Grant UK has developed the Aerona HE range of air source heat pumps. The brief for the new range was simple - bigger single phase outputs, higher efficiencies at lower operating temperatures and quieter noise levels, whilst maintaining the tried and tested features of the existing Aerona range. To achieve better COPs the Aerona HE was designed with larger evaporator surface areas, increasing the amount of air through the unit. The fans run at lower speeds and this coupled with the improved internal insulation has successfully decreased noise levels. The HE models also use R410a refrigerant, which allows the unit to operate at lower ambient temperatures.
Grant Aerona heat pumps are air to water units which utilise heat captured from the air in wet heating system radiators or underfloor heating. The process uses the same vapour/compression cycle that extracts heat in a domestic fridge. A refridgerant with a low boiling point is exposed to external air temperatures in an evaporator. The liquid boils off to a gas and absorbs the latent heat energy of the air. The gas is then compressed increasing the heat content in the refridgerant, before passing through a heat exchanger where it condenses back to a liquid state while transferring the heat to the water of the heating system. The liquid refridgerant is then re-circulated through the evaporator and the cycle is repeated.
Full details of the Grant Aerona HE range of air source heat pumps, along with the wide range of exciting heating products available from the company, including their high efficiency Vortex range of oil-fired boilers, the Grant Solar range of solar thermal systems, the Grant range of Wave high efficiency direct and indirect hot water storage cylinders, and the company’s wood pellet biomass boiler range can be found at www.grantuk.com or simply call 01380 736920 to talk to the friendly specialists there, waiting to help you.
