A hybrid heat pump is an air-to-water heat pump installed alongside an existing gas, LPG or oil boiler, with a controller that decides which one supplies heat at any moment. Typically the heat pump covers mild and moderate weather, and the boiler takes over or helps on the coldest days, or whenever it is cheaper to run on the prices entered into the controller.
A survey in Renfrewshire and Inverclyde can set a hybrid against a full heat pump for owners anywhere in Renfrewshire and Inverclyde. For Renfrewshire and Inverclyde homes with a boiler that is still fairly new, a hybrid lets a heat pump take on much of the heating now. Larger, older houses in Renfrewshire and Inverclyde that would need a very big heat pump may suit a hybrid while insulation is improved.
Who it suits
- Homes with a fairly new boiler the owner wants to keep using
- Large or hard-to-insulate homes where a full heat pump is difficult for now
- Combi homes with no room for a cylinder
- Owners who want a stepping stone towards a full heat pump later
Grants and rules for heat pumps in Scotland
The Boiler Upgrade Scheme does not apply in Scotland. Instead, homeowners in Renfrewshire and Inverclyde can apply to Home Energy Scotland for a grant of up to £7,500 towards a heat pump, with up to £1,500 more for eligible rural and island homes, plus an optional interest-free loan of up to £7,500. You need a written funding offer before any work starts.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Scotland has its own permitted development rules for air source heat pumps and its own building standards, so we confirm what applies to your property at survey.
Hybrid heat pumps prices in Renfrewshire and Inverclyde
The ranges below are typical installed prices for homes in Renfrewshire and Inverclyde, including VAT. A survey sets the exact figure, because two similar-looking houses in Renfrewshire and Inverclyde can need quite different radiators and pipework.
| System | Installed guide price |
|---|---|
| Hybrid heat pump alongside an existing boiler | £7,000–£11,000 |
Installed, inc VAT.
Towns we cover in Renfrewshire and Inverclyde
We cover 10 towns in Renfrewshire and Inverclyde for hybrid heat pumps. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Paisley | PA2 | Barrhead | 6 h 59 min |
| Greenock | PA15 | Gourock | 6 h 57 min |
| Newton Mearns | G77 | Barrhead | 7 h 00 min |
| Renfrew | PA4 | Erskine | 6 h 58 min |
| Barrhead | G78 | Paisley | 6 h 59 min |
| Johnstone | PA5 | Bridge of Weir | 6 h 59 min |
| Erskine | PA8 | Renfrew | 6 h 58 min |
| Bridge of Weir | PA11 | Johnstone | 6 h 59 min |
| Gourock | PA19 | Greenock | 6 h 57 min |
| Port Glasgow | PA14 | Greenock | 6 h 58 min |
Hybrid heat pumps questions
Will a hybrid heat pump lower my bills?
It can reduce how much gas, LPG or oil you burn, but the effect depends on how the controller is set, your insulation, your tariff and fuel prices. You keep a boiler to service and, on mains gas, the standing charge. We do not promise a figure; instead the survey gives an estimate for your home comparing a hybrid with a full heat pump.
Does a hybrid switch between heat sources automatically?
Yes. The hybrid controller follows rules set at commissioning: it might switch to the boiler below a chosen outdoor temperature, compare running costs using the prices you enter, or prioritise lower carbon. Some systems run both together in very cold weather. The installer sets these for your home and shows you how to adjust them when tariffs change.
Is a hybrid a good step towards a full heat pump?
It can be, if the outdoor unit and pipework are sized with a future full system in mind. Later, once insulation has improved or radiators have been upgraded, the boiler can be removed and the system converted, provided the heat pump is large enough for the full load. Raise this at survey so the design leaves room to change.
Can I get the Boiler Upgrade Scheme grant for a hybrid heat pump?
No. In England and Wales hybrid systems are not eligible for the Boiler Upgrade Scheme, because the scheme requires the heat pump to meet the home's full heating and hot water needs on its own. If a grant matters to your budget, a full air-to-water heat pump is the option that can qualify. In Scotland and Northern Ireland we check at survey what, if any, funding applies.