Head to head
Vaillant aroTHERM plus 10kW vs Vaillant aroTHERM plus 5kW
The Vaillant aroTHERM plus 10kW is a r290 monobloc air source heat pump, 10 kw heat 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
| Vaillant aroTHERM plus 10kW | Vaillant aroTHERM plus 5kW | |
|---|---|---|
| Heat output | 10 kW | 5 kW |
| SCOP | up to 5.03 | up to 5.03 |
| Refrigerant | R290 (propane), low GWP | R290 (propane), low GWP |
| Max flow temperature | 75C | 75C |
| Sound power | - | 53 dB(A) at A7/W35, 58 dB(A) at A7/W55 |
| Dimensions | - | 965 x 1100 x 450 mm (H x W x D) |
| Weight | - | 128 kg (operating) |
Sources: Vaillant aroTHERM plus 10kW, Vaillant aroTHERM plus 5kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the aroTHERM plus 10kW if...
The larger aroTHERM plus, sized for a bigger house with a higher heat loss. It keeps the same R290 refrigerant and 75C maximum flow temperature as the smaller units in the range, so it can usually work with existing radiators.
Full aroTHERM plus 10kW 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 Vaillant aroTHERM plus 10kW and the Vaillant aroTHERM plus 5kW?
The Vaillant aroTHERM plus 10kW is a r290 monobloc air source heat pump, 10 kW heat output; the Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kW heat output.
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