Head to head
Grant Aerona3 R32 6kW vs Ideal Heating Logic Max Combi C24 24kW
The Ideal Heating Logic Max Combi C24 24kW comes with 3 years more warranty.
Last reviewed 13 September 2026
Key differences
- Warranty: the Ideal Heating Logic Max Combi C24 24kW comes with 3 years more warranty.
Specifications side by side
| Grant Aerona3 R32 6kW | Ideal Heating Logic Max Combi C24 24kW | |
|---|---|---|
| Dimensions | 675 x 898 x 379.4 mm (H x W x D) | 700 x 395 x 278 mm |
| Warranty | 7 years when installed by a Grant G1 accredited installer | 10 years |
| Heat output | 6 kW | - |
| SCOP | 4.61 (35C flow), 3.29 (55C flow) | - |
| Refrigerant | R32 | - |
| Weight | 51 kg | - |
| Hot water output | - | 24.2 kW |
| Central heating output | - | 24.2 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 94% |
| Hot water flow rate | - | 9.9 litres per minute |
Sources: Grant Aerona3 R32 6kW, Ideal Heating Logic Max Combi C24 24kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Aerona3 R32 6kW if...
A 6kW 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 6kW specifications →Buy or hire the Logic Max Combi C24 24kW if...
- you want one that comes with 3 years more warranty
A gas combi boiler with 24.2 kW of hot water output, sized for a flat or small house with one bathroom. It delivers about 9.9 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 C24 24kW specifications →Common questions
What is the difference between the Grant Aerona3 R32 6kW and the Ideal Heating Logic Max Combi C24 24kW?
The Ideal Heating Logic Max Combi C24 24kW comes with 3 years more warranty. The Grant Aerona3 R32 6kW is a r32 inverter driven air source heat pump, 6 kW heat output; the Ideal Heating Logic Max Combi C24 24kW is a gas combi boiler, 24.2 kW hot water output.
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