Octopus heat pumps and Cosy tariff
Cosy heat pumps, the government grant and the heat pump tariff, plus £50 when you switch with the referral link.
- Checked 9 November 2026
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Quick answer
Octopus heat pumps: Cosy 6, 9 and 12. Typical price £4,064 after the £7,500 Boiler Upgrade Scheme grant (median, June–September 2026).
Cosy Octopus tariff: 8 cheaper hours a day for heat pump homes.
Cosy 6, 9 and 12
Octopus Cosy heat pumps. Cosy 6 is generally suitable for homes with 1–4 bedrooms.
Typical price £4,064
After the grant (median, quotes from 1 June to 30 September 2026), against a national average of £5,408.
Boiler Upgrade Scheme
England and Wales: £7,500 off, or £9,000 for eligible off-gas homes replacing oil or LPG. Octopus takes the grant off your quote. The scheme runs until March 2028. Scotland has the Home Energy Scotland grant and loan.
Cosy Octopus tariff
London example, 12-month fixed (from 30 Oct 2026): 17.15p (04–07, 13–16, 22–24), 34.95p standard, 52.42p peak (16–19), standing charge 41.22p/day, £50 exit fee. Variable Cosy: 14.12p / 28.80p / 43.19p, standing charge 42.29p/day, no exit fee.
Questions
How much does an Octopus heat pump cost?
Octopus gives a typical price of £4,064. That's the median quote after a survey and after the £7,500 Boiler Upgrade Scheme grant, for quotes from 1 June to 30 September 2026. Your price depends on your home.
Which tariff suits a heat pump?
Cosy Octopus has eight cheap hours a day for heat pumps. If you also have an EV, Octopus says Intelligent Octopus Go often works out better.
Switching to Octopus Energy? Get £50 credit with this referral link
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