Ductless Double Zone Heat Pump Goodman Series 21 SEER Compressor 18 000 BTU Montreal
Provincial Subsidy (LogisVert): $ (Updated: November 26, 2025)
Model Number (External): MST183E21MCAA
AHRI: 10300062
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): Non / No
# ENERGY STAR ID:
Heating Capacity: -25 °C
Cooling Capacity: 18,000 BTU
Gas (Freon): R-410A
WiFi: Optional
SEER2 (Seasonal Air Conditioning Efficiency)
1
20.5
30
HSPF2 (Seasonal heating efficiency)
1
8.9
15
EER2 (Instantaneous efficiency in air conditioning)
1
11.7
20
Nominal Power: 18,000 BTU
Power at -8°C: 11100 BTU
Power at -15°C: BTU
Interior Dimensions (L x D x H): 31.6 x 7.5 x 11.70, 31.6 x 7.5 x 11.70, and 31.6 x 7.5 x 11.70 in ***
Vertical flap control (Air direction): Auto ***
Horizontal flap control (Air direction): Manuel / Manual ***
Sound Pressure Level (Indoor): 36.5 / 22.5 dB(A) ***(depending on the model chosen)***
Possible Model Number (Interior): MSH093E21AXAA and MSH123E21AXAA
CFM (Airflow) (12,000 BTU***)
1
306
700
External Dimensions (L x W x H): 33.27 x 14.29 x 27.64 in
Zones: 2 Zones (Dual Zone)
Maximum Zones: 2 Zones (Dual Zone)
Sound Pressure Level (Exterior): 62.4 dB(A)
Voltage: 220 V
MCA (Minimum Circuit Ampacity): 18 A
MOP (Maximum Overcurrent Protection): 25 A
Warranty (Compressor - Parts - Labor): 5-1-0 years
Additional Warranty: Available
Installation and Distribution of a Multi Zone with two (2) zones Heat Pump. Goodman Series 21 SEER Wall Mounted Mini Split with an 18 000 BTU Compressor in Greater Montreal.
Goodman is one of the best-known brands in North America for its top units and affordability.
These heat pumps combine economical installation, excellent cooling and heating comfort and the convenience of a remote control. Best of all, these ductless systems provide added comfort without costly modifications to your main air conditioning system.
Main features of this machine :
- High efficiency performance up to 21 SEER
- Heating down to -25°C
- Economy mode
- R-410A chlorine-free refrigerant
- DC Inverter technology compressor
- Sleep mode setting (7 hours off cycle)
- Flap position memory
- Turbo settings for rapid heating or cooling
- Cold catalyst filter
- Easy-to-clean interior exterior panels
- Two-way airflow for optimal air distribution
- Auto-restart temperature setting (remote memory automatically sets thermostat to last saved temperature setting.)
| Compressor Power | Heads Power (Zones/Inside Units) | |
| 18 000 BTU |
|
|
| 18 000 BTU | 9 000 BTU + 12 000 BTU | |
| 18 000 BTU | 12 000 BTU + 12 000 BTU |