Collect heat
Outside air warms refrigerant in a heat exchanger—even when the air feels cold.
HOW HEAT PUMPS WORK
Move the heat.
Feel the difference.
A heat pump uses electricity to move heat from outdoors into your home. Think of a refrigerator’s cooling cycle working to warm your rooms instead.
Lift the temperature
An electric compressor raises the refrigerant’s pressure and temperature.
Warm your home
The hot refrigerant transfers energy into water or indoor air.
Start again
Pressure reduces through an expansion device, ready for the refrigerant to collect more heat.
AIR-TO-WATER / ECODANHeat for radiators
Heat for radiators
and hot water.
Warm water circulates through radiators or underfloor heating. A suitable cylinder stores domestic hot water. The system must be designed for your home’s heat demand.
AIR-TO-AIR / MITSUBISHI ELECTRICWarmth delivered
Warmth delivered
through indoor units.
Indoor units distribute warm air. Reversible models can cool too. A separate hot-water solution is normally needed.
Efficiency is a ratio—not a promise.
For illustration, a coefficient of performance (COP) of 3 means 1 kWh of electricity delivers 3 kWh of heat at those operating conditions. Performance varies with outdoor temperature, system design and settings; seasonal efficiency is more useful for annual running costs.
A room-by-room heat-loss calculation, suitable emitters and good controls help the system work effectively. Bill savings depend on the heating being replaced and energy tariffs.
Further reading: Energy Saving Trust — how heat pumps work. Product suitability requires a survey.