Mitsubishi Electric MUZ-FX15NLHZ
EPA category: Mini or Multi Split · 15,000 Btu/h class · variable-speed · R-454B (GWP:470 | Lower GWP)
Model number as listed: MUZ-FX15NLHZ*** · Series as listed: M-Series
Among the 51 rated 15,000 Btu/h mini- and multi-split outdoor units on this site, the Mitsubishi Electric MUZ-FX15NLHZ lists the highest heating capacity at 5°F. The MUZ-FX15NLHZ also lists the fourth-highest EER2 and the fourth-highest SEER2. The next-highest heating capacity at 5°F belongs to the Fujitsu AOUH15KZAH1.
Place in the 15,000 Btu/h class
EPA cold-climate designation: Yes, for its single certified match. About the designation.
Its neighbors at 5°F
| Product | Kept at 5°F | Output, Btu/h | COP at 5°F | HSPF2 |
|---|---|---|---|---|
| Mitsubishi Electric MUZ-FX15NLHZ | 134% | 22,200 | 2.06 | 11 |
| Quilt QO1-M2Z18-NC-NA | 133% | 18,000 | 2.00 | 12 |
| Mitsubishi Electric MUZ-FS15NA | 121% | 19,400 | 2.00 | 10.4 |
| Mitsubishi Electric MUZ-FS15NAH | 121% | 19,400 | 2.00 | 9.9 |
| Fujitsu AOU15RLFF | 121% | 18,100 | 1.84 | 10.7 |
| Fujitsu AOU15RLFFH | 121% | 18,100 | 1.84 | 10.5 |
| Fujitsu AOUG15LZAH1 | 121% | 17,500 | 2.34 | 12.7 |
| Fujitsu AOUG15LZAS1 | 121% | 17,500 | 2.52 | 12.8 |
| Mitsubishi Electric SUZ-AA15NLHZ | 120% | 18,000 | 2.00 | 10.2 |
Top of the 15,000 Btu/h class on Output at 5°F
| Place | Product | Output at 5°F |
|---|---|---|
| 1st | Mitsubishi Electric MUZ-FX15NLHZ | 22,200 Btu/h |
| 2nd | Fujitsu AOUH15KZAH1 | 21,000 Btu/h |
| joint 3rd | Mitsubishi Electric MUZ-FS15NA | 19,400 Btu/h |
| joint 3rd | Mitsubishi Electric MUZ-FS15NAH | 19,400 Btu/h |
| 5th | Fujitsu AOUH12KUAH1 | 18,500 Btu/h |
One certified match
It is listed once, with indoor unit MSZ-FX15NL*** (AHRI reference 215611127).
Same ratings, 2 listings
- Mitsubishi Electric MUZ-FX15NLHZ
- Mitsubishi Electric MUZ-FX15NLHZ2
Close relatives in the same line
Listed on this page only.
- Mitsubishi Electric MUZ-FX09NLHZ (9,000 Btu/h class): the fourth-highest heating capacity at 5°F and the joint third-highest EER2; 123% kept at 5°F, HSPF2 13.3.
- Mitsubishi Electric MUZ-FX12NLHZ (12,000 Btu/h class): the joint fourth-highest heating capacity at 5°F and the fifth-highest share of 47°F capacity kept at 5°F; 123% kept at 5°F, HSPF2 12.4.
Certified as of October 27, 2026; on the market since 2025-01.