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

Whisperair(remove filter)

5 models

Sorted by manufacturer and model.

Page 1 of 1
# · Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	EER2	Btu/h @5°F	Meets	Combos	AHRI ref.
1WAH12-1(O)Whisperairwith ductless indoor unit WAH12-1(I)	1 ton12,000 Btu/h · Non-ducted	2.08	—	8.5	20.0	10.0	—	None	1	215792208
2WAH12-2(O)Whisperairwith ductless indoor unit WAH12-2(I)	1 ton12,000 Btu/h · Non-ducted	2.08	20%	8.5	17.0	9.0	—	None	1	215792209
3WAH18-2(O)Whisperairwith ductless indoor unit WAH18-2(I)	1.5 tons18,000 Btu/h · Non-ducted	2.20	—	9.0	19.0	10.5	3,600	None	1	215792210
4WAH24-2(O)Whisperairwith ductless indoor unit WAH24-2(I)	2 tons23,000 Btu/h · Non-ducted	1.98	—	8.3	18.5	10.5	4,200	None	1	215792211
5WAH36-2(O)Whisperairwith ductless indoor unit WAH36-2(I)	3 tons34,000 Btu/h · Non-ducted	2.21	—	8.0	17.0	9.5	5,200	None	1	215792212

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