Head to head
Daikin Altherma 3 H HT EPRA14DV3 vs Vaillant aroTHERM plus 10kW
The Daikin Altherma 3 H HT EPRA14DV3 is a r32 monobloc high-temperature air source heat pump, class 14. The Vaillant aroTHERM plus 10kW is a r290 monobloc air source heat pump, 10 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Daikin Altherma 3 H HT EPRA14DV3 | Vaillant aroTHERM plus 10kW | |
|---|---|---|
| Heat output | 10.17 kW (nominal heating) | 10 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 |
| Max flow temperature | 70C | 75C |
| Sound pressure | 43 dBA (heating) | - |
| Dimensions | 990 x 1270 x 460 mm (H x W x D) (outdoor unit) | - |
| Weight | 146 kg (single-phase) (outdoor unit) | - |
Sources: Daikin Altherma 3 H HT EPRA14DV3, Vaillant aroTHERM plus 10kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Altherma 3 H HT EPRA14DV3 if...
A high-temperature monobloc heat pump reaching a 70C flow, aimed squarely at replacing a boiler on an existing radiator system without upgrading radiators. Its class 14 size gives around 10.2kW of heat output, suiting a three or four-bed house.
Full Altherma 3 H HT EPRA14DV3 specifications →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 →Common questions
What is the difference between the Daikin Altherma 3 H HT EPRA14DV3 and the Vaillant aroTHERM plus 10kW?
The Daikin Altherma 3 H HT EPRA14DV3 is a r32 monobloc high-temperature air source heat pump, class 14; the Vaillant aroTHERM plus 10kW is a r290 monobloc air source heat pump, 10 kW heat output.
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