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

3 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.
1AUHW09KR32-OWILLIS · ULTIMAwith ductless indoor unit AUHW09KR32-I	1 ton9,100 Btu/h · Ducted and non-ducted	2.11	108%	11.2	30.0	16.8	11,500	CEE 25CEE 26CEE AdvXcelDOEES CC	6	217007963
2FLEX60KUHR32Willis · FLEXX R32with ducted air handler FLEXAH60KR32	4.5 tons53,000 Btu/h · Ducted	2.10	100%	10.5	18.5	11.5	54,000	CEE 25CEE 26CEE AdvXcelDOEES CC	4	216720958
3MZUHW36KR32-OWILLIS · MULTI HEAT	3 tons36,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)	2.10	100%	10.0	21.0	12.0	36,000	CEE 25CEE 26CEE AdvXcelDOEES CC	3	216772311

Download CSV of the matching modelsAll 3 matching models, every page, in this order.