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) | 36,000 BTU |
| Cooling at 95 °F | 33,000 Btu/h |
| Heating at 47 °F | 34,000 Btu/h |
| Heating at 17 °F (max) | 30,100 Btu/h |
| Heating at 5 °F (max) | 25,800 Btu/h |
| Heat kept at 5 °F | 76% |
| Efficiency (certified) | |
| HSPF2 (Region IV) | 10 |
| SEER2 | 21 |
| EER2 | 9.8 |
| COP at 5 °F | 2.20 |
| ENERGY STAR | ENERGY STAR Cold Climate |
| AHRI certificate | 215390441 |
| 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 164 ft |
| Voltage | 230 V |
| Refrigerant | R-32 |
| Indoor unit | ASUH36KPAS |
| Outdoor unit | AOUH36KPAS1 |
| Build | |
| Indoor noise | 32–51 dB(A) |
| Outdoor noise | 54 dB(A) |
| Wi-Fi | Optional module |
| Weight | indoor 36 lb / outdoor 117 lb |
| Warranty | 10 yr compressor, 10 yr parts |
| Warranty with DIY install | No, a licensed installer is required |
The pricier of the two 36,000 BTU quick-connect units, with a better heating limit and quieter indoor unit than the Klimaire. Neither keeps much of its heat in deep cold.
Amazon $3,569.99 MRCOOL DIY Direct $3,790Mitsubishi’s standard line, quiet and efficient, for milder winters: it loses a good share of its heat in deep cold and stops heating at −5 °F.
The best-value quick-connect line: the same certified system as Pioneer’s Quantum Ultra, close to Della’s Optima, without the vacuum pump, for the same price or a few hundred dollars more.
Amazon $2,619Compare the Fujitsu Altair 500 36,000 BTU with any other mini-split →
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