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REMKO HTS 205 Duo

REMKO HTS 205 Duo
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The REMKO HTS 205 Duo is an air-to-water heat pump with a SCOP of 3.93 (35 °C) and a sound power level of 64 dB(A).1,2

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SCOP (35 °C)
3.932

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

Outdoor unit sound power
64dB(A)2
Official source
Refrigerant
R321
Official source
Type (source)
Air-to-water1
Official source
Rated output 35 °C
20kW2
Official source

Technical specifications

General
Type (source)Air-to-water1
Compressors21
Capacity controldrehzahlregelung1
Performance
Rated output 35 °C20 kW2
Rated output 55 °C20 kW2
Efficiency
SCOP (35 °C)3.932
Seasonal efficiency ηs 35 °C154 %2
Seasonal efficiency ηs 55 °C154 %2
Energy label 35 °CA+++2
Energy label 55 °CA+++2
COP A7/W355.111
COP A2/W354.141
COP A-7/W353.351
Noise
Outdoor unit sound power64 dB(A)2
Indoor unit sound power61 dB(A)2
Refrigerant
RefrigerantR321
Refrigerant charge2.2 kg1
Electrical
Max. power input8.84 kW1
Connectivity & smart
SG ReadyYes1

How it ranks

SCOP (35 °C): better than 2% of comparable models in our database (Heat pumps · Air-to-water · ≥ 14 kW; n = 208).

Rank 204 of 209

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.

Manufacturer documentation

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

Similar models

Other brands, same type and a comparable size.

More from REMKO

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How we collect and check this data →

Frequently asked questions

Which refrigerant does the REMKO HTS 205 Duo use?

The REMKO HTS 205 Duo uses R32.1,2

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed Sep 27, 2026
  2. European Product Registry for Energy Labelling (EPREL) – heat pumps — Europese Commissie · accessed Oct 15, 2026