Image description
A side-by-side comparison of a gas boiler and an air source heat pump. Arrows moving into and out from both indicate that, although both receive 1kWh, the gas boiler produces 0.9kWh and the ASHP produces 3kWh.
The description below is for an image or graphic that appears in the page: The Devon Retrofit Guide
A side-by-side comparison of a gas boiler and an air source heat pump. Arrows moving into and out from both indicate that, although both receive 1kWh, the gas boiler produces 0.9kWh and the ASHP produces 3kWh.