LG Therma V R32 Monobloc S 12 kW (HM121MR.U34)

Specifications and technical data

Air Source (ASHP)ResidentialR3212 kW

Manufacturer	LG
Model	Therma V R32 Monobloc S 12 kW (HM121MR.U34)
Model code	HM121MR.U34
Heat pump type	Air Source (ASHP)
Application	Residential
Refrigerant	R32
Mode	Heating & cooling
Heating capacity	12 kW
COP	4.9 at A7/W35
SCOP	4.67 at W35
EER (cooling)	4.75
Operating range (air)	-25 to 35 °C
Flow temperature	15–65 °C
Power input	2.4 kW
Dimensions (H×W×D)	1380 × 1239 × 330 mm
Weight	119.1 kg
Sound power level	60 dB(A) (LwA rated)
Data added	2026-06
Data source	LG THERMA V R32 Monobloc S Technical Data Table (2024, EU)

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Notes

LG THERMA V R32 Monobloc S air-to-water heat pump, 12 kW, 1Ø.

THERMA V R32 Monobloc S (2nd-gen, Silence Supreme). 1Ø supply. COP 4.9 at A7/W35; 3.65 at A2/W35; 2.9 at A7/W55. SCOP 4.67 (W35) / 3.47 (W55). Cooling EER 4.75 at A35/W18. ErP A+++ (W35) / A++ (W55). DHW to 80C with booster heater. R32 charge 2000 g. Sound power 60 dB(A) rated. Quiet Mark certified (5-12 kW).

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse

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Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.