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ThermiaLegend 17 Duo 6 400V (Wasser / Wasser)

The Thermia Legend 17 Duo 6 400V (Wasser / Wasser) is a heat pump with SCOP (35 °C) 5.51 and refrigerant R452B.1

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SCOP (35 °C)
5.511

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

Refrigerant
R452B1
Official source
Type (source)
Water-to-water1
Official source
Rated output 35 °C
21.73kW1
Official source
Rated output 55 °C
24.86kW1
Official source

Technical specifications

General
Type (source) Water-to-water1
Compressors 11
Capacity control keine1
Performance
Rated output 35 °C 21.73 kW1
Rated output 55 °C 24.86 kW1
Efficiency
SCOP (35 °C) 5.511
SCOP (55 °C) 4.651
Seasonal efficiency ηs 35 °C 213 %1
Seasonal efficiency ηs 55 °C 178 %1
Noise
Indoor unit sound power 46 dB(A)1
Refrigerant
Refrigerant R452B1
Refrigerant charge 1.25 kg1
Electrical
Max. power input 3.95 kW1
Connectivity & smart
SG Ready Yes1

Frequently asked questions

What is the SCOP (35 °C) of the Thermia Legend 17 Duo 6 400V (Wasser / Wasser)?

The SCOP (35 °C) of the Thermia Legend 17 Duo 6 400V (Wasser / Wasser) is 5.51.1

Which refrigerant does the Thermia Legend 17 Duo 6 400V (Wasser / Wasser) use?

The refrigerant of the Thermia Legend 17 Duo 6 400V (Wasser / Wasser) is R452B.1

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026