UK manufacturer configuration · HM051MRS
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 specificationsUK manufacturer configuration · HM121MR U34
LG HM121MR U34 in the exact manufacturer-listed UK configuration.
Specifications checked 19 Oct 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
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Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
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.
Manufacturer specification · Exact manufacturer Product heading. Official current catalogue classes: Heating Solution(AWHP). Indoor, outdoor, hydro and whole-package purposes are not substituted for one another.
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.
15 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
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 specificationsManufacturer specification · Exact manufacturer Product heading. Official current catalogue classes: Heating Solution(AWHP). Indoor, outdoor, hydro and whole-package purposes are not substituted for one another.
LG UK — HM121MR U34 manufacturer specificationsCheck the exact configuration and source conditions for your use.
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 specificationsManufacturer 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): 12.00; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 11.00; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 11.00. 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 — HM121MR U34 manufacturer specificationsCheck the exact configuration and source conditions for your use.
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 specificationsManufacturer 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): 12.00; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling 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.
LG UK — HM121MR U34 manufacturer specificationsCheck the exact configuration and source conditions for your use.
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 specificationsManufacturer 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) — EER: 4.75; NOMINAL CAPACITY AND EER (A+35/W+7) — EER: 3.30; NOMINAL CAPACITY AND COP (A+7/W+35) — COP: 4.90; NOMINAL CAPACITY AND COP (A+2/W+35) — COP: 3.65; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.90; SEASONAL EFFICIENCY DATA — SCOP (35℃ / 55℃): 4.67 / 3.47; SEASONAL EFFICIENCY DATA — Seasonal space heating eff. class (35℃ / 55℃): A+++/A++; SEASONAL EFFICIENCY DATA — Seasonal space heating efficiency (ηS) (35℃ / 55℃): 184 / 136. 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 — HM121MR U34 manufacturer specificationsCheck the exact configuration and source conditions for your use.
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 specificationsManufacturer specification · Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. SOUND POWER LEVEL — Rated / low noise mode (dB(A)): 60 / 56; SOUND PRESSURE LEVEL AT 1M (CONVERT USING SWL) — Rated / low noise mode (dB(A)): 52 / 48; SOUND PRESSURE LEVEL AT 5M (CONVERT USING SWL) — Rated / low noise mode (dB(A)): 38 / 34. 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 — HM121MR U34 manufacturer specificationsCheck the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
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 specificationsThe manufacturer does not supply complete, unambiguous unit-labelled dimensions for the relevant product/components. Original declarations: none. Missing units or malformed component values are not guessed. · Manufacturer specification · The manufacturer does not supply complete, unambiguous unit-labelled dimensions for the relevant product/components. Original declarations: none. Missing units or malformed component values are not guessed.
LG UK — HM121MR U34 manufacturer specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
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11 shared fields have the same recorded value.
| Specification | LG HM051MRS | LG HM121MR U34 |
|---|---|---|
Manufacturer heating capacities at separate operating pointsDifferent SourcesLG 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 specificationsLG HM121MR U34 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): 12.00; NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW): 11.00; NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW): 11.00. 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 — HM121MR U34 manufacturer specifications | 5.50 kW (A+7/W+35); 5.00 kW (A+2/W+35); 5.50 kW (A+7/W+55) | 12.00 kW (A+7/W+35); 11.00 kW (A+2/W+35); 11.00 kW (A+7/W+55) |
Manufacturer cooling capacities at separate operating pointsDifferent SourcesLG 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 specificationsLG HM121MR U34 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): 12.00; NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling 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. LG UK — HM121MR U34 manufacturer specifications | 5.50 kW (A+35/W+18); 5.50 kW (A+35/W+7) | 12.00 kW (A+35/W+18); 12.00 kW (A+35/W+7) |
Manufacturer efficiency declarations and source methodsDifferent SourcesLG 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 specificationsLG HM121MR U34 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) — EER: 4.75; NOMINAL CAPACITY AND EER (A+35/W+7) — EER: 3.30; NOMINAL CAPACITY AND COP (A+7/W+35) — COP: 4.90; NOMINAL CAPACITY AND COP (A+2/W+35) — COP: 3.65; NOMINAL CAPACITY AND COP (A+7/W+55) — COP: 2.90; SEASONAL EFFICIENCY DATA — SCOP (35℃ / 55℃): 4.67 / 3.47; SEASONAL EFFICIENCY DATA — Seasonal space heating eff. class (35℃ / 55℃): A+++/A++; SEASONAL EFFICIENCY DATA — Seasonal space heating efficiency (ηS) (35℃ / 55℃): 184 / 136. 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 — HM121MR U34 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) | EER 4.75 (A+35/W+18); EER 3.30 (A+35/W+7); COP 4.90 (A+7/W+35); COP 3.65 (A+2/W+35); COP 2.90 (A+7/W+55); SCOP (35℃ / 55℃) 4.67 / 3.47; Seasonal space heating eff. class (35℃ / 55℃) A+++/A++; Seasonal space heating efficiency (ηS) (35℃ / 55℃) 184 / 136 |
SEASONAL EFFICIENCY DATA (HEATING) — SCOP (35℃ / 55℃) SourcesLG HM121MR U34 No source recorded. | 4.46 / 3.20 | Not provided |
SEASONAL EFFICIENCY DATA (HEATING) — Seasonal space heating eff. class (35℃ / 55℃) SourcesLG HM121MR U34 No source recorded. | A+++/A++ | Not provided |
NOMINAL CAPACITY AND COP (A+7/W+35) — COPDifferent Sources | 4.70 | 4.90 |
NOMINAL CAPACITY AND COP (A+7/W+35) — Heating capacity (kW)Different Sources | 5.50 | 12.00 |
NOMINAL CAPACITY AND COP (A+2/W+35) — COPDifferent Sources | 3.60 | 3.65 |
NOMINAL CAPACITY AND COP (A+2/W+35) — Heating capacity (kW)Different Sources | 5.00 | 11.00 |
NOMINAL CAPACITY AND COP (A+7/W+55) — COPDifferent Sources | 2.70 | 2.90 |
NOMINAL CAPACITY AND COP (A+7/W+55) — Heating capacity (kW)Different Sources | 5.50 | 11.00 |
NOMINAL CAPACITY AND EER (A+35/W+18) — Cooling capacity (kW)Different Sources | 5.50 | 12.00 |
NOMINAL CAPACITY AND EER (A+35/W+18) — EERDifferent Sources | 4.70 | 4.75 |
NOMINAL CAPACITY AND EER (A+35/W+7) — Cooling capacity (kW)Different Sources | 5.50 | 12.00 |
NOMINAL CAPACITY AND EER (A+35/W+7) — EER Sources | 3.30 | 3.30 |
SEASONAL EFFICIENCY DATA — SCOP (35℃ / 55℃) SourcesLG HM051MRS No source recorded. | Not provided | 4.67 / 3.47 |
SEASONAL EFFICIENCY DATA — Seasonal space heating eff. class (35℃ / 55℃) SourcesLG HM051MRS No source recorded. | Not provided | A+++/A++ |
SEASONAL EFFICIENCY DATA — Seasonal space heating efficiency (ηS) (35℃ / 55℃) SourcesLG HM051MRS No source recorded. | Not provided | 184 / 136 |
Manufacturer refrigerant type SourcesLG 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 specificationsLG HM121MR U34 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 — HM121MR U34 manufacturer specifications | R32 | R32 |
REFRIGERANT — Type Sources | R32 | R32 |
REFRIGERANT — GWP Sources | 675 | 675 |
REFRIGERANT — Precharged amount (g)Different Sources | 1,400 | 2,000 |
Manufacturer electrical supply requirements SourcesLG 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 specificationsLG HM121MR U34 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 (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 — HM121MR U34 manufacturer specifications | 220 ~ 240, 1, 50 | 220-240, 1, 50 |
POWER SUPPLY — Voltage, phase, frequency for outdoor unit (V, Ø, Hz) SourcesLG HM121MR U34 No source recorded. | 220 ~ 240, 1, 50 | Not provided |
POWER SUPPLY — Voltage, phase, frequency (V, Ø, Hz) SourcesLG HM051MRS No source recorded. | Not provided | 220-240, 1, 50 |
Exact manufacturer unit purposeDifferent SourcesLG 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 specificationsLG HM121MR U34 Manufacturer specification · Exact manufacturer Product heading. Official current catalogue classes: Heating Solution(AWHP). Indoor, outdoor, hydro and whole-package purposes are not substituted for one another. LG UK — HM121MR U34 manufacturer specifications | R32 Monobloc S II, 1Ø, 5kW | R32 Monobloc S, 1Ø, 12kW HM121MR U34 |
Manufacturer dimensions and configuration basis SourcesLG 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 specificationsLG HM121MR U34 The manufacturer does not supply complete, unambiguous unit-labelled dimensions for the relevant product/components. Original declarations: none. Missing units or malformed component values are not guessed. · Manufacturer specification · The manufacturer does not supply complete, unambiguous unit-labelled dimensions for the relevant product/components. Original declarations: none. Missing units or malformed component values are not guessed. LG UK — HM121MR U34 manufacturer specifications | 1,242 x 853 x 391 mm | Not listed by the manufacturer |
PIPING CONNECTIONS (WATER/OUTDOOR UNIT) — Inlet diameter (inch) SourcesLG HM121MR U34 No source recorded. | Male PT 1" | Not provided |
PIPING CONNECTIONS (WATER/OUTDOOR UNIT) — Outlet diameter (inch) SourcesLG HM121MR U34 No source recorded. | Male PT 1" | Not provided |
DIMENSIONS — Outdoor unit (W × H × D) (mm) SourcesLG HM121MR U34 No source recorded. | 1,242 x 853 x 391 | Not provided |
WEIGHT — Outdoor unit (Empty) (kg) SourcesLG HM121MR U34 No source recorded. | 94.0 | Not provided |
EXTERIOR — Color of outdoor unit chassis (Color / RAL code) SourcesLG HM121MR U34 No source recorded. | Dawn gray / RAL 7037 | Not provided |
EXTERIOR — Color of outdoor unit front grille (Color / RAL code) SourcesLG HM121MR U34 No source recorded. | Dark dawn gray / RAL 7012 | Not provided |
PIPING CONNECTIONS (WATER) — Inlet diameter (inch) SourcesLG HM051MRS No source recorded. | Not provided | Male PT 1" |
PIPING CONNECTIONS (WATER) — Outlet diameter (inch) SourcesLG HM051MRS No source recorded. | Not provided | Male PT 1" |
EXTERIOR — Color SourcesLG HM051MRS No source recorded. | Not provided | Warm gray |
EXTERIOR — RAL code SourcesLG HM051MRS No source recorded. | Not provided | RAL 7044 |
Manufacturer operating ranges and conditions SourcesLG 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 specificationsLG HM121MR U34 Manufacturer specification · Each declaration has its own manufacturer operating point, component, measurement method or electrical basis. They are not equivalent unqualified figures. OPERATION RANGE (LEAVING WATER TEMPERATURE) — Cooling (Min. ~ Max.) (℃): 5 ~ 27; OPERATION RANGE (LEAVING WATER TEMPERATURE) — Heating (Min. ~ Max.) (℃): 15 ~ 65; OPERATION RANGE (LEAVING WATER TEMPERATURE) — DHW (Min. ~ Max.) (℃): 15 ~ 80; OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Cooling (Min. ~ Max.) (℃): 5 ~ 48; OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Heating & DHW (Min. ~ Max.) (℃): -25 ~ 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. LG UK — HM121MR U34 manufacturer specifications | 5 ~ 48; -25 ~ 35; 5 ~ 27; 15 ~ 80; 15 ~ 65 | 5 ~ 27; 15 ~ 65; 15 ~ 80; 5 ~ 48; -25 ~ 35 |
Manufacturer sound declarations and measurement methodsDifferent SourcesLG 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 specificationsLG HM121MR U34 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 — Rated / low noise mode (dB(A)): 60 / 56; SOUND PRESSURE LEVEL AT 1M (CONVERT USING SWL) — Rated / low noise mode (dB(A)): 52 / 48; SOUND PRESSURE LEVEL AT 5M (CONVERT USING SWL) — Rated / low noise mode (dB(A)): 38 / 34. 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 — HM121MR U34 manufacturer specifications | 57 / 54; 35 / 32 | 60 / 56; 52 / 48; 38 / 34 |
OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Cooling (Min. ~ Max.) (℃) Sources | 5 ~ 48 | 5 ~ 48 |
OPERATION RANGE (OUTDOOR AIR TEMPERATURE) — Heating & DHW (Min. ~ Max.) (℃) Sources | -25 ~ 35 | -25 ~ 35 |
OPERATION RANGE (LEAVING WATER TEMPERATURE) — Cooling (Min. ~ Max.) (℃) Sources | 5 ~ 27 | 5 ~ 27 |
OPERATION RANGE (LEAVING WATER TEMPERATURE) — DHW (Min. ~ Max.) (℃) Sources | 15 ~ 80 | 15 ~ 80 |
OPERATION RANGE (LEAVING WATER TEMPERATURE) — Heating (Min. ~ Max.) (℃) Sources | 15 ~ 65 | 15 ~ 65 |
SOUND POWER LEVEL (OUTDOOR UNIT) — Rated / low noise mode (dB(A)) SourcesLG HM121MR U34 No source recorded. | 57 / 54 | Not provided |
SOUND PRESSURE LEVEL AT 5M (OUTDOOR UNIT, CONVERT USING SWL) — Rated / low noise mode (dB(A)) SourcesLG HM121MR U34 No source recorded. | 35 / 32 | Not provided |
SOUND POWER LEVEL — Rated / low noise mode (dB(A)) SourcesLG HM051MRS No source recorded. | Not provided | 60 / 56 |
SOUND PRESSURE LEVEL AT 1M (CONVERT USING SWL) — Rated / low noise mode (dB(A)) SourcesLG HM051MRS No source recorded. | Not provided | 52 / 48 |
SOUND PRESSURE LEVEL AT 5M (CONVERT USING SWL) — Rated / low noise mode (dB(A)) SourcesLG HM051MRS No source recorded. | Not provided | 38 / 34 |
Closest heat pumps to this pair by shared key specifications. Not a popularity ranking.
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.
