Octopus Energy, the UK’s largest energy supplier, has revealed a new gadget which can turn its range of Cosy heat pumps into air-conditioning systems
Available in 2027, the Cosy Cooler will come in at £500-600 when added to an existing Cosy heat pump system – a fraction of the £2,000 to £6,000 that traditional air-conditioning systems can cost to install.
The launch follows another summer of extreme conditions, with temperatures reaching 38.2C in August 2026. With the El Niño weather phenomenon expected to develop, attention is turning to how families can keep their homes cool next summer.
The device is designed to connect to the pipework already in place, with installation expected to take around three hours. The portable Cosy Cooler is the size of a tall kitchen bin and plugs directly into radiator pipework to circulate chilled water through the home, with no need for an outdoor hose.
The unit can cool single rooms or run up to two to three units at once across different rooms, depending on the Cosy heat pump model.
The outdoor Cosy heat pump takes in warm air from outside, using it to chill water and pump it through the home’s central heating pipes. The unit inside also draws in warm indoor air, cools it across a built-in heat exchanger, and circulates chilled air into the room.
Greg Jackson, Octopus Energy Founder and CEO, says: “Sadly, British homes need to be ready for freezing winters and increasingly hot summers. The Boiler Upgrade Scheme has helped give the industry the confidence to invest, innovate and drive costs down – and Cosy Cooler is the latest result of Octopus ingenuity.”
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