Green Flow Solution logo
Schedule Service

Mass Save AHRI details

Fujitsu AOUH18KNAS1

ENERGY STAR Certified · Mass Save Eligible HP - Mini or Multi Split
Virtual Consultation

Mass Save rebate eligible

Mass Save® rebates for this qualified system

Green Flow Solution can help confirm the equipment match, project eligibility, utility requirements, and rebate paperwork before installation or replacement.

Claim your rebates today
Mass Save Heat Pump Leader logo

Brand and components

Indoor, outdoor, and system model details

Outdoor unit brandFujitsu
Outdoor unit modelAOUH18KNAS1
Indoor unit brandFUJITSU
Indoor unit modelsASUH18KNAS
Model nameAIRSTAGE H-Series
Model numberAOUH18KNAS1

Related product models

Indoor unit model ASUH18KNAS Fujitsu model match
ASUH18KNAS product image Fujitsu ASUH18KNAS Indoor unit
Outdoor unit model AOUH18KNAS1 Fujitsu model match
AOUH18KNAS1 product image Fujitsu AOUH18KNAS1 Air-source heat pump

Performance specs

Capacity and efficiency

Cooling Capacity (BTUH)
18000
Heating Capacity 47F (BTUH)
18000
Heating Capacity 17F (BTUH)
12400
Heating Capacity 5F (BTUH)
14500
Seer2
20.00
HSPF2 Region IV
9.00
EER2 AFull 95F
11.00
COP at 5F
2.02
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

Similar systems to compare

Scroll horizontally or use the arrow keys to explore.

Same cooling capacity

Carrier

Mini / multi-split heat pump

38MHRCQ18AA3 — Carrier AHRI 210605771

AHRI 210605771

Indoor model / pattern
40MHHAQ18XA3
Cooling · BTU/h
18,000
SEER2
19.50
HSPF2
8.70

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower HSPF2 (Region IV): 8.70 vs. 9.00
  • Different refrigerant: R-410A (current: R-32).
  • Lower heating capacity at 17°F: 11,400 BTU/h.
  • Lower heating capacity at 5°F: 11,700 BTU/h.
View AHRI
Higher SEER2

Carrier

Mini / multi-split heat pump

37MHRAQ18AA3 — Carrier AHRI 215413175

AHRI 215413175

Indoor model / pattern
45MHHAQ18XC3
Cooling · BTU/h
18,000
SEER2
20.30
HSPF2
9.10

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 20.30 vs. 20.00
  • Different refrigerant: R-454B (current: R-32).
  • Lower heating capacity at 5°F: 11,500 BTU/h.
View AHRI
Higher SEER2

Bosch

Mini / multi-split heat pump

BMS500-AAS018-1CSXRD — Bosch AHRI 215223303

AHRI 215223303

Indoor model / pattern
BMS500-AAU018-1AHZXD
Cooling · BTU/h
18,000
SEER2
22.20
HSPF2
12.20

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 22.20 vs. 20.00
  • Different refrigerant: R-454B (current: R-32).
  • Lower heating capacity at 5°F: 13,100 BTU/h.
View AHRI
Higher SEER2

Bosch

Mini / multi-split heat pump

BMS500-AAS018-1CSXHC — Bosch AHRI 207759996

AHRI 207759996

Indoor model / pattern
BMS500-AAU018-1AHWXC
Cooling · BTU/h
18,000
SEER2
21.50
HSPF2
11.30

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Higher SEER2: 21.50 vs. 20.00
  • Different refrigerant: R-410A (current: R-32).
View AHRI
Same brand

Fujitsu

Mini / multi-split heat pump

AOU18RGLX — Fujitsu AHRI 202534923

AHRI 202534923

Indoor model / pattern
ARU18RGLX
Cooling · BTU/h
18,000
SEER2
16.70
HSPF2
9.30

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.Lower SEER2: 16.70 vs. 20.00
  • Different refrigerant: R-410A (current: R-32).
View AHRI
Same brand

Fujitsu

Mini / multi-split heat pump

AOU18RLXFWH — Fujitsu AHRI 8779045

AHRI 8779045

Indoor model / pattern
ASU18RLF
Cooling · BTU/h
18,000
SEER2
20.00
HSPF2
10.00

Cooling capacity (listed) · HSPF2 Region IV

Same cooling capacitySimilar cooling capacity.
  • Different refrigerant: R-410A (current: R-32).
View AHRI

Side by side

See the differences

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.

View service details
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.

View service details
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.

View service details
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.

View service details
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.

View service details

Brands We Service