versusindex
MT
Heat pumps · MT

GalmetPrima S 4GT

Galmet Prima S 4GT
Image: Galmetrequest removal

The Galmet Prima S 4GT is an air-to-water heat pump with a SCOP of 4.85 (35 °C) and a sound power level of 56 dB(A).1

Last updated: Technical specifications ⇄ Compare this model
Search this model
SCOP (35 °C)
4.851

Seasonal efficiency: how much heat you get per kWh of electricity across a heating season.

Heating capacity (A7/W35)
4.25kW1
Official source
Outdoor unit sound power
56dB(A)1
Official source
Refrigerant
R321
Official source
Type (source)
Air-to-water1
Official source

Technical specifications

General
Type (source) Air-to-water1
Performance
Heating capacity (A7/W35) 4.25 kW1
Rated output 35 °C 5.52 kW1
Rated output 55 °C 4.4 kW1
Min. outdoor temperature -22 °C1
Efficiency
SCOP (35 °C) 4.851
SCOP (55 °C) 3.311
Seasonal efficiency ηs 35 °C 191 %1
Seasonal efficiency ηs 55 °C 130 %1
Energy label 35 °C A, , , 1
Energy label 55 °C A, , 1
COP A7/W35 5.21
Noise
Outdoor unit sound power 56 dB(A)1
Indoor unit sound power 38 dB(A)1
Refrigerant
Refrigerant R321
Refrigerant GWP 6751
Refrigerant charge 1.5 kg1

Frequently asked questions

Which refrigerant does the Galmet Prima S 4GT use?

The Galmet Prima S 4GT uses R32.1

Sources

  1. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026