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Daikin Altherma 3 H HT EPRA16DV3 vs Viessmann Vitodens 050-W 30kW combi

The Daikin Altherma 3 H HT EPRA16DV3 is a r32 monobloc high-temperature air source heat pump, class 16. The Viessmann Vitodens 050-W 30kW combi is a gas combi boiler, 29.6 kw hot water output.

Last reviewed 13 September 2026

Specifications side by side

Daikin Altherma 3 H HT EPRA16DV3Viessmann Vitodens 050-W 30kW combi
Dimensions990 x 1270 x 460 mm (H x W x D) (outdoor unit)700 x 400 x 300 mm
Weight146 kg (single-phase) (outdoor unit)35 kg
Heat output11.57-11.82 kW-
SCOP4.51-4.71 (35C flow), 3.57-3.58 (55C flow)-
RefrigerantR32, 4.2 kg charge-
Sound pressure38 dBA at 3m (standard mode), 35 dBA at 3m (low sound mode)-
Max flow temperature70C-
Hot water output-29.6 kW
Central heating output-25 kW
ErP class-A
Seasonal efficiency-92%
Warranty-3 years
Hot water flow rate-12.2 litres per minute

Sources: Daikin Altherma 3 H HT EPRA16DV3, Viessmann Vitodens 050-W 30kW combi. 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 Vitodens 050-W 30kW combi if...

A gas combi boiler with 29.6 kW of hot water output, sized for a three-bed house with one or two bathrooms. It delivers about 12.2 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 3 years. Seasonal efficiency is 92%.

Full Vitodens 050-W 30kW combi specifications →

Common questions

What is the difference between the Daikin Altherma 3 H HT EPRA16DV3 and the Viessmann Vitodens 050-W 30kW combi?

The Daikin Altherma 3 H HT EPRA16DV3 is a r32 monobloc high-temperature air source heat pump, class 16; the Viessmann Vitodens 050-W 30kW combi is a gas combi boiler, 29.6 kW hot water output.

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