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

MAMMOTH(remove filter)

4 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.
1GXH24-36MSK4DHMAMMOTH · Ultra Side Dischargewith ducted air handler GMH24-**MSK4DH1	2 tons24,000 Btu/h · Ducted	1.80	92%	9.0	17.0	12.0	22,000	CEE 25CEE 26XcelES CC	2	206724412
2GXH48-60MSK4DHMAMMOTH · Ultra Side Dischargewith ducted air handler GMH48-**MSK4DH1	4 tons48,000 Btu/h · Ducted	1.80	81%	9.0	17.0	11.0	39,000	CEE 25CEE 26XcelES CC	2	206724414
3V5BV-24WMAKMAMMOTH	2 tons24,000 Btu/h · Ducted and non-ducted	1.80	48%	8.5	18.0	10.5	13,500	None	2	205767442
4V5BV-28WMAKMAMMOTH	2.5 tons28,000 Btu/h · Ducted and non-ducted	1.70	41%	8.5	18.0	10.5	13,000	None	2	205767445

Download CSV of the matching modelsAll 4 matching models, every page, in this order.