NIBE
S2125 Model 12
Air/water heat pump, up to 8.4 kW heat output
Last reviewed 9 November 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.
Looking for one?
Find the firms covering your area that hire and sell NIBE, and ask what is on the yard today.
NIBE suppliersCompare the NIBE S2125 Model 12
vs Mitsubishi Electric Ecodan PUZ-WM60VAA 6.0kWvs Mitsubishi Electric Ecodan PUZ-WM85VAA 8.5kWvs Mitsubishi Electric Ecodan PUZ-WM112VAA 11.2kWvs Vaillant aroTHERM plus 5kWvs Vaillant aroTHERM plus 7kWvs Vaillant aroTHERM plus 10kWvs Daikin Altherma 3 H HT EPRA14DV3vs Daikin Altherma 3 H HT EPRA16DV3vs Samsung EHS Mono HT Quiet 8.0kWvs Samsung EHS Mono HT Quiet 12.0kWvs Samsung EHS Mono HT Quiet 14.0kWvs Grant Aerona3 R32 6kWvs Grant Aerona3 R32 10kWvs Grant Aerona3 R32 13kWvs Grant Aerona3 R32 17kWvs NIBE S2125 Model 8vs Viessmann Vitocal 150-A06vs Viessmann Vitocal 150-A10vs Viessmann Vitocal 150-A13vs Worcester Bosch Greenstar 5800i AW 5kWvs Worcester Bosch Greenstar 5800i AW 7kWvs LG Therma V Monobloc S 5.50kWvs LG Therma V Monobloc S 7.00kWvs LG Therma V Monobloc S 9.00kW
Other NIBE models
GetBrent is an independent directory and is not a dealer for, nor affiliated with, NIBE. Model and brand names are the trademarks of their owners, used here only to identify the products they refer to.