TOSOT by GREE 3 Zone Mini Split AIR Conditioner Heat Pump 24,000 BTU 9K-9K-12K Wall Unit 21 SEER Energy Star Toshiba Compressor 5 Year Warranty TM24ML301 - A&A Mini Splits

TOSOT by GREE 3 Zone Mini Split AIR Conditioner Heat Pump 24,000 BTU 9K-9K-12K Wall Unit 21 SEER Energy Star Toshiba Compressor 5 Year Warranty TM24ML301

Regular price $2,357.00 $4,460.00 Sale

Tosot TM36H4O 3-Zone Ductless Mini Split Heat Pump System

The Tosot TM36H4O Multi-Zone Mini Split System is a high-efficiency, whisper-quiet solution ideal for homeowners and small commercial spaces seeking zoned comfort. Equipped with three indoor units rated at 9,000 BTUs each, this system is engineered to deliver year-round heating and cooling performance with unmatched control and reliability.

Thanks to GREE's advanced G10 inverter-driven compressor, the TM36H4O modulates power use based on real-time demand, reducing energy consumption while maintaining consistent temperatures. With a 21 SEER efficiency rating, built-in WiFi, and robust cold-climate capabilities down to -4°F, this model offers versatility, smart technology, and low ambient operation all in one package.


Key Features:

  • Inverter Technology: Adjusts compressor speed to reduce energy waste and maintain set temperatures with precision.
  • Ultra Heat Functionality: Reliable performance even in freezing climates down to -4°F.
  • WiFi-Enabled: Manage zones via mobile app for scheduling, remote control, and smart energy use.
  • Quiet Operation: Low indoor sound levels ideal for bedrooms, home offices, and libraries.
  • Auto Swing: Vertical and horizontal airflow adjustments for even distribution.
  • Dehumidify Mode: Effectively removes moisture without overcooling the room.
  • Heated Compressor Belt + Drain Pan Heater: Protects outdoor unit in cold conditions.
  • Intelligent Defrost + Preheat: Increases efficiency and system longevity in winter.
  • Sleep Mode: Automatically adjusts temperature at night to save energy while maintaining comfort.
  • Soft Start + Auto Restart: Protects electrical system and resumes operation after outages.

System Specifications:

  • Model Number(s): TM36H4O - (3) TW09HQ2C2DI
  • System Type: Ductless Mini Split Heat Pump
  • Air Handler Style: Wall Mounted (Indoor Units)
  • Number of Zones: 3-Zone
  • Total Cooling Capacity: 24,600 BTUs
  • Total Heating Capacity: 27,000 BTUs
  • SEER (Seasonal Energy Efficiency Ratio): 21
  • HSPF (Heating Seasonal Performance Factor): 11.5
  • Compressor Type: Inverter (Variable Speed)
  • Refrigerant Type: R410A
  • Electrical Requirements: 208/230V, 1 Phase
  • Minimum Outdoor Operating Temp: -4°F (Heating)
  • Outdoor Unit Dimensions: 43 2/5" H x 42 1/2" W x 17 1/3" D
  • Parts Warranty: 5 Years
  • Compressor Warranty: 7 Years

BTU Sizing Chart for Mini Split Systems

This chart helps estimate the cooling or heating capacity needed for each room. For multi-zone systems, sum the BTUs required per room.

Room Size (sq. ft.) Required BTUs
150 to 250 6,000 BTUs
250 to 300 7,000 BTUs
300 to 350 8,000 BTUs
350 to 400 9,000 BTUs
400 to 450 10,000 BTUs
450 to 550 12,000 BTUs
550 to 700 14,000 BTUs
700 to 1,000 18,000 BTUs
1,000 to 1,200 21,000 BTUs
1,200 to 1,400 23,000 BTUs
1,400 to 1,500 24,000 BTUs
1,500 to 2,400 36,000 BTUs
2,400 to 3,200 48,000 BTUs