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Spec	Mitsubishi FX Hyper-Heating 12,000 BTU 230V	Senville Elite 12,000 BTU 230V
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Our score	Not reviewed yet	SCORE7.6 / 10
Our take	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.	13,500 Btu/h at 5°F and 7,500 max at -22°F, the most cold-night heat of any 12K we review. Licensed install required for the 10/10 warranty.
Nominal size	12,000 BTU	12,000 BTU
Voltage	230V	230V
Rated heat at 47°F	13,200 BTU/h	12,000 BTU/h
Heat at 17°F	9,300 BTU/h	11,000 BTU/hbest
Heat at 5°F	16,200 BTU/hbest	13,500 BTU/h
Lowest heating temp	-22°F	-22°F
Max heat at lowest temp	8,700 BTU/hbest	7,500 BTU/h
SEER2	29.9best	29.4
HSPF2 (Region IV)	12.4	12.7best
Install type	Flare	Flare
Line set in box	n/a	16 ft
Max line run	65 ft	82 ftbest
Warranty covers owner install	No	No
Warranty, parts	5 yr	10 yrbest
Warranty, compressor	7 yr	10 yrbest
ENERGY STAR Cold Climate	Yes	Yes
ENERGY STAR	Yes	Yes
Refrigerant	R-454B	R-454B
Watch out for	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.	Senville's FAQ says no to owner installs; warranty registration asks for the installing company and invoice. Senville's site lists higher HSPF2 than the AHRI figures on NEEP; we use the certified numbers.
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