Fujitsu AIRSTAGE H-Series (AOUH09KTAP1) vs Carrier 45M Series (37MPRAQ09AA3)
Official ENERGY STAR certified mini-split heat pumps from Fujitsu and Carrier, ranked in this category.
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Best for: Official 9,000 Btu/h official cooling, 33.5 official SEER2
Check price at AmazonBest for: Official 9,000 Btu/h official cooling, 33.5 official SEER2
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Fujitsu AIRSTAGE H-Series (AOUH09KTAP1) | Carrier 45M Series (37MPRAQ09AA3) | Weight |
|---|---|---|---|
| Official SEER2The official SEER2 cooling-efficiency rating published on the ENERGY STAR certified mini-split heat pump record, in Btu/Wh. It is the certified combination rating for the outdoor and indoor units shown, not a seasonal bill we measured. Official figures above 28 are clamped at the 28 reference best. | 33.5 | 33.5 | 30% |
| Official HSPF2The official HSPF2 heating-efficiency rating published on the ENERGY STAR record, in Btu/Wh. It is the certified combination rating, not a winter heating test we ran. Official figures above 13 are clamped at the 13 reference best. | 14 | 14.6 | 25% |
| Official EER2The official EER2 cooling-efficiency rating published on the ENERGY STAR record, in Btu/Wh. EER2 is a certified steady-state figure at a stated test condition, not a seasonal measurement we made. Official figures above 16 are clamped at the 16 reference best. | 19.1 | 17 | 20% |
| Official COP at 5°FThe official coefficient of performance at 5°F published on the ENERGY STAR record. Higher official COP at 5°F means more certified heating output per unit of input at that cold-climate test point. It is a certified laboratory figure, not a test at a house we ran. If the field is blank it is shown as Not listed. Official figures above 2.6 are clamped at the 2.6 reference best. | 2.48 | 2 | 25% |
| Official ENERGY STAR unique ID | 3,723,086 | 3,624,443 | info |
| Official outdoor unit model number | AOUH09KTAP1 | 37MPRAQ09AA3 | info |
| Official indoor unit model number | ASUH09KTAS | 45MPHAQ09XA3 | info |
| Official series name | AIRSTAGE H-Series | 45M Series | info |
| Official product type | HP - Mini or Multi Split | HP - Mini or Multi Split | info |
| Official cooling capacity | 9,000 Btu/h | 9,000 Btu/h | info |
| Official heating capacity at 47°F | 12,000 Btu/h | 12,000 Btu/h | info |
| Official heating capacity at 17°F | 7,400 Btu/h | 11,000 Btu/h | info |
| Official heating capacity at 5°F | 17,000 Btu/h | 13,500 Btu/h | info |
| Official cold-climate designation | Yes | Yes | info |
| Official ENERGY STAR Most Efficient 2025 | Yes | Yes | info |
| Official refrigerant type | R-32 | R-454B | info |
| Official AHRI reference number | 216018255 | 215413142 | info |
| Other official indoor models listed with this outdoor unit | ASUH09KTAB, ASUH09KTBB, ASUH09KTBS | D5MPHAQ09XA3 | info |
| Official ENERGY STAR date certified | 04/17/2026 | 01/14/2026 | info |
| Also certified under official brand or model listings | Not listed | Bryant 37MPRAQ09AA3 / indoor 615PHAQ09XA3; Midea 37MPRAQ09AA3 / indoor D5MPHAQ09XA3; Payne 37MPRAQ09AA3 / indoor D5MPHAQ09XA3; Weathermaker 37MPRAQ09AA3 / indoor D5MPHAQ09XA3 | info |
| SplitPick score | 9.7/10 | 8.6/10 | 100% |
Where each one comes out ahead
Fujitsu AIRSTAGE H-Series (AOUH09KTAP1)
Better published figure on: Official EER2, Official COP at 5°F.
What we like
- Official ENERGY STAR record lists 33.5 SEER2.
- Official ENERGY STAR record lists 14 HSPF2.
- Official ENERGY STAR record lists a COP at 5°F of 2.48.
- Official ENERGY STAR record lists a cold-climate designation.
Watch out for
- Official ratings are for the certified outdoor and indoor combination shown; a different official indoor head can change the certified figures.
Carrier 45M Series (37MPRAQ09AA3)
Better published figure on: Official HSPF2.
What we like
- Official ENERGY STAR record lists 33.5 SEER2.
- Official ENERGY STAR record lists 14.6 HSPF2.
- Official ENERGY STAR record lists a cold-climate designation.
Watch out for
- Official ratings are for the certified outdoor and indoor combination shown; a different official indoor head can change the certified figures.
Verdict
Both official ENERGY STAR records list 33.5 SEER2; compare official HSPF2, official EER2 and official COP at 5°F.
- Fujitsu AIRSTAGE H-Series (AOUH09KTAP1): ENERGY STAR Certified Mini-Split Heat Pumps (pd_id 3,723,086)
- Fujitsu AIRSTAGE H-Series (AOUH09KTAP1): ENERGY STAR Product Finder (heat pumps)
- Carrier 45M Series (37MPRAQ09AA3): ENERGY STAR Certified Mini-Split Heat Pumps (pd_id 3,624,443)
- Carrier 45M Series (37MPRAQ09AA3): ENERGY STAR Product Finder (heat pumps)
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