heatpumpdatabaseProduct data sheetheatpumpdatabase.com
Kensa Shoebox 3kW
Model code: S3-P0K
✓ BUS eligible✓ MCS listedGround Source (GSHP)ResidentialHeating only
Heating capacity
3 kW
SCOP
3.72
W55
COP
3.54
B0/W35
Max flow temp
65°C
Sound power
47 dB(A)
Refrigerant
R134a
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: BBA 0055/31
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: BBA 0055/31
| General | |
|---|---|
| Heat pump type | Ground Source (GSHP) |
| Application | Residential |
| Refrigerant | R134a |
| Mode | Heating only |
| Heating performance | |
| Heating capacity | 3 kW |
| COP (heating) | 3.54 at B0/W35 |
| SCOP (heating) | 3.72 at W55 |
| Operating range (air) | -5 to 25 °C |
| Heating flow temperature | up to 65 °C |
| Electrical, acoustic and physical | |
| Power input | 0.8 kW |
| Electrical supply | 220-240V (Single Phase) |
| Sound power level | 47 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 515 × 480 × 360 mm |
| Operational Weight | 60 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.