Keston moves into heat pumps

Keston has entered the air-source heat-pump market with the introduction of Airgen, designed specifically for UK applications. Hot water is produced at up to 65°C without the need for a supporting immersion heater. Hot water for radiators and underfloor heating systems can be supplied at temperatures from 35 to 55°C.

‘There are three models with outputs of 4.5, 9 and 12 kW. The two larger units can be banked for light-commercial applications. To optimise efficiency, all units have dual-temperature operation. Larger units have twin scroll compressors to further maximise efficiency.

‘At temperatures below 0°C, a high-efficiency condensing boiler is cheaper to operate, so Airgen is available as part of a bivalent heating pack, including the 97% efficient Qudos 28S which is purpose built to interlock with a renewable-energy source. Airgen provides heating for 85% of the time, with the boiler making up the balance on colder days.

‘R134a is the refrigerant.

For more information on this story, click here: Aug 09, 164
Related links:
Related articles:

modbs tv logo

CHAS urges construction industry to embrace Common Assessment Standard following data sharing agreement roll out

CHAS was the first Recognised Assessment Body to offer the Common Assessment Standard which has fast become the industry’s gold standard for pre-qualification. 

R&D spending in construction sector rose 7.9% last year, despite the pandemic

Construction sector R&D spending hit £368m last year, according to latest ONS data