NIBE
S2125 Model 12
Air/water heat pump, up to 8.4 kW heat output
Last reviewed 13 September 2026
Specifications
| 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) |
| Dimensions | 1070 x 1130 x 820 mm (H x W x D) |
| Weight | 160 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
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.
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