• An Ambient report shows UK households could save up to £450 a year by switching from gas boilers to heat pumps, with savings higher for homes with better insulation and glazing.
  • Heat pumps are 3-5 times more efficient than gas boilers, leading to lower energy bills even with higher electricity prices.
  • Ambient will launch a Cost Calculator tool to help households estimate savings from switching to heat pumps.

Upgrading to a heat pump instead of replacing your boiler could save 50-65% of a household’s energy bills, according to the Ambient Cost Calculator 

Ambient’s latest report reveals how UK households could save hundreds of pounds by switching from gas boilers to heat pumps. The study uses data from over 40,000 homes and calculates potential savings based on real-world energy tariffs and efficiency.

In 2023, about 1.8 million homes in the UK replaced their gas boilers. However, many of these homes could have saved up to £330 a year in energy costs by choosing a heat pump instead. Moreover, semi-detached houses save as much as £450 annually. The savings are based on well-installed systems coupled with the appropriate energy tariffs. The figures were determined using Jan Rosenow’s Cost Calculator.

The report shows that heat pumps are far more efficient than gas boilers. Gas boilers typically run at 85% efficiency, while heat pumps can reach 300% to 500% efficiency, depending on conditions. Even with higher electricity prices, switching to a heat pump can still cut energy bills.

Of course, homes with up-to-date insulation and good glazing will benefit the most. About 73% of the households studied had double or triple glazing. Find out more about the effects of heat pumps on specific home types in the full report, here.

The findings highlight a big opportunity for homeowners. Many could switch now to save money while reducing their carbon footprint. The report also re-iterates the fact that Gas Safe Register data can play a key role by identifying homes with ageing boilers. This could help stakeholders encourage more homeowners to make the switch. With data on our side, the entire transition becomes far more achievable. 

To help, Ambient will soon launch the Cost Calculator tool, helping households estimate how much they could save by transitioning to heat pumps. This tool will become a valuable asset for any homeowner interested in making the switch.