SpecDirectory

KUMXB541A

LG · HP - Mini or Multi Split

ENERGY STAR CertifiedAir-Source Heat Pumps →
SEER2

18.5–20.6BTU/Wh

HSPF2

9.3–9.5BTU/Wh

Cooling Capacity

50500BTU/hr

Refrigerant

R-32

GWP 675 · Lower
ENERGY STAR Most Efficient

LG KUMXB541A: SEER2 20.6 BTU/Wh, around the middle of the range for air-source heat pumps (category median 20 BTU/Wh).

SEER2: better than 78% of the 1840 comparable models within 10% of this capacity. Their median is 18 BTU/Wh.

Where this model sits

Cooling50500BTU/hr
6000median 2400060000
SEER220.6BTU/Wh
15.2median 2035.1

The LG KUMXB541A is a 50500 BTU/hr hp - mini or multi split using R-32, a refrigerant with moderate global warming potential (GWP 675). At 20.6 BTU/Wh it ranks around the middle of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is more efficient than the peer median of 18 BTU/Wh. In this size range, comparable Midea models average 18.7 BTU/Wh and BLUERIDGE models average 18.5 BTU/Wh.

Specifications

Efficiency
SEER2 (best combination)20.6BTU/Wh
SEER2 (worst combination)18.5BTU/Wh
HSPF2 (best combination)9.5BTU/Wh
HSPF2 (worst combination)9.3BTU/Wh
EER2 (best combination)12.6BTU/Wh
COP at 5 °F2.19
Capacity
Cooling Capacity (max)50500BTU/hr
Cooling Capacity (min)50500BTU/hr
Heating at 47 °F58000BTU/hr
Heating at 17 °F37200BTU/hr
Heating at 5 °F41000BTU/hr
All 25 specifications
Configuration
Product TypeHP - Mini or Multi Split
Compressor StagingContinuously variable
Cold Climate CertifiedNo
Connected CapabilityNo
SeriesKUMXB541A
Indoor-Unit Combinations Rated3
Refrigerant
TypeR-32
GWP RatingR-32 (GWP:675 | Lower GWP)
Identifiers
Model NumberKUMXB541A
ENERGY STAR IDES_1118034_KUMXB541A_08162024005502_2313611
PartnerLG Electronics, Inc.
Date Certified2025-11-07
Available From2024-12-23
MarketsUnited States, Canada

Documentation

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