Air Source Heat Pumps

So how does it work

Very simply it works like a refrigerator but in reverse the heat pumpuses the vapour compression cyclewhich has the ability to move heat from one space to another. The main components in the air source heat pump are the compressor, the expansion valve and two heat exchangers (an evaporator and a condenser.

In Operation

Air source heat pumps are ideal for use in a variety of house sizes or styles and its carefully developed control system is designed to work perfectly to provide hot water to either traditional radiators or under floor heating systems.

Capacity control in radiator systems, with a fixed flow temperature is controlled by Thermostatic Radiator Valves (TRV). These operate by turning the radiators on and off to maintain the desired comfort level. Similarly, with underfloor heating working on control thermostats, the heat pump will vary the flow temperature automatically, based on the ambient temperature to keep the house warm. Operating at these lower flow temperatures can significantly improve the overall system efficiency.


The Heat Pump system is designed to meet the demands of today’s domestic hot water and heating requirements.

Simple to install, cost effective for the end-user and with outstanding energy efficiency, an Heat Pump heating system is ideal for designers, installers and users.

  • Up to 50% reduction in CO2 emissions
  • Helps to achieve Level 3 of the Code for Sustainable Homes
  • Easy to install – self-contained unit only requiring water and electric connections
  • No gas supply, flues or ventilation required
  • No need for groundwork or external pumps
  • Single phase power supply with a low starting current
  • 3 phase option available (14kW)
  • Low maintenance
  • Even higher savings and CO2 reductions for homes with underfloor heating systems*
  • Designed for domestic use
  • Low noise – market leading 45dBA at 1 metre**
  • Reduced VAT to 5% for domestic applications
  • For self builds and refurbishment projects, eligible for the RHI payments (renewable Heat Incentive)