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STIEBEL ELTRONWPL-A 10 HK 400 Premium

The STIEBEL ELTRON WPL-A 10 HK 400 Premium is an air-to-water heat pump with a SCOP of 4.31 (35 °C) and a sound power level of 55 dB(A).1,2,3

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SCOP (35 °C)
4.311

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

Heating capacity (A7/W35)
8.24kW3
Official source
Outdoor unit sound power
55dB(A)1
Official source
Refrigerant
R452B1
Official source
Type (source)
Air-to-water1
Official source

Technical specifications

General
Type (source) Air-to-water1
Compressors 11
Capacity control drehzahlregelung1
Performance
Heating capacity (A7/W35) 8.24 kW3
Rated output 35 °C 11.2 kW1
Rated output 55 °C 11.6 kW1
Efficiency
SCOP (35 °C) 4.311
SCOP (55 °C) 3.451
Seasonal efficiency ηs 35 °C 169 %1
Seasonal efficiency ηs 55 °C 135 %1
Energy label 35 °C A, , 3
Energy label 55 °C A, , 3
COP A7/W35 4.611
COP A2/W35 3.821
COP A-7/W35 3.361
Noise
Outdoor unit sound power 55 dB(A)1
Refrigerant
Refrigerant R452B1
Refrigerant GWP 6983
Refrigerant charge 5 kg1
Electrical
Max. power input 5.5 kW1
Connectivity & smart
SG Ready Yes1
Grants & market
ISDE grant (NL) 3,275 €2

Manufacturer documentation

External links to STIEBEL ELTRON's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

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Frequently asked questions

Which refrigerant does the STIEBEL ELTRON WPL-A 10 HK 400 Premium use?

The STIEBEL ELTRON WPL-A 10 HK 400 Premium uses R452B.1,2,3

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
  2. ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026
  3. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026