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Viessmann Vitocal 242-G (BWT 241.A10)

Specifications and technical data

✓ BUS eligibleGround Source (GSHP)ResidentialR410A10.4 kW

Manufacturer	Viessmann
Model	Vitocal 242-G
Model code	BWT 241.A10
Heat pump type	Ground Source (GSHP) All Ground Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R410A All R410A heat pumps →
Mode	Heating only
Heating capacity	10.4 kW
Max heating output (low temp)	10 kW at B0/W35
COP (heating)	4.3 at B0/W35
Heating flow temperature	up to 60 °C
Electrical supply	380-415V (Three Phase)
Dimensions (H×W×D)	2075 × 600 × 680 mm
Operational Weight	266 kg
Sound power level	43 dB(A) (Sound Power LW(A))
Data added	2026-10-21
Data source	Viessmann Vitocal 242-G BWT 241.A installation and service instructions 5601 598 GB (via Manualslib)
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.	BSI KM 554512/06/3
MCS certification	✓ MCS listed
MCS certificate no.	BSI KM 554512/06/3

Free data sheet (PDF) →

Viessmann Vitocal 242-G BWT 241.A10 compact brine-to-water heat pump with integral 220 L solar DHW cylinder, 10 kW at B0/W35, R410A, 400 V.

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.