Explore certified heat pump models

Filter every outdoor model in this refrigerant group. Each row’s numbers come from one representative AHRI certification (its best COP at 5°F). Sorting by a rating leaves out models without that rating.

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ExploreData as of Oct 11, 2026updated Oct 11, 2026 · sources

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Duct type: “Ducted (incl. mixed)” lists every model with a ducted or a mixed (multi-zone) certification, since a mixed system can serve ducted heads; “Ductless (incl. mixed)” every model with a ductless or a mixed one. The rankings compare mixed pairings with ductless units. Why

Wells(remove filter)

37 models

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# · Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	EER2	Btu/h @5°F	Meets	Combos	AHRI ref.
26WOS-12ECO/115Wellswith ductless indoor unit WIHW-12ECO/115	1 ton12,000 Btu/h · Non-ducted	2.21	58%	9.2	19.0	8.8	7,000	None	1	215864033
27WOS-12ECO/230Wellswith ductless indoor unit WIHW-12ECO/230	1 ton12,000 Btu/h · Non-ducted	2.21	58%	8.8	18.0	8.8	7,000	None	1	215864035
28WOS-12PRE/230Wells · WOS Serieswith ductless indoor unit WI4C-12MOC/230	1 ton12,000 Btu/h · Ducted and non-ducted	1.99	96%	11.6	22.2	12.5	11,500	CEE 25CEE 26XcelES CC	6	215864070
29WOS-12QUA/115Wells · WOS Serieswith ductless indoor unit WIHW-12QUA/115	1 ton12,000 Btu/h · Non-ducted	2.21	61%	10.4	23.2	12.5	7,300	CEE 25CEE 26	1	215864039
30WOS-12QUA/230Wells · WOS Serieswith ductless indoor unit WICS-12MOC/230	1 ton12,000 Btu/h · Ducted and non-ducted	2.51	74%	11.0	24.6	12.7	8,900	CEE 25CEE 26XcelES CC	6	215864065
31WOS-18ECO/230Wellswith ductless indoor unit WIHW-18ECO/230	1.5 tons17,000 Btu/h · Non-ducted	2.10	59%	8.7	18.3	9.9	10,600	None	1	215864036
32WOS-18PRE/230Wells · WOS Serieswith ducted air handler WIAH-18MOC/230	1.5 tons18,000 Btu/h · Ducted and non-ducted	2.20	92%	10.0	18.0	12.0	18,000	CEE 25CEE 26XcelES CC	8	215864022
33WOS-18QUA/230Wells · WOS Serieswith ducted air handler WIDH-18MOC/230	1.5 tons17,500 Btu/h · Ducted and non-ducted	2.41	71%	11.3	20.0	13.3	14,200	CEE 25CEE 26XcelES CC	8	215864062
34WOS-24ECO/230Wells · WOS Serieswith ductless indoor unit WIHW-24ECO/230	2 tons24,000 Btu/h · Non-ducted	2.01	71%	8.5	17.0	9.0	17,100	XcelES CC	1	215864037
35WOS-24PRE/230Wells · WOS Serieswith ductless indoor unit WI4C-24MOC/230	2 tons23,400 Btu/h · Ducted and non-ducted	2.23	95%	11.6	20.7	12.0	23,800	CEE 25CEE 26XcelES CC	5	215864072
36WOS-24QUA/230Wells · WOS Serieswith ductless indoor unit WI4C-24MOC/230	2 tons24,000 Btu/h · Ducted and non-ducted	2.30	74%	10.5	22.0	12.0	18,500	CEE 25CEE 26XcelES CC	5	215864053
37WOS-33PRE/230Wells · WOS Serieswith ducted air handler WIAH-36MOC/230	3 tons33,000 Btu/h · Ducted and non-ducted	2.00	97%	10.0	16.5	11.7	34,000	CEE 25CEE 26XcelES CC	2	215864024

Download CSV of the matching modelsAll 37 matching models, every page, in this order.