heatpumpdatabaseProduct data sheetheatpumpdatabase.com
Ochsner GMLW
Model code: GMLW 9 Plus VX
✓ BUS eligibleAir Source (ASHP)ResidentialHeating and Cooling
Heating capacity
11.1 kW
SCOP
3.84
W35
COP
4.3
A7/W35
Max flow temp
65°C
Sound power
44.5 dB(A)
Refrigerant
R407C
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: BBA 0037/17
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
No MCS listing recorded.
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R407C |
| Mode | Heating and Cooling |
| Heating performance | |
| Heating capacity | 11.1 kW |
| Max heating output (low temp) | 6.9 kW at A-7/W35 |
| COP (heating) | 4.3 at A7/W35 |
| SCOP (heating) | 3.84 at W35 |
| Operating range (air) | -24 to 40 °C |
| Heating flow temperature | up to 65 °C |
| Cooling performance | |
| Cooling capacity | 9.5 kW |
| Max cooling output (high temp) | 8.6 kW at A30/W7 |
| EER (cooling) | 2.8 at A30/W7 |
| Electrical, acoustic and physical | |
| Electrical supply | 220-240V (Single Phase) |
| Sound power level | 44.5 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 1150 × 600 × 650 mm |
| Operational Weight | 124 kg |
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.