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Mass Save AHRI details

LG KUSXB121A

ENERGY STAR Certified · Mass Save Eligible HP - Mini or Multi Split
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Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandLG
Outdoor unit modelKUSXB121A
Indoor unit brandLG
Indoor unit modelsKNUDB121A
Model nameKUSXB121A
Model numberKUSXB121A

Related product models

Indoor unit model KNUDB121A LG model match
KNUDB121A product image LG KNUDB121A Indoor unit
Outdoor unit model KUSXB121A LG model match
KUSXB121A product image LG KUSXB121A Air-source heat pump

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
11100
Heating Capacity 47F (BTUH)
14000
Heating Capacity 17F (BTUH)
8700
Heating Capacity 5F (BTUH)
10700
Seer2
21.50
HSPF2 Region IV
10.10
EER2 AFull 95F
13.00
COP at 5F
2.16
Refrigerant Type
R-32

Eligibility

Rebates and certifications

Mass Save QPL
Yes
ENERGY STAR Certified
Yes
ENERGY STAR Cold Climate Certified
Yes

Explore your options

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Indoor model / pattern
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Cooling · BTU/h
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SEER2
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HSPF2
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Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +3.6%Similar cooling capacity.Lower SEER2: 19.00 vs. 21.50
  • Different refrigerant: R-454B (current: R-32).
  • Lower heating capacity at 47°F: 12,000 BTU/h.
  • Lower heating capacity at 5°F: 8,800 BTU/h.
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Higher SEER2

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38MARBQ12AA3 — Carrier AHRI 210857466

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Indoor model / pattern
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Cooling · BTU/h
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SEER2
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HSPF2
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Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +8.1%Similar cooling capacity.Lower HSPF2 (Region IV): 10.00 vs. 10.10
  • Different refrigerant: R-410A (current: R-32).
  • Lower heating capacity at 47°F: 12,500 BTU/h.
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Bosch

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Indoor model / pattern
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Cooling · BTU/h
11,500
SEER2
19.00
HSPF2
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Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +3.6%Similar cooling capacity.Lower SEER2: 19.00 vs. 21.50
  • Different refrigerant: R-454B (current: R-32).
  • Lower heating capacity at 47°F: 12,000 BTU/h.
  • Lower heating capacity at 5°F: 8,800 BTU/h.
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Similar cooling capacity

Bosch

Mini / multi-split heat pump

BMS500-AAS012-1CSXRC — Bosch AHRI 207760002

AHRI 207760002

Indoor model / pattern
BMS500-AAU012-1AHDXB
Cooling · BTU/h
11,500
SEER2
19.00
HSPF2
10.30

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +3.6%Similar cooling capacity.Lower SEER2: 19.00 vs. 21.50
  • Different refrigerant: R-410A (current: R-32).
  • Lower heating capacity at 47°F: 12,000 BTU/h.
  • Lower heating capacity at 5°F: 8,400 BTU/h.
View AHRI
Higher SEER2

Fujitsu

Mini / multi-split heat pump

AOUH12LMAS1 — Fujitsu AHRI 207615689

AHRI 207615689

Indoor model / pattern
ASUH12LMAS
Cooling · BTU/h
12,000
SEER2
23.00
HSPF2
11.10

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +8.1%Similar cooling capacity.Higher SEER2: 23.00 vs. 21.50
  • Different refrigerant: R-410A (current: R-32).
  • Lower heating capacity at 47°F: 12,000 BTU/h.
View AHRI
Higher SEER2

Fujitsu

Mini / multi-split heat pump

AOUH12KPAS1 — Fujitsu AHRI 215212610

AHRI 215212610

Indoor model / pattern
ASUH12KPAS
Cooling · BTU/h
12,000
SEER2
24.00
HSPF2
10.50

Cooling capacity (listed) · HSPF2 Region IV

Cooling capacity +8.1%Similar cooling capacity.Higher SEER2: 24.00 vs. 21.50
  • Lower heating capacity at 5°F: 8,500 BTU/h.
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Side by side

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Comparison does not confirm installation compatibility, availability, or current incentive eligibility. Unknown and qualified source values are not treated as zero.

Our Services

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AHRI Certificate Matching Support service
ResidentialCommercialSupport

AHRI Certificate Matching Support

Match supported indoor and outdoor equipment combinations to AHRI certification records for planning and documentation.

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Heat Pump Sizing and Selection service
ResidentialCommercialConsultation

Heat Pump Sizing and Selection

Plan supported heat-pump equipment and capacity using building conditions, climate, distribution, and backup-heat needs.

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HVAC Load Calculation and Equipment Sizing service
ResidentialCommercialConsultation

HVAC Load Calculation and Equipment Sizing

Evaluate building loads and system requirements to support correctly sized HVAC replacement or conversion planning.

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Mass Save Equipment Eligibility Verification service
ResidentialSupport

Mass Save Equipment Eligibility Verification

Review equipment, AHRI data, and current program requirements before a rebate application or proposal is finalized.

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Mass Save Rebate and AHRI Support service
ResidentialCommercialSupport

Mass Save Rebate and AHRI Support

Verify matched equipment details and prepare source information for rebate planning.

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Electrical Load Calculation for HVAC Upgrades service
ResidentialCommercialConsultation

Electrical Load Calculation for HVAC Upgrades

Review available electrical capacity and upgrade requirements for planned heat-pump, AC, or HVAC equipment.

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