Fujitsu Orion XLTH+ 12,000 BTU
#2 in 12,000 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+ 12,000 BTU and the LG Art Cool Deluxe 12,000 BTU are evenly matched, rated 4.9 and 4.8. The LG Art Cool Deluxe 12,000 BTU wins on noise.
LG Art Cool Deluxe 12,000 BTU
#3 in 12,000 BTUFull review
Heats down to −31 °F, the lowest limit here, and makes more than its rated heat at 5 °F. A strong pick for a very cold climate.
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 LG Art Cool Deluxe 12,000 BTU for noise (indoor unit from 21 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 12,000 BTU mini-split; a clear win is highlighted. How we rank explains each one.
| Factor weight | Fujitsu Orion XLTH+ 12,000 BTU | LG Art Cool Deluxe 12,000 BTU |
|---|---|---|
| Overall rating | 4.9/5 | 4.8/5 |
| Cold weather 40% | 100 keeps 134% of its heat at 5 °F, heats down to -22 °F | 100 keeps 113% of its heat at 5 °F, heats down to -31 °F |
| Efficiency 30% | 92 13.7 HSPF2, 31.5 SEER2, COP 2.18 at 5 °F | 88 11.2 HSPF2, 25.5 SEER2, COP 2.05 at 5 °F |
| Warranty 20% | 100 10-year compressor, 10-year parts | 100 10-year compressor, 10-year parts |
| Noise 10% | 81 indoor unit from 23 dB(A) | 90 indoor unit from 21 dB(A) |
Specifications
| Fujitsu Orion XLTH+ 12,000 BTU | LG Art Cool Deluxe 12,000 BTU | |
|---|---|---|
| Capacity (certified) | ||
| Size (nominal) | 12,000 BTU | 12,000 BTU |
| Cooling at 95 °F | 12,000 Btu/h | 12,000 Btu/h |
| Heating at 47 °F | 15,300 Btu/h | 13,000 Btu/h |
| Heating at 17 °F (max) | 22,800 Btu/h | 16,820 Btu/h |
| Heating at 5 °F (max) | 20,500 Btu/h | 14,700 Btu/h |
| Heat kept at 5 °F | 134% | 113% |
| Efficiency (certified) | ||
| HSPF2 (Region IV) | 13.7 | 11.2 |
| SEER2 | 31.5 | 25.5 |
| EER2 | 16.7 | 13.8 |
| COP at 5 °F | 2.18 | 2.05 |
| ENERGY STAR | ENERGY STAR Cold Climate | ENERGY STAR Cold Climate |
| AHRI certificate | 216018256 | 216368960 |
| Operating range | ||
| Heats down to | -22 °F | -31 °F |
| Cooling range | 14 to 122 °F | 14 to 118 °F |
| Installation | ||
| Installed by | Professional (sold through installers) | Professional (sold through installers) |
| Line set connection | Flare fittings (vacuum pump needed) | Flare fittings (vacuum pump needed) |
| Line set | up to 66 ft | up to 65.6 ft |
| Voltage | 230 V | 230 V |
| Refrigerant | R-32 | R-32 |
| Indoor unit | ASUH12KTAS | KNSAL121A |
| Outdoor unit | AOUH12KTAP1 | KUSAL121A |
| Build | ||
| Indoor noise | 23–45 dB(A) | 21–42 dB(A) |
| Outdoor noise | 48 dB(A) | 48 dB(A) |
| Wi-Fi | Built in | Built in |
| Weight | indoor 31 lb / outdoor 93 lb | indoor 24.3 lb / outdoor 99.2 lb |
| Warranty | 10 yr compressor, 10 yr parts | 10 yr compressor, 10 yr parts |
| Warranty with DIY install | No, a licensed installer is required | No, a licensed installer is required |