Heat pump vs LPG boiler
Heat pump vs LPG boiler
LPG is the most expensive common heating fuel — so it's often where a heat pump saves the most. The honest comparison, plus the enhanced £9,000 grant.
Compare: vs Gas boiler vs Oil boiler vs LPG boiler vs Electric
LPG is among the most expensive ways to heat a UK home, so it's often where a heat pump saves the most. Here's the honest comparison — running costs, the enhanced grant for off-grid LPG homes, comfort and carbon.
Running costs: heat pump vs LPG
Because LPG is costly per unit and a heat pump is efficient, the running-cost gap is usually the largest of any fuel. Most LPG homes see a clear saving.
| System | Indicative annual cost |
|---|---|
| LPG boiler | highest of the fossil fuels |
| Air source heat pump | much lower — often £500–£1,300 less |
Check your own figure with the savings calculator.
The bigger grant for LPG homes
Off-grid LPG homes qualify for the higher £9,000 Boiler Upgrade Scheme grant during the uplift window (21 Jul 2026 – 31 Mar 2027). Combined with the running-cost saving, that makes switching from LPG particularly compelling right now. See the grant page.
Comfort, carbon and convenience
Switching from LPG removes deliveries and tank costs, cuts carbon sharply, and gives steady, even warmth. For most LPG households this is the clearest-cut switch of all.
Common questions
Is a heat pump cheaper to run than LPG?
Almost always, yes — by the widest margin of any fossil fuel. LPG is one of the most expensive ways to heat a home, so switching to a heat pump typically delivers the largest running-cost saving, often several hundred pounds a year or more.
How much can I save switching from LPG?
Indicatively, many LPG homes save somewhere in the region of £500–£1,300 a year on running costs, though it depends on usage, tariff and insulation. You also lose LPG deliveries and tank rental or ownership costs.
Do off-grid LPG homes get £9,000?
Yes. Like oil, off-gas-grid homes currently on LPG can claim the higher £9,000 Boiler Upgrade Scheme grant from 21 July 2026 to 31 March 2027, rather than the standard £7,500.
Is LPG being phased out?
LPG remains available, but it's costly and carbon-heavy, and government support is firmly behind low-carbon heating. For most LPG households, switching now captures both the running-cost saving and the enhanced grant while it's available.
See your numbers for switching from LPG
The calculator shows your system size, install cost, the grant applied and your running-cost change — honestly.