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HEAT PUMPS · YOUR NEXT FACE-OFF

LG HM051MRS vs LG HM091MRS

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

LG HM051MRS

UK manufacturer configuration · HM051MRS

LG Air to Water Heat Pumps  HM051MRS UA40, front view of a black outdoor unit featuring a grey wavy grille.
Exact model & source notes

LG HM051MRS in the exact manufacturer-listed UK configuration.

Specifications checked 20 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications
WHAT DIFFERS
Exact manufacturer unit purposeR32 Monobloc S II, 1Ø, 5kWR32 Monobloc S II, 1Ø, 9kW
Manufacturer sound declarations and measurement methods57 / 54; 35 / 3257 / 55; 35 / 33
NOMINAL CAPACITY AND COP (A+2/W+35) — COP3.603.50
3 of 17 verified differences, in the order listed below. Not a rating.
See the 17 verified differences
THE CONTENDER

LG HM091MRS

UK manufacturer configuration · HM091MRS

LG Air to Water Heat Pumps  HM091MRS UA40, front view of a black outdoor unit featuring a grey wavy grille.
Exact model & source notes

LG HM091MRS in the exact manufacturer-listed UK configuration.

Specifications checked 20 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

HM051MRS UK & US retailers

UK & US price history: no verified listing yet

HM091MRS UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison
  • Manufacturer facts for the exact models shown. Not a quality rating or a test result.
  • “Different” means the known values differ, not that one is better.
  • Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.
SPECIFICATIONS SIDE BY SIDE7 topics
SELECTED TOPIC
01 / 07

Exact manufacturer unit purpose

Check the exact configuration and source conditions for your use.

LG HM051MRSR32 Monobloc S II, 1Ø, 5kW

Manufacturer specification · 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.

LG HM091MRSR32 Monobloc S II, 1Ø, 9kW

Manufacturer specification · 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.

Explore the full specifications

Check the exact configuration. Manufacturer specifications describe the listed variant. Confirm compatibility and the seller’s exact model before buying; no overall winner is inferred from incomplete evidence.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

17 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.

Exact manufacturer unit purpose

In Visual facts
LG HM051MRSR32 Monobloc S II, 1Ø, 5kW
LG HM091MRSR32 Monobloc S II, 1Ø, 9kW
Sources
LG HM051MRS

Manufacturer specification · 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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.

LG UK — HM091MRS manufacturer specifications

Check the exact configuration and source conditions for your use.

Manufacturer heating capacities at separate operating points

In Visual facts
LG HM051MRS5.50 kW (A+7/W+35); 5.00 kW (A+2/W+35); 5.50 kW (A+7/W+55)
LG HM091MRS9.00 kW (A+7/W+35); 7.00 kW (A+2/W+35); 6.00 kW (A+7/W+55)
Sources
LG HM051MRS

Manufacturer specification · 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): 5.50; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 5.00; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 5.50. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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): 9.00; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 7.00; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 6.00. 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.

LG UK — HM091MRS manufacturer specifications

Check the exact configuration and source conditions for your use.

Manufacturer cooling capacities at separate operating points

In Visual facts
LG HM051MRS5.50 kW (A+35/W+18); 5.50 kW (A+35/W+7)
LG HM091MRS9.00 kW (A+35/W+18); 9.00 kW (A+35/W+7)
Sources
LG HM051MRS

Manufacturer specification · 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): 5.50; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW): 5.50. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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): 9.00; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW): 9.00. 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.

LG UK — HM091MRS manufacturer specifications

Check the exact configuration and source conditions for your use.

Manufacturer efficiency declarations and source methods

In Visual facts
LG HM051MRSSCOP (35℃ / 55℃) 4.46 / 3.20; Seasonal space heating eff. class (35℃ / 55℃) A+++/A++; COP 4.70 (A+7/W+35); COP 3.60 (A+2/W+35); COP 2.70 (A+7/W+55); EER 4.70 (A+35/W+18); EER 3.30 (A+35/W+7)
LG HM091MRSSCOP (35℃ / 55℃) 4.55 / 3.20; Seasonal space heating eff. class (35℃ / 55℃) A+++/A++; COP 4.60 (A+7/W+35); COP 3.50 (A+2/W+35); COP 2.70 (A+7/W+55); EER 4.60 (A+35/W+18); EER 3.00 (A+35/W+7)
Sources
LG HM051MRS

Manufacturer specification · 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℃): 4.46 / 3.20; 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: 3.60; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.70; NOMINAL CAPACITY AND EER (A+35/W+18) — EER: 4.70; NOMINAL CAPACITY AND EER (A+35/W+7) — EER: 3.30. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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℃): 4.55 / 3.20; SEASONAL EFFICIENCY DATA (HEATING) — Seasonal space heating eff. class (35℃ / 55℃): A+++/A++; NOMINAL CAPACITY AND COP (A+7/W+35) — COP: 4.60; NOMINAL CAPACITY AND COP (A+2/W+35) — COP: 3.50; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.70; 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.

LG UK — HM091MRS manufacturer specifications

Check the exact configuration and source conditions for your use.

Manufacturer sound declarations and measurement methods

In Visual facts
LG HM051MRS57 / 54; 35 / 32
LG HM091MRS57 / 55; 35 / 33
Sources
LG HM051MRS

Manufacturer specification · 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)): 57 / 54; SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A)): 35 / 32. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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)): 57 / 55; SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A)): 35 / 33. 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.

LG UK — HM091MRS manufacturer specifications

Check the exact configuration and source conditions for your use.

Show 11 more verified differences

21 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

LG HM051MRS

What it brings

What to check

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

LG HM091MRS

What it brings

What to check

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

Full specifications

How we verify
38 of 38 specifications Sources in each row
Source-backed specifications for LG HM051MRS and LG HM091MRS
SpecificationLG HM051MRSLG HM091MRS
Manufacturer heating capacities at separate operating pointsDifferent
Sources
LG HM051MRS

Manufacturer specification · 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): 5.50; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 5.00; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 5.50. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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): 9.00; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 7.00; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 6.00. 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.

LG UK — HM091MRS manufacturer specifications
5.50 kW (A+7/W+35); 5.00 kW (A+2/W+35); 5.50 kW (A+7/W+55)9.00 kW (A+7/W+35); 7.00 kW (A+2/W+35); 6.00 kW (A+7/W+55)
Manufacturer cooling capacities at separate operating pointsDifferent
Sources
LG HM051MRS

Manufacturer specification · 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): 5.50; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW): 5.50. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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): 9.00; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW): 9.00. 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.

LG UK — HM091MRS manufacturer specifications
5.50 kW (A+35/W+18); 5.50 kW (A+35/W+7)9.00 kW (A+35/W+18); 9.00 kW (A+35/W+7)
Manufacturer efficiency declarations and source methodsDifferent
Sources
LG HM051MRS

Manufacturer specification · 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℃): 4.46 / 3.20; 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: 3.60; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.70; NOMINAL CAPACITY AND EER (A+35/W+18) — EER: 4.70; NOMINAL CAPACITY AND EER (A+35/W+7) — EER: 3.30. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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℃): 4.55 / 3.20; SEASONAL EFFICIENCY DATA (HEATING) — Seasonal space heating eff. class (35℃ / 55℃): A+++/A++; NOMINAL CAPACITY AND COP (A+7/W+35) — COP: 4.60; NOMINAL CAPACITY AND COP (A+2/W+35) — COP: 3.50; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.70; 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.

LG UK — HM091MRS manufacturer specifications
SCOP (35℃ / 55℃) 4.46 / 3.20; Seasonal space heating eff. class (35℃ / 55℃) A+++/A++; COP 4.70 (A+7/W+35); COP 3.60 (A+2/W+35); COP 2.70 (A+7/W+55); EER 4.70 (A+35/W+18); EER 3.30 (A+35/W+7)SCOP (35℃ / 55℃) 4.55 / 3.20; Seasonal space heating eff. class (35℃ / 55℃) A+++/A++; COP 4.60 (A+7/W+35); COP 3.50 (A+2/W+35); COP 2.70 (A+7/W+55); EER 4.60 (A+35/W+18); EER 3.00 (A+35/W+7)
SEASONAL EFFICIENCY DATA (HEATING) — SCOP (35℃ / 55℃)Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
4.46 / 3.204.55 / 3.20
SEASONAL EFFICIENCY DATA (HEATING) — Seasonal space heating eff. class (35℃ / 55℃)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
A+++/A++A+++/A++
NOMINAL CAPACITY AND COP (A+7/W+35) — COPDifferent
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
4.704.60
NOMINAL CAPACITY AND COP (A+7/W+35) — Heating capacity (kW)Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5.509.00
NOMINAL CAPACITY AND COP (A+2/W+35) — COPDifferent
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
3.603.50
NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW)Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5.007.00
NOMINAL CAPACITY AND COP (A+7/W+55) — COP
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
2.702.70
NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW)Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5.506.00
NOMINAL CAPACITY AND EER (A+35/W+18) — Cooling capacity (kW)Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5.509.00
NOMINAL CAPACITY AND EER (A+35/W+18) — EERDifferent
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
4.704.60
NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW)Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5.509.00
NOMINAL CAPACITY AND EER (A+35/W+7) — EERDifferent
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
3.303.00
Manufacturer refrigerant type
Sources
LG HM051MRS

Manufacturer specification · 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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.

LG UK — HM091MRS manufacturer specifications
R32R32
REFRIGERANT — Type
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
R32R32
REFRIGERANT — GWP
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
675675
REFRIGERANT — Precharged amount (g)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
1,4001,400
Manufacturer electrical supply requirements
Sources
LG HM051MRS

Manufacturer specification · 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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.

LG UK — HM091MRS manufacturer specifications
220 ~ 240, 1, 50220 ~ 240, 1, 50
POWER SUPPLY — Voltage, phase, frequency for outdoor unit (V, Ø, Hz)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
220 ~ 240, 1, 50220 ~ 240, 1, 50
Exact manufacturer unit purposeDifferent
Sources
LG HM051MRS

Manufacturer specification · 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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.

LG UK — HM091MRS manufacturer specifications
R32 Monobloc S II, 1Ø, 5kWR32 Monobloc S II, 1Ø, 9kW
Manufacturer dimensions and configuration basis
Sources
LG HM051MRS

Manufacturer specification · 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).

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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).

LG UK — HM091MRS manufacturer specifications
1,242 x 853 x 391 mm1,242 x 853 x 391 mm
PIPING CONNECTIONS (WATER/OUTDOOR UNIT) — Inlet diameter (inch)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
Male PT 1"Male PT 1"
PIPING CONNECTIONS (WATER/OUTDOOR UNIT) — Outlet diameter (inch)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
Male PT 1"Male PT 1"
DIMENSIONS — Outdoor unit (W × H × D) (mm)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
1,242 x 853 x 3911,242 x 853 x 391
WEIGHT — Outdoor unit (Empty) (kg)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
94.094.0
EXTERIOR — Color of outdoor unit chassis (Color / RAL code)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
Dawn gray / RAL 7037Dawn gray / RAL 7037
EXTERIOR — Color of outdoor unit front grille (Color / RAL code)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
Dark dawn gray / RAL 7012Dark dawn gray / RAL 7012
Manufacturer operating ranges and conditions
Sources
LG HM051MRS

Manufacturer specification · 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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.

LG UK — HM091MRS manufacturer specifications
5 ~ 48; -25 ~ 35; 5 ~ 27; 15 ~ 80; 15 ~ 655 ~ 48; -25 ~ 35; 5 ~ 27; 15 ~ 80; 15 ~ 65
Manufacturer sound declarations and measurement methodsDifferent
Sources
LG HM051MRS

Manufacturer specification · 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)): 57 / 54; SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A)): 35 / 32. 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.

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification · 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)): 57 / 55; SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A)): 35 / 33. 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.

LG UK — HM091MRS manufacturer specifications
57 / 54; 35 / 3257 / 55; 35 / 33
OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Cooling (Min. ~ Max.) (℃)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5 ~ 485 ~ 48
OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Heating & DHW (Min. ~ Max.) (℃)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
-25 ~ 35-25 ~ 35
OPERATION RANGE (LEAVING WATER TEMPERATURE) — Cooling (Min. ~ Max.) (℃)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
5 ~ 275 ~ 27
OPERATION RANGE (LEAVING WATER TEMPERATURE) — DHW (Min. ~ Max.) (℃)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
15 ~ 8015 ~ 80
OPERATION RANGE (LEAVING WATER TEMPERATURE) — Heating (Min. ~ Max.) (℃)
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
15 ~ 6515 ~ 65
SOUND POWER LEVEL (OUTDOOR UNIT) — Rated / low noise mode (dB(A))Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
57 / 5457 / 55
SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A))Different
Sources
LG HM051MRS

Manufacturer specification

LG UK — HM051MRS manufacturer specifications
LG HM091MRS

Manufacturer specification

LG UK — HM091MRS manufacturer specifications
35 / 3235 / 33
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Manufacturer heating capacities at separate operating points
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Manufacturer cooling capacities at separate operating points
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Manufacturer cooling capacities at separate operating points
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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.