The UK is looking to improve the carbon footprint and replace gas boilers with air source heat pumps or ground source heat pumps.
Ground source heat pumps need a lot of space to be able to install into households in the UK.
Air source heat pumps cost 2-3 times the price to replace a gas boiler, but the running costs are much cheaper.
Gas boiler replacements are still the most popular option for boiler companies to upgrade in the UK.