No flame, no gas, no flue. It works like a fridge in reverse — pulling warmth out of the outside air, even in winter, and moving it indoors.
A fan draws outside air across a refrigerant coil, which absorbs the heat in it — even at 0°C, air still holds usable warmth.
A compressor concentrates that warmth, raising the refrigerant's temperature sharply, using a small amount of electricity.
The heat passes through a heat exchanger into your wet central heating system and hot water cylinder.
Warmed water circulates through radiators or underfloor heating at a lower, steadier flow temperature than a boiler.
That ratio is the coefficient of performance, or CoP. A well-fitted heat pump typically runs a CoP of 3 to 4 across a Lincolnshire winter — a gas boiler never exceeds 1.
We size the unit, radiators and cylinder to your specific home during the survey, not from a table.
A domestic heat pump runs at roughly 40–60 decibels at one metre — similar to a fridge humming, or quieter. We site the outdoor unit away from bedroom windows and boundary fences during the survey.
Modern units are tested and rated down to -15°C or -25°C depending on model. Lincolnshire's coldest winter days sit well within that range.
Often, yes — heat pumps run at lower flow temperatures, so some homes need larger radiators or underfloor heating in one or two rooms. We confirm exactly what's needed during the survey, and price it in upfront.
Most straightforward installs take two to three days: outdoor unit, indoor cylinder and controls, then commissioning. Retrofits with pipework or radiator changes can take a day or two longer.