ECOTEMP heat pumps

19 ENERGY STAR certified ECOTEMP outdoor units (19 central). The most efficient is the W5H8T24*K*AAA at 18.5 SEER2 and 8.1 HSPF2.

Some of these units are also certified under Grandaire, BROCK, PAYNE HEATING AND COOLING, Bryant.

ENERGY STAR data, updated October 12, 2026

19 models, ranked by SEER2 (cooling efficiency), then HSPF2.

#							Cold
1	ECOTEMP W5H8T24KAAA2-STAGE 18 SEER HP	2-ton	18.5	14.0	8.1	11,400	No	248
2	ECOTEMP W5H8T48KAAA2-STAGE 18 SEER HP	4-ton	18.0	13.0	8.5	26,200	No	212
3	ECOTEMP W5H8T60KAAA2-STAGE 18 SEER HP	5-ton	17.5	13.0	8.5	31,600	No	70
4	ECOTEMP W5H8T36KAAA2-STAGE 18 SEER HP	3-ton	17.0	13.0	8.5	19,600	No	138
5	ECOTEMP W5H5S24KAAA15 SEER2 HP	2-ton	16.5	13.0	8.5	11,900	No	154
6	ECOTEMP W4H7T60KAAA2-STAGE 17 SEER HP	5-ton	16.5	12.5	8.1	-	No	2
7	ECOTEMP W4H7T24KAAA2-STAGE 17 SEER HP	2-ton	16.5	12.5	8.1	-	No	2
8	ECOTEMP W4H7T48KAAA2-STAGE 17 SEER HP	4-ton	16.5	12.5	8.1	-	No	2
9	ECOTEMP W5H5S19KAAA15 SEER2 HP	1.5-ton	16.0	13.0	8.0	8,500	No	56
10	ECOTEMP W5H5S31KAAA15 SEER2 HP	2.5-ton	16.0	13.0	8.0	14,000	No	30
11	ECOTEMP W5H5S36KAAA15 SEER2 HP	3-ton	16.0	13.0	8.0	18,100	No	32
12	ECOTEMP W5H5S18KAAA15 SEER2 HP	1.5-ton	15.5	12.5	8.0	8,600	No	48
13	ECOTEMP W5H5S48KAAALEGACY 15 SEER2 HP	4-ton	15.5	12.0	7.8	24,400	No	8
14	ECOTEMP W5H5S42KAAA15 SEER2 HP	3.5-ton	15.5	13.0	7.8	19,900	No	6
15	ECOTEMP W4H7T36KAAA2-STAGE 17 SEER HP	3-ton	15.2	11.7	8.1	-	No	2
16	ECOTEMP W4H5S60KAAA15 SEER2 HP	5-ton	15.2	12.5	8.1	-	No	2
17	ECOTEMP W5H5S30KAAA15 SEER2 HP	2.5-ton	15.2	12.0	8.1	13,900	No	8
18	ECOTEMP 27SCA560A**30COMFORT 15 SEER2 HP	5-ton	15.2	12.5	7.8	28,600	No	2
19	ECOTEMP W4H5S30KAAA15 SEER2 HP	2.5-ton	15.2	12.5	7.8	12,900	No	4