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TCL THF-4D/HBpO-AF+SMKLd-6D/3HBp-AF

The TCL THF-4D/HBpO-AF+SMKLd-6D/3HBp-AF is an air-to-water heat pump with a SCOP of 4.62 (35 °C) and a sound power level of 56 dB(A).1,2

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SCOP (35 °C)
4.622

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

Heating capacity (A7/W35)
4kW1
Official source
Outdoor unit sound power
56dB(A)2
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)4 kW1
Rated output 35 °C6 kW2
Rated output 55 °C5 kW2
Min. outdoor temperature-22 °C1
Efficiency
SCOP (35 °C)4.622
SCOP (55 °C)3.582
Seasonal efficiency ηs 35 °C182 %2
Seasonal efficiency ηs 55 °C140 %2
Energy label 35 °CA+++2
Energy label 55 °CA++2
COP A7/W355.11
Noise
Outdoor unit sound power56 dB(A)2
Indoor unit sound power56 dB(A)2
Refrigerant
RefrigerantR321
Refrigerant GWP6751
Refrigerant charge1.3 kg1

How it ranks

SCOP (35 °C): better than 43% of comparable models in our database (Heat pumps · Air-to-water · 6–8 kW; n = 182).

Rank 102 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 TCL THF-4D/HBpO-AF+SMKLd-6D/3HBp-AF use?

The TCL THF-4D/HBpO-AF+SMKLd-6D/3HBp-AF uses R32.1,2

Sources

  1. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed Sep 29, 2026
  2. European Product Registry for Energy Labelling (EPREL) – heat pumps — Europese Commissie · accessed Oct 15, 2026