LG heat pumps

We track 14 LG heat pump outdoor units, certified to ENERGY STAR by LG Electronics, Inc.. 14 are cold-climate certified. The most efficient for heating is the KUSXB091A (HSPF2 10.6), and the strongest cold-weather performer is the KUSXA181A, which keeps 120% of its heat output at 5°F.

Model	Type	Size	SEER2	HSPF2	Heat kept @5°F	Est. cost/yr
KUSXB091A	Mini-split	1 ton	16.4–22.2	10.6	78%	$480
KUSXB121A	Mini-split	1 ton	16.4–21.7	10.5	74%	$572
KUSXA181A	Mini-split	1.5 tons	17.5–20.5	10	120%	$787
KUSXB181A	Ducted	1.5 tons	15.2–17.5	10	110%	$818
KUSXB241A	Ducted	2 tons	15.2–17.5	9.7	81%	$1,114
KUSXA301A	Ducted	2.5 tons	15.5–18.2	9.8	97%	$1,395
KUSXA361A	Ducted	3 tons	15.5–18.2	9.6	85%	$1,654
KUSXB361A	Ducted	3 tons	15.2–17.5	9.5	85%	$1,675
ARUM036GSS5	Mini-split	3 tons	17–23	10.6	91%	$1,876
KUSXB481A	Ducted	4 tons	15.2–18	9.4	77%	$2,143
KUSXA482A	Ducted	4 tons	15.9–19	9.6	92%	$2,116
ARUM048GSS5	Mini-split	4 tons	17–23.3	10.3	79%	$2,285
KUSXB601A	Ducted	4.5 tons	15.2–17.5	9.4	80%	$2,436
ARUB060GSS4	Mini-split	5 tons	16.2–23	10	75%	$2,687

Estimated yearly cost at U.S.-average rates. Open a model for state-by-state estimates.