heatpumpdatabaseProduct data sheetheatpumpdatabase.com
Kensa Shoebox NX 5kW
Model code: S5-P0K-NX
✓ BUS eligible✓ MCS listedGround Source (GSHP)ResidentialHeating only
Heating capacity
5.8 kW
SCOP
4.6
W55
COP
4.36
B0/W35
Max flow temp
64°C
Sound power
51.2 dB(A)
Refrigerant
R407C
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: BBA 0055/45
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: BBA 0055/45
| General | |
|---|---|
| Heat pump type | Ground Source (GSHP) |
| Application | Residential |
| Refrigerant | R407C |
| Mode | Heating only |
| Heating performance | |
| Heating capacity | 5.8 kW |
| COP (heating) | 4.36 at B0/W35 |
| SCOP (heating) | 4.6 at W55 |
| Operating range (air) | -5 to 25 °C |
| Heating flow temperature | up to 64 °C |
| Electrical, acoustic and physical | |
| Power input | 1.35 kW |
| Electrical supply | 220-240V (Single Phase) |
| Sound power level | 51.2 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 627 × 554 × 570 mm |
| Operational Weight | 93 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.