Head to head
Daikin Altherma 3 H HT EPRA16DV3 vs Vaillant aroTHERM plus 5kW
The Daikin Altherma 3 H HT EPRA16DV3 is a r32 monobloc high-temperature air source heat pump, class 16. 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
| Daikin Altherma 3 H HT EPRA16DV3 | Vaillant aroTHERM plus 5kW | |
|---|---|---|
| Heat output | 11.57-11.82 kW | 5 kW |
| SCOP | 4.51-4.71 (35C flow), 3.57-3.58 (55C flow) | up to 5.03 |
| Refrigerant | R32, 4.2 kg charge | R290 (propane), low GWP |
| Dimensions | 990 x 1270 x 460 mm (H x W x D) (outdoor unit) | 965 x 1100 x 450 mm (H x W x D) |
| Weight | 146 kg (single-phase) (outdoor unit) | 128 kg (operating) |
| Max flow temperature | 70C | 75C |
| Sound pressure | 38 dBA at 3m (standard mode), 35 dBA at 3m (low sound mode) | - |
| Sound power | - | 53 dB(A) at A7/W35, 58 dB(A) at A7/W55 |
Sources: Daikin Altherma 3 H HT EPRA16DV3, Vaillant aroTHERM plus 5kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Altherma 3 H HT EPRA16DV3 if...
The next size up in the Altherma 3 H HT range at around 11.7kW, still reaching a 70C flow for boiler-replacement jobs. It shares the same outdoor cabinet size and weight as the class 14 unit, so it suits a larger house without a larger footprint.
Full Altherma 3 H HT EPRA16DV3 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 Daikin Altherma 3 H HT EPRA16DV3 and the Vaillant aroTHERM plus 5kW?
The Daikin Altherma 3 H HT EPRA16DV3 is a r32 monobloc high-temperature air source heat pump, class 16; the Vaillant aroTHERM plus 5kW is a r290 monobloc air source heat pump, 5 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.