Goodman MST363G22MHAA 3 ton ductless mini-split

Brand Goodman ENERGY STAR certified Series MSH Series Updated

Most EfficientCold climate
Goodman Ductless mini-split

Model no. MST363G22MHAA

Size
3 tons
SEER2
21
EER2
12
HSPF2
10.9

R-410A

Goodman ductless mini-split from the MSH Series line. Rated 19.4 to 21 SEER2 across 3 certified matchups. Meets ENERGY STAR cold climate criteria.

Model

Model number MST363G22MHAA
Product series MSH Series
Stages Variable speed

Performance

Nominal size 3 tons
Cooling capacity 36,000 BTU/h
Heating capacity 36,000 BTU/h
SEER2 21
EER2 12
HSPF2 10.9

Cold weather

Heating capacity at 17°F 30,000 BTU/h
Heating capacity at 5°F 36,000 BTU/h
COP at 5°F 1.95
Meets ENERGY STAR cold climate criteria Yes

Ratings across matchups

Lowest SEER2 19.4
Highest SEER2 21
Lowest HSPF2 10
Highest HSPF2 10.9
Certified matchups 3

Refrigerant

Refrigerant type R-410A

Ratings and warranty

AHRI reference number 214438131
ENERGY STAR certified Yes
ENERGY STAR Most Efficient Yes
On the market since March 18, 2024
ENERGY STAR listed June 25, 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.
21 12 10.9 214438131
20.2 12 10.45 214438133
19.4 12 10 214438132