Head to head
Gledhill Stainless Lite Plus 150 vs Viessmann Vitocal 150-A13
The Gledhill Stainless Lite Plus 150 is a indirect unvented hot water cylinder, 150 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 150 | Viessmann Vitocal 150-A13 | |
|---|---|---|
| Dimensions | 1118 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 | 26 kg empty, 174 kg full | 162 kg (single fan) (outdoor unit) |
| Capacity | 150 litres | - |
| Heat-up time | 25 minutes | - |
| Relief valve setting | 6 bar and 95C | - |
| Immersion heater | 3kW incoloy immersion, back-up | - |
| ErP rating | B | - |
| 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 150, 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 150 if...
A 150 litre indirect cylinder from Gledhill's Stainless Lite Plus range, sized for a small to medium house. Its corrugated coil reheats in about 25 minutes, and the range carries a 25 year guarantee on the cylinder body.
Full Stainless Lite Plus 150 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 150 and the Viessmann Vitocal 150-A13?
The Gledhill Stainless Lite Plus 150 is a indirect unvented hot water cylinder, 150 litres; the Viessmann Vitocal 150-A13 is a r290 air source heat pump, 8.1 kW heat output.
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