An air-to-air heat pump takes heat from the outside air and delivers it straight into rooms as warm air through indoor units, usually mounted high on a wall. The same system can run in reverse to cool rooms in summer. Unlike an air-to-water heat pump, it does not use radiators or underfloor heating and does not heat a hot water cylinder.
For terraced homes in Aberdeenshire and Moray, the outdoor unit can often sit in a rear yard with tidy pipe runs to each room. Installers in Aberdeenshire and Moray plan condensate drains and pipe covers so indoor and outdoor runs stay neat. Top-floor rooms in Aberdeenshire and Moray that overheat in summer gain from the cooling an air-to-air system provides.
Who it suits
- Households that already have, or will add, a separate source of hot water
- Extensions, conservatories and garden rooms
- Rooms that get too hot in summer as well as cold in winter
- Homes where fitting radiators and pipework would be very disruptive
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 Aberdeenshire and Moray, apply and receive the written offer before the installation date is fixed.
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.
Air-to-air heat pumps prices in Aberdeenshire and Moray
Here are typical prices for air-to-air heat pumps in Aberdeenshire and Moray, installed and including VAT. Use the guide price tool for a figure based on your home, then a survey confirms it in writing.
| System | Installed guide price |
|---|---|
| Air-to-air heat pump, 1–2 rooms | £2,450–£5,150 |
| Air-to-air heat pump, multi-room 3–4 bedroom home | £4,100–£8,250 |
Installed, inc VAT. Air-to-air systems heat (and can cool) rooms but do not provide hot water.
Towns we cover in Aberdeenshire and Moray
We cover 14 towns in Aberdeenshire and Moray for air-to-air heat pumps. Each links to local guide prices and the grant position for Scotland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Aberdeen | AB11 | Portlethen | 6 h 40 min |
| Elgin | IV30 | Forres | 6 h 33 min |
| Peterhead | AB42 | Ellon | 6 h 35 min |
| Banchory | AB31 | Westhill | 6 h 42 min |
| Buckie | AB56 | Elgin | 6 h 32 min |
| Ellon | AB41 | Inverurie | 6 h 37 min |
| Forres | IV36 | Elgin | 6 h 33 min |
| Fraserburgh | AB43 | Peterhead | 6 h 32 min |
| Huntly | AB54 | Turriff | 6 h 36 min |
| Inverurie | AB51 | Westhill | 6 h 38 min |
| Portlethen | AB12 | Aberdeen | 6 h 42 min |
| Stonehaven | AB39 | Portlethen | 6 h 43 min |
| Turriff | AB53 | Huntly | 6 h 34 min |
| Westhill | AB32 | Aberdeen | 6 h 40 min |
Air-to-air heat pumps questions
How do I look after an air-to-air system?
Clean the indoor unit filters regularly, typically every few weeks during heavy use and following the manufacturer's guidance, and keep the outdoor unit clear of leaves and snow. Annual servicing is recommended and is often a condition of the manufacturer's warranty. Any work on the refrigerant circuit must be done by an F-gas certified engineer.
Can air-to-air heat pumps cool as well as heat?
Yes. Most air-to-air systems can reverse their cycle to cool and dehumidify rooms in summer, which makes them useful for loft rooms, south-facing extensions and home offices that overheat. Cooling uses electricity, so running costs rise if it is used heavily. You control heating and cooling for each room separately.
Is there a grant for air-to-air heat pumps?
In England and Wales, yes: the Boiler Upgrade Scheme includes a grant of £2,500 for air-to-air heat pumps in homes, from 28 April 2026. The MCS-certified installer applies to Ofgem and deducts it from your quote, subject to the scheme's conditions. The scheme does not cover Scotland or Northern Ireland; in Scotland, Home Energy Scotland has its own rules.
Can an air-to-air heat pump heat my water?
No. An air-to-air heat pump heats and cools the air in rooms but does not produce hot water. You need a separate source, such as an existing immersion cylinder, a hot water heat pump or an electric water heater. If you want one system for heating and hot water, an air-to-water heat pump with a cylinder is the alternative.