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Kronoterm VERSI-I 0209-K1 HT / HK UF E

The Kronoterm VERSI-I 0209-K1 HT / HK UF E is an air-to-water heat pump with a SCOP of 4.74 (35 °C) and a sound power level of 58 dB(A).1,2

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SCOP (35 °C)
4.741

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

Heating capacity (A7/W35)
6.13kW2
Official source
Outdoor unit sound power
58dB(A)1
Official source
Refrigerant
R452B1
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)6.13 kW2
Rated output 35 °C6.5 kW1
Rated output 55 °C6.1 kW1
Min. outdoor temperature-22 °C2
Efficiency
SCOP (35 °C)4.741
SCOP (55 °C)3.61
Seasonal efficiency ηs 35 °C186.4 %1
Seasonal efficiency ηs 55 °C140.9 %1
Energy label 35 °CA+++2
Energy label 55 °CA++2
COP A7/W354.81
COP A2/W353.521
COP A-7/W352.841
Noise
Outdoor unit sound power58 dB(A)1
Indoor unit sound power36 dB(A)1
Refrigerant
RefrigerantR452B1
Refrigerant GWP6982
Refrigerant charge5 kg1
Electrical
Max. power input3.6 kW1
Connectivity & smart
SG ReadyYes1

How it ranks

SCOP (35 °C): better than 54% of comparable models in our database (Heat pumps · Air-to-water · 6–8 kW; n = 182).

Rank 82 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.

Similar models

Other brands, same type and a comparable size.

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Frequently asked questions

Which refrigerant does the Kronoterm VERSI-I 0209-K1 HT / HK UF E use?

The Kronoterm VERSI-I 0209-K1 HT / HK UF E uses R452B.1,2

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed Oct 18, 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed Sep 29, 2026