Kensa Shoebox NX 3kW

Specifications and technical data

Also known as: Shoebox NX 3

✓ BUS eligibleGround Source (GSHP)ResidentialR134a2.85 kW

Manufacturer	Kensa
Model	Shoebox NX 3kW
Model code	S3NX-P0K
Heat pump type	Ground Source (GSHP) All Ground Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R134a All R134a heat pumps →
Mode	Heating only
Heating capacity	2.85 kW
COP (heating)	4.4 at B0/W35
SCOP (heating)	4.53 at W55
Operating range (air)	-5 to 15 °C
Heating flow temperature	up to 65 °C
Power input	0.65 kW
Electrical supply	220-240V (Single Phase)
Dimensions (H×W×D)	627 × 554 × 570 mm
Operational Weight	86 kg
Sound power level	40.5 dB(A) (Sound Power LW(A))
Price (unit only)	~£5,295 (checked 2026-08-03)
Data added	2026-06-27
Data source	Kensa technical information sheet
Verification	Verified by a human
Boiler Upgrade Scheme	✓ BUS eligible — Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026). Grant also needs an MCS-certified installer and a qualifying system design. Funding guide
PEL certificate no.	BBA 0055/46
MCS certification	✓ MCS listed
MCS certificate no.	BBA 0055/46
MCS listing	View on MCS ↗

Free data sheet (PDF) →

View manufacturer page →

Kensa Shoebox NX 3kW is a 2.85 kW ground source heat pump, using R134a refrigerant.

Where to buy (UK)

Availability	Direct sales from manufacturer: Kensa

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Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.