Octopus’ new low cost add-on will turn heat pumps into air-cons
Octopus announces new cooling system that could help families keep their homes comfortable through scorching summers – without forking out thousands
British engineered air-con add-on for existing Cosy heat pumps will retail at £500-600, compared with £2,000–£6,000 for traditional air-con installation
Fitted in around three hours, without major building work
London, 14th October – British engineers have come up with a clever new way to keep families cool in the summer – without the eye-watering price tag of traditional air conditioning.
Octopus Energy has today unveiled the Cosy Cooler – a new gadget that turns the Cosy heat pump into a home cooling system.
Instead of installing an entirely separate air-conditioning system, the technology adapts Cosy heat pump homes to also provide cooling.
Available in 2027, the Cosy Cooler will come in at an accessible price point of £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.
There is no need to rip the house apart to fit it. 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.
Cosy Cooler actively draws warm air from the room, removes the heat with a heat exchanger and blows the cooler air back into the space. The heat it removes is transferred through the heating pipework to the outdoor Cosy Heat Pump, which releases it outside.
This means it can actively cool a room without needing the exhaust duct, and the water in the pipes stays at a temperature that doesn't cause condensation or dripping radiators.
The launch follows another scorching British summer, 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, too.
The new cooling system is the latest development in Octopus's push to make heat pumps a mainstream alternative to gas boilers.
Thanks to the Boiler Upgrade Scheme, a government grant for heat pump installations, heat pumps now cost the same or less to install than a gas boiler.*
Heat pumps are also cheaper to run than a gas boiler, with 99% of Cosy customers paying less than they would with a gas boiler, saving an average of £230 a year.
And demand is growing: over the past 18 months, Octopus has received 570,000 enquiries from people who are interested in getting a heat pump.
Greg Jackson, Octopus Energy founder and chief executive, said: “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.”
Live home and office trials have begun already, but Octopus is still looking for additional testers. Interested customers should fill out this form.
ENDS
Notes to editors
Octopus Cooler dimensions based on prototype configuration:
Height: 72.2 cm
Width: 43.0 cm
Depth: 35.8 cm
Weight: ~28 kg
*A typical gas boiler installation in 2026 costs around £3,000. Since Octopus launched its boiler equivalent offer (minimal disruption to existing home infrastructure), 59% of installations cost £3,000 or less, after taking into account the Boiler Upgrade Scheme.
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Octopus Energy Group
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About Octopus Energy
Octopus Energy is a global clean energy and technology business, driving the affordable, green energy system of the future. Under its own retail brand, Octopus delivers world-class customer service and cutting-edge energy products to 11 million households globally.
The company is driving the electrification of heat and transport through smart tariffs and innovative clean tech, with operations spanning 27 countries and the entire energy value chain. It operates a £7 billion renewables portfolio as well as thriving EV leasing, heat pump, and solar businesses.
Backed by pension funds, investors and energy giants, Octopus Energy Group businesses deliver cheaper, greener energy and cutting-edge tech to countries and customers worldwide.
For more information, check out our website.