Heat Pumps
Ask Us About Heat Pumps
3–4 units of heat for every unit of electricity — dramatically lower bills when paired with solar.
How it works
Efficient, low-carbon heating for your home
Air source heat pumps extract heat from the outside air — even in cold weather — and use it to heat your home and hot water. For every unit of electricity consumed, a modern heat pump delivers 3–4 units of heat, making them far more efficient than a gas boiler.
When paired with a solar PV system and battery storage, a heat pump can run almost entirely on free energy generated by your own roof — dramatically cutting your heating bills and your carbon footprint at the same time.
Our heat pump installations are carried out by NAPIT-registered engineers, and we handle the documentation needed to qualify for the government's Boiler Upgrade Scheme (BUS) grant of up to £7,500 — a significant contribution towards the cost of your new system.
We work in partnership with Peak Energy Products, who manufacture and install heat pumps on our behalf, ensuring the highest quality equipment and workmanship on every project.
Ask about heat pumps3–4×
Heat output per unit of electricity
£7,500
Boiler Upgrade Scheme grant available
25 yr
Typical heat pump lifespan
NAPIT
Registered installation — grant eligible
What we offer
Everything you need for low-carbon heating
Air source heat pumps
Modern, efficient heat pumps that extract warmth from outside air to heat your home and hot water year-round.
Paired with solar & storage
Combine your heat pump with solar panels and battery storage to run your heating on free, self-generated energy.
Grant-eligible installation
Our installations are carried out to the standards required for the Boiler Upgrade Scheme grant of up to £7,500.
Boiler Upgrade Scheme grant
Claim up to £7,500 from the government's BUS grant to offset the cost of your new heat pump system.
Our partner
In partnership with Peak Energy Products
Peak Energy Products manufacture and install heat pumps on our behalf. Their expertise in heat pump technology, combined with Squirrel Energy's solar and storage knowledge, means your entire low-carbon energy system is designed and installed to the highest standard — by one trusted team.
Our process
From survey to warm home — how heat pump installation works
A heat pump installation is a significant project that requires careful design. We carry out a full heat loss survey of your property before specifying any equipment, so your system is correctly sized and your Boiler Upgrade Scheme grant application is fully supported.
01
Heat loss survey
We carry out a room-by-room heat loss calculation to BS EN 12831, assessing insulation levels, window areas, air permeability and thermal bridging. This determines the heat pump capacity required and identifies any insulation improvements that would improve system efficiency.
02
System design
We design the full system including heat pump unit, hot water cylinder, pipework, controls and any radiator or underfloor heating modifications. We also design the integration with your solar PV and battery storage system if applicable, to maximise self-consumption of free electricity.
03
Grant application
We submit your Boiler Upgrade Scheme grant application on your behalf. The £7,500 grant is deducted from your invoice — you pay only the net cost. We handle all the paperwork and liaise with Ofgem throughout the process.
04
Installation & commissioning
Peak Energy Products carry out the full installation to the required standards. On completion, the system is commissioned, tested and handed over with full documentation and a manufacturer warranty registration.
Heat pump and solar
Why pairing a heat pump with solar is the most cost-effective low-carbon heating solution
A heat pump is an electrical appliance. Unlike a gas boiler, which burns fuel to generate heat, a heat pump moves heat from the outside air into your home using a refrigeration cycle — consuming electricity in the process. This means the running cost of a heat pump is directly linked to the price of electricity you pay.
If you generate your own electricity from solar panels, you can run your heat pump on free solar energy during the day — dramatically reducing your heating bills. A 4kWp solar array in Lancashire generates around 3,400kWh per year. A heat pump with a seasonal COP of 3.0 needs around 4,000kWh of electricity to deliver 12,000kWh of heat. In summer and shoulder seasons, solar can cover a significant proportion of that electricity demand at zero cost.
With a battery storage system, you can store daytime solar generation and use it to power your heat pump in the evening and overnight — extending the period of free heating further. We design solar, battery and heat pump systems as an integrated whole, optimising the controls so the heat pump runs preferentially on solar and stored energy before drawing from the grid.
The Boiler Upgrade Scheme
Everything you need to know about the £7,500 BUS grant
The Boiler Upgrade Scheme is a government grant administered by Ofgem that pays £7,500 towards the cost of an air source heat pump installation in England and Wales. It is available to homeowners replacing a fossil fuel heating system — gas boiler, oil boiler or direct electric heating. You do not need to apply yourself: we apply on your behalf and deduct the grant from your invoice.
To be eligible, your property must have a valid Energy Performance Certificate (EPC) with no outstanding recommendations for loft or cavity wall insulation. If your EPC has such recommendations, you will need to address them before the grant can be claimed — we can advise on this as part of the heat loss survey. Properties without a current EPC will need one before we can proceed.
The BUS grant is available until March 2028 and is subject to annual budget limits. We recommend applying sooner rather than later to secure your place in the queue. Contact us to check your eligibility and get a heat loss survey booked — the survey is the first step in the grant process and is carried out at no obligation.
Common questions
Air source heat pumps — your questions answered
What is the Boiler Upgrade Scheme and how much can I claim?
The Boiler Upgrade Scheme (BUS) is a government grant that pays £7,500 towards the cost of an air source heat pump installation. It is available to homeowners in England and Wales who are replacing a fossil fuel heating system. Squirrel Energy can apply for the grant on your behalf — you simply pay the net cost after the grant is deducted.
Will a heat pump work in an older or poorly insulated home?
Heat pumps work best in well-insulated homes, but modern systems can perform effectively in a wide range of properties. We carry out a full heat loss survey before recommending a system, and we will advise honestly if your home needs insulation improvements first. In many cases, a heat pump can be installed alongside a phased insulation programme.
How does pairing a heat pump with solar panels save money?
A heat pump is an electrical appliance — it runs on electricity rather than gas. If you generate your own electricity from solar panels, you can run your heat pump on free solar energy during the day. With a battery storage system, you can store daytime solar generation and use it to power your heat pump in the evening and morning, dramatically reducing your heating bills year-round.
What is the coefficient of performance (COP) of a heat pump?
The COP measures how efficiently a heat pump converts electricity into heat. A COP of 3 means the system produces 3kWh of heat for every 1kWh of electricity it consumes. Modern air source heat pumps typically achieve a seasonal COP of 2.5 to 4.0, making them two to four times more efficient than a direct electric heater and significantly more efficient than a gas boiler.
Do I need to replace my radiators when installing a heat pump?
Not necessarily. Heat pumps operate at lower flow temperatures than gas boilers — typically 45 to 55 degrees C rather than 70 to 80 degrees C. This means existing radiators may need to be upsized to deliver the same heat output. We assess your existing radiators as part of the heat loss survey and advise on which, if any, need replacing. Underfloor heating is ideal for heat pumps and requires no modification.
Who is Peak Energy Products and why do you partner with them?
Peak Energy Products are specialist heat pump manufacturers and installers based in the UK. Their expertise in heat pump technology complements Squirrel Energy solar and storage knowledge, allowing us to offer a fully integrated low-carbon energy system — solar, storage and heating — designed and installed by one trusted team. This joined-up approach means your system is optimised as a whole, not as separate components.
Get started
Ready to switch to a heat pump?
Get in touch to discuss your home's heating requirements. We'll advise on the right system, help you claim the Boiler Upgrade Scheme grant and design a solar-integrated solution that maximises your savings.