Head to head
Vaillant aroTHERM plus 5kW vs Vaillant aroTHERM plus 7kW
The Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kw heat output. The Vaillant aroTHERM plus 7kW is a r290 monobloc air source heat pump, 7 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Vaillant aroTHERM plus 5kW | Vaillant aroTHERM plus 7kW | |
|---|---|---|
| Heat output | 5 kW | 7 kW |
| SCOP | up to 5.03 | up to 5.03 |
| Refrigerant | R290 (propane), low GWP | R290 (propane), low GWP |
| Sound power | 53 dB(A) at A7/W35, 58 dB(A) at A7/W55 | 58 dB(A) at A7/W35, 60 dB(A) at A7/W55 |
| Dimensions | 965 x 1100 x 450 mm (H x W x D) | 1565 x 1100 x 450 mm (H x W x D) |
| Weight | 128 kg (operating) | 194 kg (operating) |
| Max flow temperature | 75C | 75C |
Sources: Vaillant aroTHERM plus 5kW, Vaillant aroTHERM plus 7kW. Figures vary by model year and options, so check with the supplier before you commit.
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 →Buy or hire the aroTHERM plus 7kW if...
A mid-size aroTHERM plus for a typical three-bed house. It is taller and heavier than the 5kW unit, reflecting a larger outdoor cabinet, and shares the same R290 refrigerant and 75C maximum flow temperature.
Full aroTHERM plus 7kW specifications →Common questions
What is the difference between the Vaillant aroTHERM plus 5kW and the Vaillant aroTHERM plus 7kW?
The Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 kW heat output; the Vaillant aroTHERM plus 7kW is a r290 monobloc air source heat pump, 7 kW heat output.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.