Heat pumps · MT

VaillantVWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS

Vaillant VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS
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The Vaillant VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS is an air-to-water heat pump with a SCOP of 4.63 (35 °C) and a sound power level of 48 dB(A).1

Last updated: Technical specifications ⇄ Compare this model

Key figures

SCOP (35 °C)
4.631

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

Heating capacity (A7/W35)
3.54kW1
Official source
Outdoor unit sound power
48dB(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) 3.54 kW1
Rated output 35 °C 3.44 kW1
Rated output 55 °C 3.65 kW1
Min. outdoor temperature -20 °C1
Efficiency
SCOP (35 °C) 4.631
SCOP (55 °C) 3.241
Seasonal efficiency ηs 35 °C 182 %1
Seasonal efficiency ηs 55 °C 127 %1
Energy label 35 °C A, , , 1
Energy label 55 °C A, , 1
COP A7/W35 5.011
Noise
Outdoor unit sound power 48 dB(A)1
Indoor unit sound power 42 dB(A)1
Refrigerant
Refrigerant R321
Refrigerant GWP 6751
Refrigerant charge 1.3 kg1

Variants

This model is registered in 8 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:

  • VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS
  • VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS + VIH RW 250/2 B
  • VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS + VIH RW 300/3 BR
  • VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS S1
  • VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS S1 + VIH RW 250/2 B
  • VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS S1 + VIH RW 300/3 BR
  • VWL 35/8.2 AS 230V S2 + VWL 58/8.2 IS — Indoor unit sound power: 41 dB(A)
  • VWL 35/8.2 AS 230V S2 + VWL 58/8.2 IS S5 — Indoor unit sound power: 41 dB(A)

Manufacturer documentation

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

Frequently asked questions

Which refrigerant does the Vaillant VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS use?

The Vaillant VWL 35/8.2 AS 230V S2 + VWL 57/8.2 IS uses R32.1

Sources

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