Grant Aerona Review UK (2026)
Quick Answer
Irish-headquartered heating brand with the R290 Aerona range, strong in rural and oil-replacement homes.
Data verified April 2026. UK installed pricing varies with installer, site and package.
At a Glance
| Origin | Ireland (Grant Engineering, founded 1978), large UK presence |
| UK support | Strong in rural UK and off-gas areas, established oil-boiler heritage and installer base |
| Capacity / sizing | 6 kW – 17 kW (Aerona R290 range) |
| SCOP | 4.4+ at 35°C flow (Aerona R290, A7/W35) |
| Warranty | 7 years on the Aerona R290 with registration |
| Indicative UK price | £8,500–£13,500 installed before BUS grant (-£7,500) |
Strengths
- R290 natural refrigerant with high flow temperatures, well suited to older rural homes
- Strong reputation with off-gas and oil-replacement households
- Competitive pricing against the premium European brands
- 7-year warranty on registration
Weaknesses
- Smaller smart-control ecosystem than Daikin or Vaillant
- Installer base is strongest in rural areas, fewer urban specialists
- Brand name clashes with the Boiler Upgrade Scheme grant in searches
Who Grant Aerona Suits Best
Rural and off-gas homes replacing an oil boiler, where high flow temperatures and a trusted oil-era brand matter.
When to Avoid
You want the deepest smart-home integration, Daikin and Vaillant lead there.
Popular Models
- Aerona R290 HPID10 (10 kW)
- Aerona R290 HPID13 (13 kW)
- Aerona³ R32 (legacy range)
Frequently Asked Questions
How much does a Grant heat pump cost in the UK?
Grant Aerona installations typically cost £8,500–£13,500 before the £7,500 Boiler Upgrade Scheme grant, bringing the net cost to roughly £1,000–£6,000 for most homes.
Is the Grant Aerona a good heat pump?
Yes, particularly for rural and oil-replacement homes. The Aerona R290 uses natural refrigerant, reaches high flow temperatures suited to older radiators, and carries a 7-year warranty on registration.
Does the Grant heat pump qualify for the BUS grant?
Yes. The Grant Aerona qualifies for the £7,500 Boiler Upgrade Scheme grant when installed by an MCS-certified installer in England and Wales. Note that Grant is the brand name, separate from the grant itself.
What refrigerant does the Grant Aerona use?
The current Aerona range uses R290 (propane), a natural refrigerant with very low global warming potential that also supports higher flow temperatures, useful for homes keeping existing radiators.
Compare with Other Heat Pump Brands
| Brand | UK support | Warranty | Indicative price | |
|---|---|---|---|---|
| Vaillant | Strong, large UK installer and service network, significant G.A.S. partnership | 5 years standard; up to 10 years via accredited installer (G.A.S.) | £9,000–£14,000 installed before BUS grant (-£7,500) | View → |
| Daikin | Very strong, large UK office, Daikin Sustainable Home Centre, extensive installer network | 3 years standard; extendable to 7 years via accredited installer | £9,500–£14,500 installed before BUS grant | View → |
| Mitsubishi Ecodan | Very strong, largest installer base of any ASHP brand in the UK | 7 years standard on accredited installs (Mitsubishi Electric Hybrid+ programme) | £9,000–£13,500 installed before BUS grant | View → |
| NIBE | Strong, UK office plus VIP+ installer network (extended warranty programme) | 5 years standard; up to 10 years via VIP+ accredited installer | £10,000–£15,000 installed before BUS grant (air source); significantly more for ground source with boreholes | View → |
| Viessmann Vitocal | Established UK office and trained installer network, strong technical support | 5 years standard; extendable via accredited installers | £9,500–£14,500 installed before BUS grant | View → |
| Panasonic Aquarea | Good UK distribution and installer network, established air conditioning heritage | 5 years standard; up to 7 via accredited installers | £8,500–£13,000 installed before BUS grant | View → |
| Samsung EHS | Growing UK installer network, established air conditioning presence | 5 years standard; up to 7 via accredited installers | £8,000–£12,500 installed before BUS grant | View → |
| LG Therma V | Growing UK network, established HVAC and air conditioning presence | 5 years standard; up to 7 via accredited installers | £8,500–£13,000 installed before BUS grant | View → |
| Aira | Direct Aira-employed installers and aftercare, not a traditional dealer network | Long warranty and performance guarantee as part of the Aira package | Upfront from around £6,500 net after grant, or a monthly subscription | View → |
| Bosch Compress | Strong, leans on the large Worcester Bosch heating installer base in the UK | Up to 7 years via accredited installers | £9,000–£14,000 installed before BUS grant | View → |
| Ideal Heating | Strong UK manufacturing base and a large existing boiler installer network | Up to 7 years via accredited installers | £8,500–£13,000 installed before BUS grant | View → |
| Midea | Growing UK distribution; Midea also manufactures units badged by other brands | 5 years standard; extendable via accredited installers | £7,500–£12,000 installed before BUS grant | View → |
Get a Quote Including Grant Aerona
Most MCS-certified installers carry multiple heat pump brands — ask for a quote specifying Grant Aerona if you want a heat pump from this brand. Use the form below to reach local installers.
Sources
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He researches every battery and inverter brand against manufacturer datasheets, MCS and Ofgem data, and feedback from the MCS-certified installers in our directory before publishing.