Would a heat pump save me money?

Posted 10.03.25

• Uncategorised

By David Jones

Yes, air source heat pumps (ASHPs) can save money over time, but the savings depend on several factors, including your current heating system, energy efficiency of your home, and the local cost of electricity vs. gas or other heating fuels. Here’s a breakdown of how they work and how they can lead to savings:

1. Efficiency:

• Air source heat pumps are highly efficient because they don’t generate heat; they transfer it. For every unit of electricity used, an ASHP can produce 3–4 units of heat (in ideal conditions). This makes them significantly more efficient than traditional electric heating systems, like electric radiators or heaters.
• In other words, ASHPs can provide 3–4 times the amount of heat for the same amount of electricity you use, compared to conventional electric heaters.

2. Lower Energy Bills:

• Since ASHPs use less electricity than traditional electric heating, they reduce energy bills compared to using electric resistance heating (which is often the most expensive form of heating).
• However if your replacing a mains gas boiler for an source heat pump, the savings may be less as mains gas is still around a ¼ of the cost of electricity.

3. Rising Gas and Oil Prices:

• If you’re currently using gas or oil for heating, you might be paying less for those fuels than electricity, but gas and oil prices have been quite volatile and can increase over time.
• With an ASHP, you’re using electricity, which could be more stable in price (depending on your provider). Plus, electricity costs can be offset if you have a solar panel/ battery storage system.

4. Maintenance and Longevity:

• Air source heat pumps are low-maintenance compared to other heating systems like boilers or furnaces. They don’t require the same level of servicing or potential repairs, meaning lower maintenance costs.
• An ASHP typically lasts around 15–20 years, and with proper maintenance, they can continue to perform efficiently over their lifetime.

5. Government Incentives:

• In many countries, including the UK, government incentives like the Boiler Upgrade Scheme which is a grant for £7500 installing an ASHP. This can make the installation more affordable and improve your return on investment. The grant is available for all homeowners and is not means tested.

7. Upfront Costs and Payback Period:

• The initial installation cost of an ASHP is typically between £2,000 and £6,000 (after the BUS grant) depending on your home size and the system chosen. However, once installed, the running costs are generally lower than traditional heating methods.
• The payback period can range from 5–10 years, depending on your energy usage, the efficiency of your home, and the type of heating system you’re replacing.

8. Environmental Impact:

• If you’re concerned about the environment, air source heat pumps are much cleaner than fossil fuel-based systems, as they reduce your carbon footprint. If you’re using green electricity (from solar, wind, or hydro), the environmental benefits are even greater

Summary

Air source heat pumps can save you money in the long term by providing efficient heating and cooling while using less energy compared to traditional systems. The savings will depend on your current heating system, energy costs, and how much you use your heating and cooling systems. Though the upfront installation costs are relatively high, the long-term savings from lower energy bills, government incentives, and reduced maintenance costs can make it a worthwhile investment.