Head to head
Grant Aerona3 R32 17kW vs Ideal Heating Logic Max Combi C30 30kW
The Ideal Heating Logic Max Combi C30 30kW comes with 3 years more warranty.
Last reviewed 13 September 2026
Key differences
- Warranty: the Ideal Heating Logic Max Combi C30 30kW comes with 3 years more warranty.
Specifications side by side
| Grant Aerona3 R32 17kW | Ideal Heating Logic Max Combi C30 30kW | |
|---|---|---|
| Dimensions | 1418 x 1024 x 403 mm (H x W x D) | 700 x 395 x 278 mm |
| Weight | 118 kg | 28.6 kg |
| Warranty | 7 years when installed by a Grant G1 accredited installer | 10 years |
| Heat output | 17 kW | - |
| SCOP | 4.54 (35C flow), 3.57 (55C flow) | - |
| Refrigerant | R32 | - |
| Hot water output | - | 30.3 kW |
| Central heating output | - | 25.6 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 94% |
| Hot water flow rate | - | 12.4 litres per minute |
Sources: Grant Aerona3 R32 17kW, Ideal Heating Logic Max Combi C30 30kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Aerona3 R32 17kW if...
A 17kW 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 17kW specifications →Buy or hire the Logic Max Combi C30 30kW if...
- you want one that comes with 3 years more warranty
A gas combi boiler with 30.3 kW of hot water output, sized for a three-bed house with one or two bathrooms. It delivers about 12.4 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 10 years. Seasonal efficiency is 94%.
Full Logic Max Combi C30 30kW specifications →Common questions
What is the difference between the Grant Aerona3 R32 17kW and the Ideal Heating Logic Max Combi C30 30kW?
The Ideal Heating Logic Max Combi C30 30kW comes with 3 years more warranty. The Grant Aerona3 R32 17kW is a r32 inverter driven air source heat pump, 17 kW heat output; the Ideal Heating Logic Max Combi C30 30kW is a gas combi boiler, 30.3 kW hot water output.
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