Vaillant aroTHERM Plus
One of the most efficient heat pumps on UK sale: natural R290 refrigerant, 65°C flow temperature and a class-leading SCOP, well suited to retrofits.
A heat pump turns one unit of electricity into three or four units of heat. Compare the models UK installers fit by efficiency, how hot they run your radiators, noise and warranty, and work out what one would really cost you once the £7,500 grant comes off.
Compare the best air source heat pumps in the UK (Vaillant, Mitsubishi Ecodan, Daikin, Octopus Cosy, Grant) by SCOP, flow temperature, noise, warranty and cost.
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2 comparedOne of the most efficient heat pumps on UK sale: natural R290 refrigerant, 65°C flow temperature and a class-leading SCOP, well suited to retrofits.
The UK's most-installed heat pump, with proven reliability and the deepest installer network, now with an efficient R290 model.
Octopus's own 6kW R290 heat pump, usually fitted by Octopus, and with the £7,500 grant the all-in price often lands close to a new gas boiler.