Head to head
Daikin Altherma 3 H HT EPRA16DV3 vs Gledhill Stainless Lite Plus 250
The Daikin Altherma 3 H HT EPRA16DV3 is a r32 monobloc high-temperature air source heat pump, class 16. The Gledhill Stainless Lite Plus 250 is a indirect unvented hot water cylinder, 250 litres.
Last reviewed 13 September 2026
Specifications side by side
| Daikin Altherma 3 H HT EPRA16DV3 | Gledhill Stainless Lite Plus 250 | |
|---|---|---|
| Dimensions | 990 x 1270 x 460 mm (H x W x D) (outdoor unit) | 1744 mm high x 550 mm diameter |
| Weight | 146 kg (single-phase) (outdoor unit) | 38.3 kg empty |
| Heat output | 11.57-11.82 kW | - |
| SCOP | 4.51-4.71 (35C flow), 3.57-3.58 (55C flow) | - |
| Refrigerant | R32, 4.2 kg charge | - |
| Sound pressure | 38 dBA at 3m (standard mode), 35 dBA at 3m (low sound mode) | - |
| Max flow temperature | 70C | - |
| Capacity | - | 250 litres |
| Relief valve setting | - | 6 bar and 95C |
| ErP rating | - | C |
| Warranty | - | 25 years on the cylinder body |
Sources: Daikin Altherma 3 H HT EPRA16DV3, Gledhill Stainless Lite Plus 250. 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 Stainless Lite Plus 250 if...
A 250 litre indirect cylinder for a larger household with higher hot water demand, part of Gledhill's Stainless Lite Plus range. It carries the same 25 year cylinder guarantee as the smaller sizes and comes with an additional off-peak immersion option.
Full Stainless Lite Plus 250 specifications →Common questions
What is the difference between the Daikin Altherma 3 H HT EPRA16DV3 and the Gledhill Stainless Lite Plus 250?
The Daikin Altherma 3 H HT EPRA16DV3 is a r32 monobloc high-temperature air source heat pump, class 16; the Gledhill Stainless Lite Plus 250 is a indirect unvented hot water cylinder, 250 litres.
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