NIBE
S2125 Model 8
Air/water heat pump, up to 5.4 kW heat output
Last reviewed 9 November 2026
Specifications
| Heat output | 5.33 kW (average climate), 5.4 kW (cold climate) |
| SCOP | 5.0 at 35C, 3.7 at 55C (average climate); 4.1 at 35C, 3.2 at 55C (cold climate) |
| Sound power | 49 dB(A) at nominal rating (EN12102) |
| Dimensions | 1070 x 1130 x 820 mm (H x W x D) |
| Weight | 150 kg |
| Max flow temperature | up to 75C |
Figures taken from the manufacturer: source. Specifications change by model year and configuration - confirm with the supplier before relying on them.
Who uses it
A smaller NIBE S2125 rated to keep working in cold climates, reaching up to 65C flow even at -25C outdoors. It suits a smaller house where cold-weather reliability matters more than raw output.
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