Grant UK has said its new Grant Aerona 290 heat pump range will be available to order in October 2024, with the 4kW, 6.5kW and 9kW units released first1. The announcement was published on 13 September 2024 and describes the Aerona 290 as the fifth generation of air source heat pump from Grant Engineering, which it says is marking fifteen years in the heat pump market1.
The range is a monobloc air-to-water heat pump using R290 refrigerant, which Grant gives a Global Warming Potential of 3 and describes as a natural refrigerant and a pure hydrocarbon1. The units carry an A+++ energy rating at 35°C flow temperature, and Grant says their outputs have been rated at -5°C air temperature and 55°C water flow temperature1. They have been tested to perform between -25°C and 35°C, and Grant says they have achieved Quiet Mark accreditation through sound-reducing features including acoustic cotton insulation in the casing and anti-vibration feet1. The casing is powder coated black1.
The Aerona 290 will be supplied alongside Grant's existing Aerona³ models1. Grant says the units can be monitored and managed remotely and are designed for use with the Aerona Smart Controller1. A 7-year guarantee is offered when the unit is installed by a G1 Installer, with terms and conditions applying1. Grant is also launching ancillary products for use with the Aerona 290 and Aerona³ ranges, including new models of QR Smart Pre-Plumbed cylinders featuring the Aerona Smart Controller, plus additional Smart heat pump controller kits and accessories1.
"Grant UK's new air-to-water heat pump range, the Aerona 290, will be available to order in October 2024"
| Output | Availability |
|---|---|
| 4kW | From October 2024 |
| 6.5kW | From October 2024 |
| 9kW | From October 2024 |
| 12kW | Early 2025 |
| 15.5kW | Early 2025 |
Why it matters for households
The Aerona 290 adds another option in the Grant heat pumps line-up rather than replacing the existing Aerona³ range, which continues to be supplied1. For a household weighing up a heat pump, the published figures describe a unit rated for cold conditions, down to -5°C air temperature at 55°C flow temperature, and tested across a wider range from -25°C to 35°C1. The refrigerant choice is also relevant to heat pump refrigerants and the F-Gas rules: R290 has a Global Warming Potential of 3 on Grant's figure, far below the fluorinated gases commonly used in older equipment1. Grant states that its training course covers R290 refrigerant and the safety requirements for installation, which indicates the refrigerant carries specific handling requirements1. The 7-year guarantee is conditional on installation by a G1 Installer1. Grant has not reported prices for the range, and no running costs, efficiency figures at UK weather conditions beyond those stated, or eligibility for any government grant scheme appear in the announcement1.
What happens next
Grant UK's Training Academy has released a free one-day course on the Aerona 290 at its Swindon academy, which it says will be rolled out nationally to selected training venues from October1. The 12kW and 15.5kW outputs are due in early 20251. Households considering a hot water heat pump cylinder alongside a new unit may note the new QR Smart Pre-Plumbed cylinder models announced with the range1. Further detail on the wider market is available in the heat pumps section.
Sources1 cited
- News release | GrantUK The Aerona 290, grantuk.com