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Ochsner GMLW 25 Plus
Model code: GMLW 25 Plus
✓ BUS eligible✓ MCS listedAir Source (ASHP)CommercialHeating and Cooling
Heating capacity
28.4 kW
SCOP
4.42
W35
COP
4.6
A7/W35
Max flow temp
65°C
Sound power
55.5 dB(A)
Refrigerant
R407C
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: BBA 0037/08
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: BBA 0037/08
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Commercial |
| Refrigerant | R407C |
| Mode | Heating and Cooling |
| Heating performance | |
| Heating capacity | 28.4 kW |
| Max heating output (low temp) | 21.8 kW at A2/W35 |
| COP (heating) | 4.6 at A7/W35 |
| SCOP (heating) | 4.42 at W35 |
| Operating range (air) | -22 to 40 °C |
| Heating flow temperature | up to 65 °C |
| Cooling performance | |
| Cooling capacity | 17.9 kW |
| Max cooling output (high temp) | 17.2 kW at A30/W7 |
| EER (cooling) | 3.1 at A30/W7 |
| Electrical, acoustic and physical | |
| Electrical supply | 380-415V (Three Phase) |
| Sound power level | 55.5 dB(A) (Sound Power LW(A)) |
Test conditions: A = outdoor air °C, W = flow water °C (e.g. A7/W35 = 7°C air, 35°C flow). Compare COP and SCOP only at the same conditions.