Viessmann Vitocal 150 (2.1–4 kW) photo 1

Viessmann Vitocal 150 (2.1–4 kW) photo 2

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Viessmann Vitocal 150 (2.1–4 kW)

Specifications and technical data

✓ BUS eligibleAir Source (ASHP)ResidentialR2902.1–4 kW

Manufacturer	Viessmann
Model	Vitocal 150
Model code	Vitocal 150-A04
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R290 All R290 heat pumps →
Mode	Heating & cooling
Heating capacity	2.1–4 kW
Max heating output (low temp)	3.8 kW at A-7/35
COP (heating)	5 at A7/W35
SCOP (heating)	5 at W35
Operating range (air)	from -10 °C
Heating flow temperature	up to 70 °C
Power input	0.8 kW
Electrical supply	220-240V (Single Phase)
Cooling capacity	4 kW
Max cooling output (high temp)	4 kW at A35/W18
EER (cooling)	4.7 at Not Stated
Dimensions (H×W×D)	841 × 1144 × 600 mm
Operational Weight	162 kg
Sound power level	51 dB(A) (Sound Power LW(A))
Price (unit only)	£4,349.30–£5,230 (checked 28/08/2026)
Data added	2026-07-02
Data source	Manufacturer Data 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.	011-1W0465_01
MCS certification	✓ MCS listed
MCS certificate no.	011-1W0465_01
MCS listing	View on MCS ↗

Free data sheet (PDF) →

Check noise at a neighbour’s window (MCS 020 a) →

View manufacturer page →

Viessmann Vitocal 150 is a 4 kW air source heat pump, providing heating and cooling, using R290 refrigerant.

Where to buy (UK)

UK Supplier	Secon Renewables
UK Supplier	Pirate Heating Supplies
UK Supplier	Beet BG
UK Supplier	GetPlumb
UK Supplier	Solar Trading

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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.