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Wolf CHA-07 SE/400V

The Wolf CHA-07 SE/400V is an air-to-water heat pump with a SCOP of 4.93 (35 °C) and a sound power level of 52 dB(A).1,2,3

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SCOP (35 °C)
4.933

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

Heating capacity (A7/W35)
4.5kW2
Official source
Outdoor unit sound power
52dB(A)3
Official source
Refrigerant
R2901
Official source
Type (source)
Air-to-water1
Official source

Technical specifications

General
Type (source)Air-to-water1
Compressors11
Capacity controldrehzahlregelung1
Performance
Heating capacity (A7/W35)4.5 kW2
Rated output 35 °C6 kW3
Rated output 55 °C6 kW3
Min. outdoor temperature-22 °C2
Efficiency
SCOP (35 °C)4.933
SCOP (55 °C)3.783
Seasonal efficiency ηs 35 °C194 %3
Seasonal efficiency ηs 55 °C148 %3
Energy label 35 °CA+++3
Energy label 55 °CA++3
COP A7/W355.471
COP A2/W354.541
COP A-7/W352.731
Noise
Outdoor unit sound power52 dB(A)3
Indoor unit sound power52 dB(A)3
Refrigerant
RefrigerantR2901
Refrigerant GWP32
Refrigerant charge3.1 kg1
Electrical
Max. power input4.8 kW1
Connectivity & smart
SG ReadyYes1

How it ranks

SCOP (35 °C): better than 69% of comparable models in our database (Heat pumps · Air-to-water · 6–8 kW; n = 182).

Rank 51 of 183

Compared with every model on VersusIndex in the same group with a known value; equal values do not count as better. This says nothing about price, installation or reliability.

Variants

This model is registered in 2 combinations (for example with a different indoor unit or cylinder) with exactly the same performance. All figures on this page apply to each of these types. The part of the type number that differs is in bold; small differences (e.g. cylinder volume or anode) are listed after it:

  • CHA-07 SE/400V
  • CHA-07/400V — Indoor unit sound power: 32 dB(A)

Compare with

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Other brands, same type and a comparable size.

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How we collect and check this data →

Frequently asked questions

Which refrigerant does the Wolf CHA-07 SE/400V use?

The Wolf CHA-07 SE/400V uses R290.1,2,3

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed Sep 27, 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed Oct 18, 2026
  3. European Product Registry for Energy Labelling (EPREL) – heat pumps — Europese Commissie · accessed Oct 15, 2026