Aira Air Source Heat Pump
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 air source heat pump price UK (2026)
The Boiler Upgrade Scheme takes £7,500 off in England and Wales (£9,000 for off-gas homes replacing oil or LPG heating, until 31 March 2027); your MCS-certified installer claims it for you. Scotland uses the Home Energy Scotland grant and loan instead; Northern Ireland has no equivalent. 0% VAT until 31 March 2027 is already reflected. Smallest model: Aira 8kW from £14,229 pre-grant. Largest: Aira 8kW up to £19,500. Running cost estimated at ~10,000 kWh of heat a year and 26.32p/kWh electricity (October to December 2026 cap). Accurate as at October 2026.
Warranty: 5 years product warranty as standard (repair or replacement of the defective product only, no labour, conditional on servicing per Aira's handbook), plus a separate 6-year design and installation warranty. The 15-year Aira Guarantee (all parts, labour and maintenance) applies only with the All Inclusive Plan: free for the first year, then £19.90 a month.SCOP is the MCS-certified seasonal efficiency; sound power is the maker's declared ErP figure, the like-for-like noise measure (what you hear next door depends on distance and siting). Prices are indicative; confirm with your MCS-certified installer.
Available Models
Aira 8kW
Specifications from the makers' datasheets and the MCS product directory, checked October 2026; prices are indicative. Running costs: Estimate for 10,000 kWh of heat a year at 26.32p per kWh (Ofgem price cap, October to December 2026), at a 45°C design flow temperature: the midpoint of the certified 35°C and 55°C SCOPs. Post-grant figures illustrate the £7,500 Boiler Upgrade Scheme in England and Wales. Confirm current models and exact pricing with your MCS-certified installer.
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
Aira pricing and grants in your region
The hardware is the same everywhere; the support is not. England and Wales use the £7,500 Boiler Upgrade Scheme, Scotland the Home Energy Scotland grant and loan, and Northern Ireland currently has no grant. Each regional guide covers exactly what applies.
Aira air source heat pump FAQ
How much is a Aira air source heat pump installed in the UK (2026)?
A Aira air source heat pump costs £14,229 - £19,500 fully installed in the UK before any support (indicative, June 2026, with 0% VAT already applied). After the £7,500 Boiler Upgrade Scheme grant in England and Wales, that is illustratively £6,729 - £12,000 out of pocket. The smallest model (Aira 8kW) starts around £14,229 pre-grant; the largest (Aira 8kW) tops out around £19,500. Combi-to-cylinder conversions and radiator upgrades add to these figures, so always confirm with a written quote.
Is a Aira heat pump eligible for the £7,500 grant?
Yes. Every air-to-water unit on this page qualifies for the Boiler Upgrade Scheme in England and Wales when it is fitted by an MCS-certified installer, who applies for the grant on your behalf so it comes straight off the quote. Off-gas homes replacing oil or LPG heating can claim £9,000 instead, until 31 March 2027. Scotland uses the Home Energy Scotland grant and loan instead; Northern Ireland currently has no equivalent scheme. Grant details accurate as at October 2026.
Is Aira a good air source heat pump brand?
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 is best suited to homeowners who want one company to handle design, installation and upkeep, and are happy to pay a monthly plan for 15-year cover.
What is the warranty on a Aira heat pump?
5 years product warranty as standard (repair or replacement of the defective product only, no labour, conditional on servicing per Aira's handbook), plus a separate 6-year design and installation warranty. The 15-year Aira Guarantee (all parts, labour and maintenance) applies only with the All Inclusive Plan: free for the first year, then £19.90 a month. Workmanship cover for the installation itself comes separately from your installer. Most extended terms depend on registering the product and annual servicing, so keep your installation paperwork and MCS certificate.
How efficient is a Aira air source heat pump?
The Aira 8kW has an MCS-certified SCOP (seasonal coefficient of performance) of 4.62 at 35°C flow and 3.52 at 55°C, so over a heating season each 1 kWh of electricity delivers about 3.52 to 4.62 kWh of heat, depending on how hot your system runs. At a 45°C design flow and the Ofgem cap rate (26.32p/kWh), 10,000 kWh of heat costs an estimated £645 a year, against roughly £890 for a 90%-efficient gas boiler at the current cap gas rate (7.97p/kWh from 1 October 2026). Estimates, not quotes; heat pump time-of-use tariffs can do better.
How long does a Aira heat pump last?
With an annual service, heat pumps are generally expected to run well beyond their warranty period (Aira: 5 years, up to 15 with conditions). Longevity depends on correct sizing (the MCS heat-loss survey), sensible siting and regular servicing. Confirm design life and extended-warranty options for your specific model with your MCS-certified installer.
Aira vs other brands: which should I pick?
Aira sits at the premium end of the UK market on pre-grant pricing. It is designed, sold, installed and maintained by Aira itself, publishes its prices (£7,150 to £12,000 after the grant), and offers 15-year cover on its paid All Inclusive Plan. See the side-by-side comparisons below for direct head-to-head specs.
Aira vs other heat pump brands
Heat pump guides
- 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
- Air source heat pumps: costs, grants and brands
- Heat pump grants in London
- Heat pump grants in South East England
- Heat pump grants in South West England
- Heat pump grants in East of England
- Heat pump grants in East Midlands
- Heat pump grants in West Midlands
- Heat pump grants in Yorkshire and the Humber
- Heat pump grants in North West England
- Heat pump grants in North East England
- Heat pump grants in Scotland
- Heat pump grants in Wales
- Heat pump grants in Northern Ireland
Other heat pump brands
Where are you?
See indicative costs and local installers for your area