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HEAT PUMPS

LG HM161MRS

UK configuration

Exact manufacturer unit purpose
R32 Monobloc S II, 1Ø, 16kW
Manufacturer heating capacities at separate operating points
16.00 kW (A+7/W+35); 13.80 kW (A+2/W+35); 12.00 kW (A+7/W+55)
Manufacturer cooling capacities at separate operating points
16.00 kW (A+35/W+18); 15.00 kW (A+35/W+7)

LG HM161MRS in the exact manufacturer-listed UK configuration.

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THE ACTUAL PRODUCT
LG Air to Water Heat Pumps  HM161MRS UB40, front view of a black outdoor unit featuring a grey wavy grille.
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with LG HM161MR U34

Specifications checked 20 Oct 2026Manufacturer specifications, not a hands-on test.

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The nearest checked heat pumps by key specifications, with what differs from the LG HM161MRS. The first matches the Compare button above.

The useful part.

Key strengths

The official LG UK page identifies manufacturer model HM161MRS.

The checks that matter.

Before you buy

Manufacturer claims do not establish independently measured performance, current retailer stock or price. Unlisted specifications remain explicitly unknown.

Every specification. With its source.

Full specifications

Exact configuration: UK manufacturer configuration · HM161MRS

31 specifications in 5 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 7 rows repeat listed facts in the manufacturer’s own wording, kept under “Manufacturer wording”.

Heating, cooling & efficiency

14 items
Manufacturer heating capacities at separate operating points
16.00 kW (A+7/W+35); 13.80 kW (A+2/W+35); 12.00 kW (A+7/W+55)

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. NOMINAL CAPACITY AND COP (A+7/W+35) — Heating capacity (kW): 16.00; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 13.80; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 12.00. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
Manufacturer cooling capacities at separate operating points
16.00 kW (A+35/W+18); 15.00 kW (A+35/W+7)

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. NOMINAL CAPACITY AND EER (A+35/W+18) — Cooling capacity (kW): 16.00; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW): 15.00. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
Manufacturer efficiency declarations and source methods
SCOP (35℃ / 55℃) 4.53 / 3.45; Seasonal space heating eff. class (35℃ / 55℃) A+++/A++; COP 4.70 (A+7/W+35); COP 3.50 (A+2/W+35); COP 2.80 (A+7/W+55); EER 4.60 (A+35/W+18); EER 3.00 (A+35/W+7)

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. SEASONAL EFFICIENCY DATA (HEATING) — SCOP (35℃ / 55℃): 4.53 / 3.45; SEASONAL EFFICIENCY DATA (HEATING) — Seasonal space heating eff. class (35℃ / 55℃): A+++/A++; NOMINAL CAPACITY AND COP (A+7/W+35) — COP: 4.70; NOMINAL CAPACITY AND COP (A+2/W+35) — COP: 3.50; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.80; NOMINAL CAPACITY AND EER (A+35/W+18) — EER: 4.60; NOMINAL CAPACITY AND EER (A+35/W+7) — EER: 3.00. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
SEASONAL EFFICIENCY DATA (HEATING) — SCOP (35℃ / 55℃)
4.53 / 3.45Source
SEASONAL EFFICIENCY DATA (HEATING) — Seasonal space heating eff. class (35℃ / 55℃)
A+++/A++Source
NOMINAL CAPACITY AND COP (A+7/W+35) — COP
4.70Source
NOMINAL CAPACITY AND COP (A+7/W+35) — Heating capacity (kW)
16.00Source
NOMINAL CAPACITY AND COP (A+2/W+35) — COP
3.50Source
NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW)
13.80Source
NOMINAL CAPACITY AND COP (A+7/W+55) — COP
2.80Source
NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW)
12.00Source
NOMINAL CAPACITY AND EER (A+35/W+18) — EER
4.60Source
NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW)
15.00Source
NOMINAL CAPACITY AND EER (A+35/W+7) — EER
3.00Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

NOMINAL CAPACITY AND EER (A+35/W+18) — Cooling capacity (kW)
16.00Source

Refrigerant & circuit

3 items
Manufacturer refrigerant type
R32

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. REFRIGERANT — Type: R32. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
REFRIGERANT — GWP
675Source
REFRIGERANT — Precharged amount (g)
1,600Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

REFRIGERANT — Type
R32Source

Electrical supply & consumption

1 item
Manufacturer electrical supply requirements
220 ~ 240, 1, 50

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. POWER SUPPLY — Voltage, phase, frequency for outdoor unit (V, Ø, Hz): 220 ~ 240, 1, 50. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

POWER SUPPLY — Voltage, phase, frequency for outdoor unit (V, Ø, Hz)
220 ~ 240, 1, 50Source

Installation, dimensions & airflow

6 items
Exact manufacturer unit purpose
R32 Monobloc S II, 1Ø, 16kW

Exact manufacturer Product heading. Official current catalogue classes: Air to Water Heat Pump. Indoor, outdoor, hydro and whole-package purposes are not substituted for one another.

Source
PIPING CONNECTIONS (WATER/OUTDOOR UNIT) — Inlet diameter (inch)
Male PT 1"Source
DIMENSIONS — Outdoor unit (W × H × D) (mm)
1,320 x 1,019 x 520Source
WEIGHT — Outdoor unit (Empty) (kg)
117.0Source
EXTERIOR — Color of outdoor unit chassis (Color / RAL code)
Dawn gray / RAL 7037Source
EXTERIOR — Color of outdoor unit front grille (Color / RAL code)
Dark dawn gray / RAL 7012Source
Manufacturer wording (2)

The same facts in the manufacturer’s combined or original wording, each with its source.

Manufacturer dimensions and configuration basis
1,320 x 1,019 x 520 mm

Original units, axes and stand/component/handle basis retained. No packaging dimension or unstated unit is substituted. Manufacturer section: DIMENSIONS. Source field: Outdoor unit (W × H × D) (mm).

Source
PIPING CONNECTIONS (WATER/OUTDOOR UNIT) — Outlet diameter (inch)
Male PT 1"Source

Operating conditions & sound

7 items
OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Cooling (Min. ~ Max.) (℃)
5 ~ 48Source
OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Heating & DHW (Min. ~ Max.) (℃)
-25 ~ 35Source
OPERATION RANGE (LEAVING WATER TEMPERATURE) — Cooling (Min. ~ Max.) (℃)
5 ~ 27Source
OPERATION RANGE (LEAVING WATER TEMPERATURE) — DHW (Min. ~ Max.) (℃)
15 ~ 80Source
OPERATION RANGE (LEAVING WATER TEMPERATURE) — Heating (Min. ~ Max.) (℃)
15 ~ 65Source
SOUND POWER LEVEL (OUTDOOR UNIT) — Rated / low noise mode (dB(A))
61 / 57Source
SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A))
39 / 35Source
Manufacturer wording (2)

The same facts in the manufacturer’s combined or original wording, each with its source.

Manufacturer operating ranges and conditions
5 ~ 48; -25 ~ 35; 5 ~ 27; 15 ~ 80; 15 ~ 65

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Cooling (Min. ~ Max.) (℃): 5 ~ 48; OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Heating & DHW (Min. ~ Max.) (℃): -25 ~ 35; OPERATION RANGE (LEAVING WATER TEMPERATURE) — Cooling (Min. ~ Max.) (℃): 5 ~ 27; OPERATION RANGE (LEAVING WATER TEMPERATURE) — DHW (Min. ~ Max.) (℃): 15 ~ 80; OPERATION RANGE (LEAVING WATER TEMPERATURE) — Heating (Min. ~ Max.) (℃): 15 ~ 65. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
Manufacturer sound declarations and measurement methods
61 / 57; 39 / 35

Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. SOUND POWER LEVEL (OUTDOOR UNIT) — Rated / low noise mode (dB(A)): 61 / 57; SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A)): 39 / 35. Heating/cooling output is separate from electrical consumption and supply. Sound power and sound pressure remain separately labelled in the original rows. No COP/SCOP/EER/SEER conversion, seasonal average or ranking is calculated.

Source
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