Grant Engineering
Grant Aerona 290 9kW R290 Air Source Heat Pump
Grant Aerona 290 9kW R290 Air Source Heat Pump
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The Grant Aerona 290 9kW R290 Air Source Heat Pump (HPR2909) is Grant's fifth-generation inverter-driven air-to-water heat pump, ideal for medium-sized homes with moderate heat loss. Using the natural refrigerant R290 (GWP of just 3), it delivers exceptional seasonal efficiency and is fully eligible for the UK Government's Boiler Upgrade Scheme (BUS) grant.
The 9kW model is one of the most popular choices for UK homes, offering a balance of output, efficiency, and compact footprint. Compatible with the Grant Aerona Smart Controller for remote monitoring and weather compensation.
Key Features
- Natural R290 refrigerant — GWP of just 3, zero ODP
- MCS accredited and BUS grant eligible (up to £7,500)
- Quiet Mark accredited — ultra-low noise at 42.6 dB(A) at 1m
- A+++ ErP energy rating at 35°C water temperature
- 7-year guarantee available via G1 trained installers
- Operating range: -25°C to +35°C ambient air temperature
- Maximum flow temperature: 75°C
- Built-in refrigerant leak sensor and independent ventilation channels
- Anti-freeze protection heater on plate heat exchanger and base tray
- Connect and Notify approved
Technical Specifications
| Product Code | HPR2909 |
| Heating Output | 9kW (rated at -5°C air / 55°C water) |
| Capacity at 7°C / 35°C water | 9.38kW |
| Capacity at 7°C / 55°C water | 9.21kW |
| SCOP at 35°C water | 4.74 |
| SCOP at 55°C water | 3.69 |
| ErP Rating (35°C water) | A+++ |
| ErP Rating (55°C water) | A++ |
| Refrigerant | R290 (Propane, GWP = 3) |
| Operating Voltage | 230V / 1 Phase |
| Max Running Current | 16.8A |
| Flow & Return Connections | 1" BSP Male |
| Operating Temperature Range | -25°C to +35°C |
| Maximum Flow Temperature | 75°C |
| Sound Power Level | 54 dB(A) |
| Sound Pressure Level at 1m | 42.6 dB(A) |
| Dimensions (H × W × D) | 854mm × 1223mm × 461mm |
| Weight | 131kg |
| Warranty | 7 Years (G1 Installer) / 5 Years (standard) |
Boiler Upgrade Scheme (BUS)
This heat pump is MCS accredited and fully eligible for the UK Government's Boiler Upgrade Scheme, providing a grant of up to £7,500 towards installation costs. Contact Magna Renewables to find out more.
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