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.
Combi homes in the Scottish Borders with no space for a cylinder can look at a hybrid that keeps the combi for hot water. Larger, older houses in the Scottish Borders that would need a very big heat pump may suit a hybrid while insulation is improved. In the Scottish Borders, the outdoor unit of a hybrid needs the same airflow and siting care as any heat pump.
Who it suits
- Owners who want a stepping stone towards a full heat pump later
- Large or hard-to-insulate homes where a full heat pump is difficult for now
- Combi homes with no room for a cylinder
- Homes with a fairly new boiler the owner wants to keep using
Grants and rules for heat pumps in Scotland
In Scotland, heat pump funding comes through Home Energy Scotland rather than the Boiler Upgrade Scheme: a grant of up to £7,500 (up to £1,500 extra for eligible rural and island homes) and an optional interest-free loan of up to £7,500. For a home in the Scottish Borders, apply and receive the written offer before the installation date is fixed.
There is no VAT on installing a heat pump anywhere in the UK, Scotland included, until 31 March 2027. Scottish permitted development rules and building standards apply, and the surveyor checks the unit position and any listed or conservation-area constraints.
Hybrid heat pumps prices in the Scottish Borders
These are guide prices for the Scottish Borders, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| System | Installed guide price |
|---|---|
| Hybrid heat pump alongside an existing boiler | £7,150–£11,200 |
Installed, inc VAT.
Towns we cover in the Scottish Borders
We cover 8 towns in the Scottish Borders for hybrid heat pumps. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Duns | TD11 | Eyemouth | 7 h 00 min |
| Eyemouth | TD14 | Duns | 6 h 58 min |
| Galashiels | TD1 | Selkirk | 7 h 02 min |
| Hawick | TD9 | Selkirk | 7 h 04 min |
| Jedburgh | TD8 | Kelso | 7 h 04 min |
| Kelso | TD5 | Jedburgh | 7 h 02 min |
| Peebles | EH45 | Penicuik | 7 h 01 min |
| Selkirk | TD7 | Galashiels | 7 h 03 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.
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.
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.
Do I still need to service my boiler with a hybrid?
Yes. The boiler still needs its annual service, by a registered gas engineer for gas or LPG or an oil technician for oil, and the heat pump needs its own annual service, which is often a condition of the manufacturer's warranty. Two heat sources mean slightly more maintenance than either a boiler or a heat pump on its own.