Head to head
Gledhill Stainless Lite Plus 150 vs NIBE S2125 Model 12
The Gledhill Stainless Lite Plus 150 is a indirect unvented hot water cylinder, 150 litres. The NIBE S2125 Model 12 is a air/water heat pump, up to 8.4 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Gledhill Stainless Lite Plus 150 | NIBE S2125 Model 12 | |
|---|---|---|
| Dimensions | 1118 mm high x 550 mm diameter | 1070 x 1130 x 820 mm (H x W x D) |
| Weight | 26 kg empty, 174 kg full | 160 kg |
| 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 | - | 6.80-7.60 kW (average climate), 8.4 kW (cold climate) |
| SCOP | - | 5.0 at 35C, 3.8 at 55C (average climate); 4.2 at 35C, 3.4 at 55C (cold climate) |
| Sound power | - | 49 dB(A) at nominal rating (EN12102) |
| Max flow temperature | - | up to 75C |
Sources: Gledhill Stainless Lite Plus 150, NIBE S2125 Model 12. 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 S2125 Model 12 if...
The larger NIBE S2125, sized for a medium house and rated to hold output down to -25C outdoor temperature. It shares its cabinet size with the smaller model but weighs 10 kg more for the larger compressor.
Full S2125 Model 12 specifications →Common questions
What is the difference between the Gledhill Stainless Lite Plus 150 and the NIBE S2125 Model 12?
The Gledhill Stainless Lite Plus 150 is a indirect unvented hot water cylinder, 150 litres; the NIBE S2125 Model 12 is a air/water heat pump, up to 8.4 kW heat output.
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