Head to head
Grant Aerona3 R32 10kW vs Joule Cyclone Air 150L Direct
The Grant Aerona3 R32 10kW comes with 6 years more warranty.
Last reviewed 13 September 2026
Key differences
- Warranty: the Grant Aerona3 R32 10kW comes with 6 years more warranty.
Specifications side by side
| Grant Aerona3 R32 10kW | Joule Cyclone Air 150L Direct | |
|---|---|---|
| Dimensions | 882 x 874 x 405 mm (H x W x D) | 1196 x 540 x 540 mm (H x W x D) |
| Warranty | 7 years when installed by a Grant G1 accredited installer | 1 year manufacturer's warranty |
| Heat output | 10 kW | - |
| SCOP | 5.20 (35C flow), 3.47 (55C flow) | - |
| Refrigerant | R32 | - |
| Weight | 70 kg | - |
| Capacity | - | 150 litres |
| Heat-up time | - | 57 minutes (full tank, 6kW immersion) |
| Immersion heater | - | 6kW (2 x 3kW) |
Sources: Grant Aerona3 R32 10kW, Joule Cyclone Air 150L Direct. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Aerona3 R32 10kW if...
- you want one that comes with 6 years more warranty
A 10kW R32 inverter driven heat pump from Grant's Aerona3 range, a common choice for off-gas-grid homes that previously ran an oil boiler. It carries a 7 year warranty through Grant's G1 installer scheme, one of the longer standard terms in this category.
Full Aerona3 R32 10kW specifications →Buy or hire the Cyclone Air 150L Direct if...
A 150 litre direct unvented cylinder from Joule's Cyclone range, heated by twin immersion elements rather than a boiler or heat pump coil. It suits a property with electric-only heating or a holiday let, reheating a full tank in around 57 minutes.
Full Cyclone Air 150L Direct specifications →Common questions
What is the difference between the Grant Aerona3 R32 10kW and the Joule Cyclone Air 150L Direct?
The Grant Aerona3 R32 10kW comes with 6 years more warranty. The Grant Aerona3 R32 10kW is a r32 inverter driven air source heat pump, 10 kW heat output; the Joule Cyclone Air 150L Direct is a direct unvented hot water cylinder, 150 litres.
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