Goodman MST183G22MHAA 1.5 ton ductless mini-split

Brand Goodman ENERGY STAR certified Series MSH Series Updated

Most EfficientCold climate
Goodman Ductless mini-split

Model no. MST183G22MHAA

Size
1.5 ton
SEER2
20.5
EER2
12.5
HSPF2
9

R-410A

Goodman ductless mini-split from the MSH Series line. Rated 19 to 20.5 SEER2 across 3 certified matchups. Meets ENERGY STAR cold climate criteria.

Model

Model number MST183G22MHAA
Product series MSH Series
Stages Variable speed

Performance

Nominal size 1.5 ton
Cooling capacity 19,000 BTU/h
Heating capacity 20,000 BTU/h
SEER2 20.5
EER2 12.5
HSPF2 9

Cold weather

Heating capacity at 17°F 16,000 BTU/h
Heating capacity at 5°F 19,000 BTU/h
COP at 5°F 1.85
Meets ENERGY STAR cold climate criteria Yes

Ratings across matchups

Lowest SEER2 19
Highest SEER2 20.5
Lowest HSPF2 9
Highest HSPF2 9.3
Certified matchups 3

Refrigerant

Refrigerant type R-410A

Ratings and warranty

AHRI reference number 214438125
ENERGY STAR certified Yes
ENERGY STAR Most Efficient Yes
On the market since March 18, 2024
ENERGY STAR listed June 13, 2026

Notes

Certified matchups

Top certified matchups for this outdoor unit, from ENERGY STAR data. Ratings depend on the indoor coil or furnace it is paired with.

Indoor unit Furnace SEER2 EER2 HSPF2 AHRI ref.
20.5 12.5 9 214438125
19.75 12.25 9.15 214438127
19 12 9.3 214438126