Product overviewThe Grant Aerona R290 is an inverter-driven air-to-water heat pump range using the natural refrigerant R290 (Propane). Available in 4 kW, 6.5 kW, 9 kW, 12 kW and 16 kW variants, the range is engineered for efficient space heating and domestic hot water with low lifecycle greenhouse gas impact and ultra-low noise levels.
Features & Benefits- Heating outputs: 4 kW, 6.5 kW, 9 kW, 12 kW, 16 kW
- Inverter-driven compressors for modulating output and improved seasonal performance
- R290 (Propane) refrigerant with GWP = 3 for reduced greenhouse gas impact
- Ultra-low noise design — Quiet Mark certified
- Durable powder-coated black finish suitable for outdoor installation
- Anti-freeze protection: heater on plate heat exchanger and heated base tray for cold climates
- Compatible with Aerona Smart Controller; remote access requires Aerona Smart WiFi Hub
Awards & Accreditations- Quiet Mark Certified
- Outstanding Innovation award
- Heat Pump Product award
Integrated Heating PackagesGrant Integrated Heating Packages pair the Aerona R290 heat pump with appropriate hot water storage and emitters to deliver a complete heating solution optimised for new-build properties and professional installations.
Knowledge – natural refrigerant R290R290 (Propane) is a natural, low‑GWP refrigerant with strong thermodynamic properties that support high efficiency in heat pump systems. It is non-toxic and odourless; handling and installation must follow applicable safety standards and regulations.
SpecificationHPR290i40 | Grant Aerona 4 kW R290 Inverter Air Source Heat Pump | ErP a+++ | Weight 101/116 kg | H 803 mm | W 1155 mm | D 422 mm | SCOP 4.81
HPR290i65 | Grant Aerona 6.5 kW R290 Inverter Air Source Heat Pump | ErP a+++ | Weight 117/137 kg | H 854 mm | W 1223 mm | D 461 mm | SCOP 5.02
HPR290i90 | Grant Aerona 9 kW R290 Inverter Air Source Heat Pump | ErP a+++ | Weight 132/149 kg | H 854 mm | W 1223 mm | D 461 mm | SCOP 4.60
HPR290i120 | Grant Aerona 12 kW R290 Inverter Air Source Heat Pump | ErP a+++ | Weight 155/182 kg | H 1365 mm | W 1155 mm | D 419 mm | SCOP 4.77
HPR290i160 | Grant Aerona 16 kW R290 Inverter Air Source Heat Pump | ErP a+++ | Weight 182/210 kg | H 1365 mm | W 1155 mm | D 419 mm | SCOP 4.59
Technical characteristics- Models: HPR290i40 (4 kW), HPR290i65 (6.5 kW), HPR290i90 (9 kW), HPR290i120 (12 kW), HPR290i160 (16 kW)
- Refrigerant: R290 (Propane), GWP = 3
- Energy class: ErP rating a+++
- Noise: ultra-low noise design, Quiet Mark certified
- Cold-climate protection: plate heat exchanger heater and heated base tray
- Finish: powder-coated black
- Controls: compatible with Aerona Smart Controller; Aerona Smart WiFi Hub required for remote access
- Per-model weights, dimensions and SCOP values listed above