Fujitsu Orion XLTH+ 9,000 BTU
#1 in 9,000 BTUFull review
Fujitsu’s top cold-climate unit and among the most efficient here: it makes far more than its rated heat at 5 °F and heats to −22 °F. Sold only at 9,000 and 12,000 BTU.
The Fujitsu Orion XLTH+ 9,000 BTU is the better mini-split overall, rated 4.9 to 4.0. The Fujitsu Orion XLTH+ 9,000 BTU leads on cold weather, warranty and efficiency. The MrCool DIY 5th Gen 9,000 BTU 115V wins on noise.
MrCool DIY 5th Gen 9,000 BTU 115V
#14 in 9,000 BTUFull review
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 MRCOOL DIY Direct $2,330$2,330
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Fujitsu Orion XLTH+ 9,000 BTU for cold weather (keeps 142% of its heat at 5 °F, heats down to -22 °F vs keeps 73% of its heat at 5 °F, heats down to -13 °F), warranty (10-year compressor, 10-year parts vs 7-year compressor, 5-year parts) and efficiency (14 HSPF2, 33.5 SEER2, COP 2.48 at 5 °F vs 11.5 HSPF2, 23.6 SEER2, COP 2.16 at 5 °F).
- Choose the MrCool DIY 5th Gen 9,000 BTU 115V for noise (indoor unit from 18 dB(A) vs indoor unit from 23 dB(A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 9,000 BTU mini-split; a clear win is highlighted. How we rank explains each one.
| Factor weight | Fujitsu Orion XLTH+ 9,000 BTU | MrCool DIY 5th Gen 9,000 BTU 115V |
|---|---|---|
| Overall rating | 4.9/5 | 4.0/5 |
| Cold weather 40% | 100 keeps 142% of its heat at 5 °F, heats down to -22 °F | 54 keeps 73% of its heat at 5 °F, heats down to -13 °F |
| Efficiency 30% | 100 14 HSPF2, 33.5 SEER2, COP 2.48 at 5 °F | 87 11.5 HSPF2, 23.6 SEER2, COP 2.16 at 5 °F |
| Warranty 20% | 100 10-year compressor, 10-year parts | 64 7-year compressor, 5-year parts |
| Noise 10% | 81 indoor unit from 23 dB(A) | 100 indoor unit from 18 dB(A) |
Specifications
| Fujitsu Orion XLTH+ 9,000 BTU | MrCool DIY 5th Gen 9,000 BTU 115V | |
|---|---|---|
| Capacity (certified) | ||
| Size (nominal) | 9,000 BTU | 9,000 BTU |
| Cooling at 95 °F | 9,000 Btu/h | 9,000 Btu/h |
| Heating at 47 °F | 12,000 Btu/h | 10,000 Btu/h |
| Heating at 17 °F (max) | 19,500 Btu/h | 7,800 Btu/h |
| Heating at 5 °F (max) | 17,000 Btu/h | 7,300 Btu/h |
| Heat kept at 5 °F | 142% | 73% |
| Price per 1,000 Btu/h at 5 °F | - | $319 |
| Efficiency (certified) | ||
| HSPF2 (Region IV) | 14 | 11.5 |
| SEER2 | 33.5 | 23.6 |
| EER2 | 19.1 | 14 |
| COP at 5 °F | 2.48 | 2.16 |
| ENERGY STAR | ENERGY STAR Cold Climate | ENERGY STAR Cold Climate |
| AHRI certificate | 216018255 | 216032543 |
| Operating range | ||
| Heats down to | -22 °F | -13 °F |
| Cooling range | 14 to 122 °F | -13 to 122 °F |
| Installation | ||
| Installed by | Professional (sold through installers) | Sold for self-install (DIY) |
| Line set connection | Flare fittings (vacuum pump needed) | Quick-connect (no vacuum pump) |
| Line set | up to 66 ft | 25 ft included, up to 75 ft |
| Voltage | 230 V | 115 V |
| Refrigerant | R-32 | R-454B |
| Indoor unit | ASUH09KTAS | DIY-09-HP-WMAH-115D25-O |
| Outdoor unit | AOUH09KTAP1 | DIY-09-HP-C-115D25-O |
| Build | ||
| Indoor noise | 23–45 dB(A) | 18–43 dB(A) |
| Outdoor noise | 44 dB(A) | 54 dB(A) |
| Wi-Fi | Built in | Built in |
| Room size (maker) | - | up to 400 sq ft |
| Weight | indoor 31 lb / outdoor 86 lb | indoor 24.9 lb / outdoor 65.5 lb |
| Warranty | 10 yr compressor, 10 yr parts | 7 yr compressor, 5 yr parts |
| Warranty with DIY install | No, a licensed installer is required | Yes |