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ENERGY STAR AHRI details

American Standard / Mitsubishi Electric MUZ-GS12NAHZ***

ENERGY STAR Certified HP - Mini or Multi Split
Virtual Consultation

Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandAmerican Standard / Mitsubishi Electric
Outdoor unit modelMUZ-GS12NAHZ***
Indoor unit brandAmerican Standard / Mitsubishi Electric
Indoor unit modelsNAXWST12B112**
Model nameM-Series
Model numberMUZ-GS12NAHZ***

Related product models

Indoor unit model NAXWST12B112** American Standard / Mitsubishi Electric mask match
NAXWST12B112** product image American Standard / Mitsubishi Electric NAXWST12B112** Indoor unit
Outdoor unit model MUZ-GS12NAHZ*** American Standard / Mitsubishi Electric mask match
MUZ-GS12NAHZ*** product image American Standard / Mitsubishi Electric MUZ-GS12NAHZ*** Air-source heat pump

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
12000
Heating Capacity 47F (BTUH)
12300
Heating Capacity 17F (BTUH)
7600
Heating Capacity 5F (BTUH)
12300
Seer2
21.70
HSPF2 Region IV
9.60
EER2 AFull 95F
13.05
COP at 5F
1.84
Refrigerant Type
R-410A

Eligibility

Rebates and certifications

ENERGY STAR Certified
Yes
ENERGY STAR Cold Climate Certified
Yes

Explore your options

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Higher SEER2

Carrier

Mini / multi-split heat pump

38MARBQ12AA3 — Carrier AHRI 206400643

AHRI 206400643

Indoor model / pattern
40MAQB12B--3
Cooling · BTU/h
12,000
SEER2
23.60
HSPF2
9.50

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 9.50 vs. 9.60
  • Lower heating capacity at 5°F: 10,000 BTU/h.
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Same cooling capacity

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Mini / multi-split heat pump

37MAHAQ12AA3 — Carrier AHRI 215323807

AHRI 215323807

Indoor model / pattern
45MBDAQ12XA3
Cooling · BTU/h
12,000
SEER2
20.00
HSPF2
10.20

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower SEER2: 20.00 vs. 21.70
  • Different refrigerant: R-454B (current: R-410A).
View AHRI
Higher SEER2

Bosch

Mini / multi-split heat pump

BMS500-AAS012-1CSXHC — Bosch AHRI 208157117

AHRI 208157117

Indoor model / pattern
BMS500-AAU012-1AHWXB
Cooling · BTU/h
12,000
SEER2
23.60
HSPF2
9.50

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 9.50 vs. 9.60
  • Lower heating capacity at 5°F: 10,000 BTU/h.
View AHRI
Same cooling capacity

Bosch

Mini / multi-split heat pump

BMS500-AAS012-1CSXHD — Bosch AHRI 215223285

AHRI 215223285

Indoor model / pattern
BMS500-AAU012-1AHDXD
Cooling · BTU/h
12,000
SEER2
20.00
HSPF2
10.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower SEER2: 20.00 vs. 21.70
  • Different refrigerant: R-454B (current: R-410A).
View AHRI
Higher SEER2

Fujitsu

Mini / multi-split heat pump

AOUH12LMBH1 — Fujitsu AHRI 210191037

AHRI 210191037

Indoor model / pattern
ASUH12LMAS
Cooling · BTU/h
12,000
SEER2
23.00
HSPF2
11.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 23.00 vs. 21.70
  • Lower heating capacity at 5°F: 10,300 BTU/h.
View AHRI
Higher SEER2

Fujitsu

Mini / multi-split heat pump

AOUH12LMBS1 — Fujitsu AHRI 210191038

AHRI 210191038

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

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 23.00 vs. 21.70
  • Lower heating capacity at 5°F: 10,300 BTU/h.
View AHRI

Side by side

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Your current system and up to two alternatives. Scroll the table to see every system.

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

Our Services

Showing services from our catalog

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.

View service details
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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