in spring and autumn. Margav Energy installs solar, battery storage and heat pumps, so we can look at the whole system together.
Government schemes, such as the Boiler Upgrade Scheme in England, have offered grants towards heat pumps. Schemes and eligibility change, so check current rules on GOV.UK and ask any installer how they meet the scheme requirements before you commit.
Many air source heat pump installations on houses are permitted development, subject to conditions on size, siting and noise. Your installer should check this as part of the design.
For many homes, a well-designed heat pump is a comfortable, lower-carbon way to heat the house. For others, insulation or other upgrades should come first. The right answer comes from looking at your property, not from a sales pitch.
Heat pumps work best in homes that keep their heat. Before an installation, a heat loss calculation is carried out room by room to size the heat pump and check whether the existing radiators are big enough. Many homes need some radiators upgrading so the system can run at lower flow temperatures, which is where heat pumps are most efficient.
Insulation, draught-proofing and good controls all make a difference. In older homes, improving loft insulation or upgrading some windows before fitting a heat pump can mean a smaller unit and lower running costs.
The outdoor unit needs free airflow and a solid, level base, and it should be placed with neighbours in mind because it makes some noise when running. A hot water cylinder is usually needed, so you will need space for one indoors. Your installer will discuss positions with you and check whether planning permission or permitted development rules apply.
Government schemes, such as the Boiler Upgrade Scheme in England, can help with the cost of a heat pump. These schemes usually require an MCS-certified installer. Check the current rules and amounts before you commit, as they change from time to time.
Margav Energy, part of Staff4dshire Group, installs air source heat pumps, heating systems, solar PV, battery storage, electrics and air conditioning across Rugeley, Stafford, Lichfield, Uttoxeter and Staffordshire.
Yes, they extract heat from outside air in cold weather. Proper design for your home is what keeps it comfortable.
Sometimes. Some radiators may need upsizing to work at lower flow temperatures.
Yes. Margav Energy installs both, and they can work well together.
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