Head to head
Ideal Heating Logic Max Combi C24 24kW vs Vaillant aroTHERM plus 5kW
The Ideal Heating Logic Max Combi C24 24kW is a gas combi boiler, 24.2 kw hot water output. The Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Ideal Heating Logic Max Combi C24 24kW | Vaillant aroTHERM plus 5kW | |
|---|---|---|
| Dimensions | 700 x 395 x 278 mm | 965 x 1100 x 450 mm (H x W x D) |
| Hot water output | 24.2 kW | - |
| Central heating output | 24.2 kW | - |
| ErP class | A | - |
| Seasonal efficiency | 94% | - |
| Warranty | 10 years | - |
| Hot water flow rate | 9.9 litres per minute | - |
| Heat output | - | 5 kW |
| SCOP | - | up to 5.03 |
| Refrigerant | - | R290 (propane), low GWP |
| Sound power | - | 53 dB(A) at A7/W35, 58 dB(A) at A7/W55 |
| Weight | - | 128 kg (operating) |
| Max flow temperature | - | 75C |
Sources: Ideal Heating Logic Max Combi C24 24kW, Vaillant aroTHERM plus 5kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Logic Max Combi C24 24kW if...
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 →Buy or hire the aroTHERM plus 5kW if...
The smallest aroTHERM plus, sized for a well-insulated flat or small house. It uses the natural refrigerant R290 rather than an F-gas, and reaches a 75C flow temperature, which helps it work with existing radiators on a retrofit job.
Full aroTHERM plus 5kW specifications →Common questions
What is the difference between the Ideal Heating Logic Max Combi C24 24kW and the Vaillant aroTHERM plus 5kW?
The Ideal Heating Logic Max Combi C24 24kW is a gas combi boiler, 24.2 kW hot water output; the Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kW heat output.
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