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Oil and LPG can be £9,000 until 31 March 2027. Coal is listed at £7,500. Change the fuel and the heat pump to see the row.
Send the country, the fuel and the heat pump type. The form emails this site. It does not name an installer.
Looks eligible to apply
£9,000
An off-gas home replacing oil with an air-to-water heat pump is in the £9,000 category from 21 July 2026 to 31 March 2027. After that date the standard grant is £7,500.
A typical air-to-water install is often quoted around £10,000 to £16,000 before the grant, so the amount after a £9,000 grant would commonly sit around £1,000 to £7,000. That is a published range, not your quote.
See how quotes workThis is a guide, not a decision. Your installer applies and Ofgem decides.
Amounts come from the GOV.UK grant values notice and the Ofgem property owner page. This is a guide, not a decision. Your installer applies and Ofgem decides.
Both fuels are off the gas grid. The grant values notice does not treat them the same when the replacement is an air-to-water or ground source heat pump.
Oil or LPG
£9,000
Air-to-water or ground source, until 31 March 2027
Coal
£7,500
Same heat pumps, standard row
Difference on the notice
£1,500
Only while the dated oil and LPG category is open
An oil home and a coal home can both be off the gas grid and still sit on different grant rows. The checker follows the notice, not a single off-gas label.
From 21 July 2026 to 31 March 2027, the approved values notice sets a £9,000 grant for an air-to-water or ground source heat pump that replaces oil or LPG. The standard grant for other air-to-water and ground source replacements is £7,500.
The full scheme rules are on the Boiler Upgrade Scheme guide. Coal is explained on its own page because it is the off-gas fuel that does not move to £9,000.
The higher amount needs both the right fuel and the right heat pump. Either one on its own is not enough.
| Fuel | Oil or LPG |
| Heat pump | Air-to-water or ground source |
| Dates | 21 July 2026 to 31 March 2027 |
| Coal to air-to-water or ground source | £7,500 |
| Gas or electric to those heat pumps | £7,500 |
| Any fuel to air-to-air | £2,500 |
The £9,000 category starts on 21 July 2026 and runs to 31 March 2027. A coal replacement does not enter that category on the values notice we checked on 19 October 2026. After the end date, describe the standard £7,500 grant unless a newer notice changes it. The coal grant page keeps that split in one place.
No. On the grant values notice, the £9,000 category is oil or LPG replaced by an air-to-water or ground source heat pump, from 21 July 2026 to 31 March 2027. Coal is listed at £7,500.
No. Air-to-air stays at £2,500 on oil, LPG and coal.
The notice dates the £9,000 category to 31 March 2027. After that date this site describes the standard £7,500 grant unless a later notice says otherwise.
This is a guide, not a decision. Your installer applies and Ofgem decides.
Reviewed by

UK Heat Pump & Funding Specialist
MCIBSE and MCS certified retrofit specialist. Director of Thomson and Sons Low Carbon Consulting Firm Ltd, specialising in heat pump retrofits since 2005.