The new propane heat pump has a coefficient of performance of up to 4.9 and can reportedly reach a supply temperature of up to 55°C.
British heat pump supplier Grant Engineering has unveiled a propane (R290) air source heat pump for residential applications.
The new product is available in five versions with a heating capacity from 4 kW to 15 kW. “The Aerona 290, which will be supplied alongside Grant’s award-winning Aerona models, will be available to order from October, with 4kW, 6.5kW and 9kW units available first and larger capacities of 12kW and 15.5kW in early 2025 “, the manufacturer said in a statement.
The smallest system measures 803mm x 1,155mm x 422mm and weighs 101kg, while the largest system measures 1,365mm x 1,155mm x 425mm and weighs 184kg. The mass of R290 is 0.61 kg and the sound power level is between 48 dB and 53 dB.
The systems can reportedly achieve a coefficient of performance (COP) of up to 4.9.
All models have an energy rating of A+++ at a supply temperature of 35 C. Their performance is rated at an air temperature of -5 C and a water flow temperature of 55 C, with all systems said to perform in extreme temperatures from -25 C to 35 c.
The new heat pumps also feature a built-in PWM circulation pump, dual DC rotary compressor, low and high pressure safety regulators, discharge temperature safety regulators and factory-fitted automatic air vent, and a 3 bar pressure relief valve.
“The systems use an electronic expansion valve to precisely control the flow of R290 refrigerant to the evaporator, as well as a four-way valve to divert refrigerant flow for defrost,” the manufacturer explains.
The new products have a 7-year warranty.
“Designed for use with the Aerona Smart Controller, the Aerona 290’s operation can be easily managed through simple installation and commissioning and then innovative operation,” the company said.
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