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STIEBEL ELTRONLWZ 8 S Trend

The STIEBEL ELTRON LWZ 8 S Trend is an air-to-water heat pump with a SCOP of 3.95 (35 °C) and a sound power level of 55 dB(A).1

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SCOP (35 °C)
3.951

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

Heating capacity (A7/W35)
4.4kW1
Official source
Outdoor unit sound power
55dB(A)1
Official source
Refrigerant
R410A1
Official source
Type (source)
Air-to-water1
Official source

Technical specifications

General
Type (source) Air-to-water1
Performance
Heating capacity (A7/W35) 4.4 kW1
Rated output 35 °C 10 kW1
Rated output 55 °C 7 kW1
Min. outdoor temperature -20 °C1
Efficiency
SCOP (35 °C) 3.951
SCOP (55 °C) 3.11
Seasonal efficiency ηs 35 °C 155 %1
Seasonal efficiency ηs 55 °C 121 %1
Energy label 35 °C A, , 1
Energy label 55 °C A, 1
COP A7/W35 4.741
Noise
Outdoor unit sound power 55 dB(A)1
Indoor unit sound power 52 dB(A)1
Refrigerant
Refrigerant R410A1
Refrigerant GWP 2,0881
Refrigerant charge 2.95 kg1

Frequently asked questions

Which refrigerant does the STIEBEL ELTRON LWZ 8 S Trend use?

The STIEBEL ELTRON LWZ 8 S Trend uses R410A.1

Sources

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