Viessmann logo

Viessmann Vitocal 300-G (58.9 kW)

Specifications and technical data

Also known as: BWS 301.A45

Ground Source (GSHP)ResidentialR410A58.9 kW
ManufacturerViessmann
ModelVitocal 300-G
Model codeBW 301.A45
Heat pump typeGround Source (GSHP) All Ground Source heat pumps →
ApplicationResidential All Residential heat pumps →
RefrigerantR410A All R410A heat pumps →
ModeHeating only
Heating capacity58.9 kW
Max heating output (low temp)58.9 kW at B0/W35
COP (heating)4.6 at B0/W35
Operating range (air)-10 to 25 °C
Heating flow temperatureup to 60 °C
Electrical supply380-415V (Three Phase)
Dimensions (H×W×D)1267 × 780 × 1085 mm
Operational Weight298 kg
Sound power level46 dB(A) (Sound Power LW(A))
Data added2026-09-26
Data sourceManufacturer documentation (Viessmann)
VerificationVerified by a human
MCS certification✓ MCS listed
MCS certificate no.BSI KM 554512/07/3; BSI KM 554512/07/6

Free data sheet (PDF) →

View manufacturer page →

Viessmann Vitocal 300-G BW 301.A45, brine-to-water heat pump, R410A. 42.8 kW at B0/W35 with a COP of 4.6. Flow to 60 C.

Where to buy (UK)

UK SupplierSecon Renewables
UK SupplierPirate Heating Supplies
UK SupplierBeet BG
UK SupplierGetPlumb
UK SupplierSolar Trading

✎ Suggest a correction to this data

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

Alternatives to consider

Three Ground Source (GSHP) heat pumps from other manufacturers closest in capacity to this one.

More from Viessmann

Other Ground Source (GSHP) heat pumps

Compare with other products

Open the interactive database →

The Viessmann name and logo are trademarks of their respective owner and are used here for identification purposes only.