Aira Air Source Heat Pump Cost in South East England
£14,229 to £19,500 installed before the grant, or £6,729 to £12,000 after a £7,500 grant.
Prices are PumpSwap's indicative figures for Aira, not quotes. Boiler Upgrade Scheme grant (£9,000 for off-gas homes on oil or LPG).
Aira is a Swedish company that designs its own R290 heat pump, builds it in Wroclaw, Poland, and sells and installs it directly to UK homes. It offers 6, 8 and 12 kW outdoor units, publishes real-world performance data from UK installs, and bundles a 15-year guarantee into a paid all-inclusive plan. As with Octopus Cosy, you cannot buy an Aira unit through an independent installer. We list the 8 kW: Aira does not publish the weight or sound power of the single-phase 12 kW.
Aira models and running costs in South East England
Running costs for 10,000 kWh of heat a year at 26.88p per kWh (Ofgem price cap for South Eastern England, 1 October to 31 December 2026), at a 45°C design flow temperature: the midpoint of each model's MCS-certified 35°C and 55°C SCOPs.
| Model | Size | SCOP 35°C / 55°C | Installed, before grant | Running cost a year |
|---|---|---|---|---|
| Aira 8kW homes of 150 to 200 m² (Aira's sizing guide). Aira: output at -7°C/35°C; ErP rated heat output 9.2 kW at 55°C | 8 kW | 4.62 / 3.52 | £14,229 to £19,500 | £660 |
Pros
- Designed, sold, installed and maintained by Aira itself
- R290 refrigerant, rated A+++ at 35°C
- 15 years of parts, labour and maintenance cover on the All Inclusive Plan (first year free)
- Publishes real-world UK performance data: average SPF 3.79 for November to March
- Published pricing: £7,150 to £12,000 after the grant, per Aira
Cons
- Only available through Aira, so there are no competing quotes on the same hardware
- Without the paid plan, the product warranty is 5 years, parts only, with no labour
- Aira's headline SCOP of 4.7 is above its MCS-listed figures (4.40 to 4.62)
- Declared sound power of 56 dB(A) (8 kW), higher than the LG and NIBE models here (49 to 50 dB(A))
Best for: Homeowners who want one company to handle design, installation and upkeep, and are happy to pay a monthly plan for 15-year cover. Warranty: 5 years, up to 15 with conditions.
What South East England means for your heat pump
- Climate. January averages 7.8°C by day and 1.9°C at night, with 43 days of air frost a year (Met Office 1991-2020; UK 1.2°C and 53 days). The heat loss survey sizes the unit for your local design temperature.
- Gas grid. 16% of homes here are off the gas grid (2024 estimate; Great Britain 16%). Homes on oil or LPG with no mains gas can claim £9,000 until 31 March 2027.
- Grant. Boiler Upgrade Scheme grant (£9,000 for off-gas homes on oil or LPG).
Full detail for the region, including planning rules and running costs against gas: air source heat pump cost in South East England.
Aira prices in towns across South East England
Other brands in South East England
Aira in other regions: London, South West England, East of England, East Midlands, West Midlands, Yorkshire and the Humber, North West England, North East England, Scotland, Wales, Northern Ireland.
Frequently asked questions
How much does a Aira heat pump cost in South East England?
£14,229 to £19,500 installed before the grant, or £6,729 to £12,000 after a £7,500 grant. These are PumpSwap's indicative 2026 prices; your installer's survey sets the real figure.
Can I get the grant on a Aira heat pump in South East England?
Yes, if your home qualifies: the Boiler Upgrade Scheme is not tied to a brand, as long as the installer is MCS-certified. It comes straight off the quote.
What would a Aira heat pump cost to run in South East England?
Roughly £660 a year for the Aira 8kW to deliver 10,000 kWh of heat at 26.88p per kWh (Ofgem price cap for South Eastern England, 1 October to 31 December 2026). That assumes a 45°C design flow temperature, estimated from its MCS-certified SCOPs of 4.62 at 35°C and 3.52 at 55°C. A lower flow temperature, with bigger radiators or underfloor heating, costs less to run.
Who installs Aira heat pumps in South East England?
MCS-certified installers across South East England fit Aira. Ask for a heat loss survey and compare two or three quotes on the same basis: unit size, cylinder, radiator changes and warranty.
Heat pump guides for South East England
- Air source heat pump cost in South East England
- Heat pump grants in South East England and how to claim them
- Air source heat pump installers in South East England
- Air source heat pump installation cost in the UK
- The best air source heat pumps in the UK, compared
- The £7,500 Boiler Upgrade Scheme, explained
Prices, models, efficiency and warranties are indicative and change; confirm with your MCS-certified installer. Climate: Met Office 1991-2020 averages. Energy prices: Ofgem price cap for South Eastern England, 1 October to 31 December 2026.
Where are you?
See indicative costs and local installers for your area