Head to head
Gledhill Stainless Lite Plus 250 vs Viessmann Vitocal 150-A13
The Gledhill Stainless Lite Plus 250 is a indirect unvented hot water cylinder, 250 litres. The Viessmann Vitocal 150-A13 is a r290 air source heat pump, 8.1 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Gledhill Stainless Lite Plus 250 | Viessmann Vitocal 150-A13 | |
|---|---|---|
| Dimensions | 1744 mm high x 550 mm diameter | 920 x 450 x 360 mm (H x W x D) (indoor unit); 841 x 1144 x 600 mm (H x W x D, single fan) (outdoor unit) |
| Weight | 38.3 kg empty | 162 kg (single fan) (outdoor unit) |
| Capacity | 250 litres | - |
| Relief valve setting | 6 bar and 95C | - |
| ErP rating | C | - |
| Warranty | 25 years on the cylinder body | - |
| Heat output | - | 8.1 kW at A7/W35 |
| COP | - | 4.7-5.0 at A7/W35 |
| Refrigerant | - | R290 (propane), GWP 0.02 |
| Sound power | - | 51 dB(A) assessed total at A7/W55 |
| Max flow temperature | - | 70C down to -10C outdoor |
Sources: Gledhill Stainless Lite Plus 250, Viessmann Vitocal 150-A13. Figures vary by model year and options, so check with the supplier before you commit.
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 →Buy or hire the Vitocal 150-A13 if...
A Vitocal 150-A monobloc-style split heat pump using the natural refrigerant R290, rated at 8.1kW and reaching a 70C flow for boiler-replacement work. Viessmann-trained installers can extend the standard warranty on registration.
Full Vitocal 150-A13 specifications →Common questions
What is the difference between the Gledhill Stainless Lite Plus 250 and the Viessmann Vitocal 150-A13?
The Gledhill Stainless Lite Plus 250 is a indirect unvented hot water cylinder, 250 litres; the Viessmann Vitocal 150-A13 is a r290 air source heat pump, 8.1 kW heat output.
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