Fujitsu’s mainstream line for cooling and mild-winter heating, with a 10-year registered warranty. It stops heating below 5 °F.
No store we check sells it online; the maker lists where to buy or who installs it.
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Capacity (certified) | |
|---|---|
| Size (nominal) | 12,000 BTU |
| Cooling at 95 °F | 12,000 Btu/h |
| Heating at 47 °F | 14,000 Btu/h |
| Heating at 17 °F (max) | 11,000 Btu/h |
| Heating at 5 °F (max) | 8,500 Btu/h |
| Heat kept at 5 °F | 61% |
| Efficiency (certified) | |
| HSPF2 (Region IV) | 10.5 |
| SEER2 | 24 |
| EER2 | 11.7 |
| COP at 5 °F | 2.29 |
| ENERGY STAR | ENERGY STAR |
| AHRI certificate | 215212610 |
| Operating range | |
| Heats down to | 5 °F |
| Cooling range | 14 to 122 °F |
| Installation | |
| Installed by | Professional (sold through installers) |
| Line set connection | Flare fittings (vacuum pump needed) |
| Line set | up to 66 ft |
| Voltage | 230 V |
| Refrigerant | R-32 |
| Indoor unit | ASUH12KPAS |
| Outdoor unit | AOUH12KPAS1 |
| Build | |
| Indoor noise | 19–42 dB(A) |
| Outdoor noise | 48 dB(A) |
| Wi-Fi | Optional module |
| Weight | indoor 21 lb / outdoor 57 lb |
| Warranty | 10 yr compressor, 10 yr parts |
| Warranty with DIY install | No, a licensed installer is required |
For someone who wants a true plug-together install with no tools beyond a drill, and a warranty that survives it. Expect to pay well over the price of a flare unit with the same cold-weather output.
Amazon $1,759 MRCOOL DIY Direct $2,370The cheapest way into a certified, cold-capable heat pump, for a self-installer with a vacuum pump. Pioneer’s Quantum Ultra and the quick-connect Klimaire DIY have near-identical certified ratings.
Amazon $949.96 Della $949.96The cheapest way into a certified, cold-capable heat pump, for a self-installer with a vacuum pump. Pioneer’s Quantum Ultra and the quick-connect Klimaire DIY have near-identical certified ratings.
Amazon $969.96 Della $969.96Compare the Fujitsu Altair 500 12,000 BTU with any other mini-split →
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