Compare mini-splits & heat pumps / Mitsubishi M-Series FX
Mitsubishi · M-Series FX
Mitsubishi FX Hyper-Heating 12,000 BTU 230V
Model MSZ-FX12NL · MUZ-FX12NLHZ
Not fully reviewed yet
Nearly twice the MrCool 12k's heat at 5°F and operation to -22°F, from a licensed contractor only. Bought online and self-installed, it has no factory warranty.
Specs
| Spec | Mitsubishi FX Hyper-Heating 12,000 BTU 230V |
|---|---|
| Nominal size | 12,000 BTU |
| Voltage | 230V |
| Rated heat at 47°F | 13,200 BTU/h |
| Heat at 17°F | 9,300 BTU/h |
| Heat at 5°F | 16,200 BTU/h |
| Lowest heating temp | -22°F |
| Max heat at lowest temp | 8,700 BTU/h |
| SEER2 | 29.9 |
| HSPF2 (Region IV) | 12.4 |
| Install type | Flare |
| Max line run | 65 ft |
| Warranty covers owner install | No |
| Warranty, parts | 5 yr |
| Warranty, compressor | 7 yr |
| ENERGY STAR Cold Climate | Yes |
| ENERGY STAR | Yes |
| Refrigerant | R-454B |
| Heat at 17°F, maximum | 18,200 BTU/h |
| Max heat at -10°F | 13,200 BTU/h |
| Electrical | 208/230V, 14 A min circuit ampacity, 15 A max overcurrent |
| Warranty, registered | 10 yr parts and compressor (owner-occupied, registered within 90 days); 12 yr via a Diamond Contractor |
| Line set | Sold separately; factory charge covers 25 ft |
Sources: NEEP ccASHP list · Mitsubishi FX submittal · Mitsubishi FX install manual · Mitsubishi M-Series warranty statement
Before you buy
- GX, JX, the older R-410A FS/GS/GL and the P-Series are different units; confirm the MUZ-FX12NLHZ outdoor unit on any quote.
- Mitsubishi's warranty requires a licensed HVAC contractor install; online or auction purchases outside that get no warranty support.
Compare it with
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- Mitsubishi FX Hyper-Heating 12,000 BTU 230V vs Gree Sapphire R32 12,000 BTU 230V (our score 7.5)
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