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18,000 BTU Dual Zone Mini Split Air Conditioner - Heat Pump

$1,599.99
$1,599.99 $1,799.99

TST-MZ-M18-D99

Key Features:

  • Energy Star certified: Rated at 21 SEER2 and COP 13
  • Noise level: 23-40dB
  • Works in harsh conditions (-22°F to 118°F)
  • WiFi control
  • All accessories included
  • R410A refrigerant
  • 5-year warranty
Zone Combination

🛠️Now offering installation services in Texas and Washington State. To request service and pricing, please fill out the HVAC Installation Service Form

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Summary

The TOSOT Muse Series Multi-Zones Split System provides cooling in multiple rooms using just one outdoor unit. It is designed for durability, efficiency, and advanced eco-friendly performance.

    • Energy Star certified: Rated at 21 SEER2 and COP 13 (above average level), this system can save you up to 50% on energy costs compared to units rated at SEER2 10.
    • Inverter DC technology: Heat and cool faster while consuming less energy than traditional units.
    • For extreme heat and cold conditions: Performs exceptionally well even under extreme heat (118°F) and ultra-chilling (-22°F) weather conditions.
    • WiFi enabled: Control your device using the Gree+ app or through voice commands using Alexa or Google Home
    • All accessories included: Piping max. length 32 f.t. Extra length available for sale if needed.
    • Recommended for rooms between 750 and 1250 sq. ft.

    High-Efficiency DC Inverter

    With over 30 years of manufacturing experience in the HVAC industry, TOSOT is aware of the importance of durability and energy efficiency. The ultra-inverter DC technology is engineered to lower energy costs and achieve above-average SEER/COP ratings.  With self-developed inverter DC technology, the compressor runs in a high-frequency mode, which enables the room to cool down or heat up at a faster rate.

    Works in Harsh Conditions (-22°F to 118°F)

    The TOSOT multi-zone system is ideal for climate control, whether you're in hot states like Arizona in the south or cold regions like Michigan in the north. This model performs exceptionally well year-round, providing comfort to your family regardless of the season. Even during extended winter vacations, the 45°F(8°C) heating function prevents freezing pipes while maintaining low energy costs.

    Safe and Flexible

    TOSOT outdoor units are designed to be compact enough to fit into any layout. The flexibility in piping provides greater installation options and reduced installation costs. Additionally, important components are covered within a fireproof electric box, ensuring resistance to fire hazards.

    Blue Fin Compressor

    Blue Fin shielding protects against rust and corrosion and the effects of weather, such as water droplets, acid and air salts. The TOSOT Free Match split system maintains long-lasting performance even in coastal areas with harsh environmental conditions.

    Intelligent Defrosting 

    TOSOT's intelligent defrosting technology accurately detects the frosting status of an outdoor unit using temperature sensors. It then smartly adjusts the defrosting process according to the actual conditions, enhancing heating efficiency and ensuring room comfort.

    Manufacturer Warranty

    The Muse Series multi-zone system comes with a standard 5-year warranty for both the compressor and parts. For any inquiries or assistance, please email support@tosotdirect.com or call us at +1 702-514-1603‬ (9am-6pm EST, Mon-Fri). Our professional support team will assess your case and either cover your repair costs or provide free replacement parts, depending on the situation.

    Certifications

    More Functions

    4 Modes, 1 Unit 

    Powerful cooling, heating, fan, and dehumidifying functions all in one unit. 

    Compatible with Smart Thermostats

    Works with third-party smart thermostat kits such as Google Nest, Honeywell, Ecobee, and more. 

    Less Noise

    The noise level of the indoor unit is only 24-40 dB, comparable to a whispered conversation or quiet library. 

    Sleep Mode

    Enable sleep mode to adjust for scientifically-proven optimal sleeping temperature automatically.

    SMART MULTI-ZONE SPLIT SYSTEM

    Individualized Comfort, Ultimate Efficiency
    eligible for tax credit

    Save 50% on Energy Use

    Energy Star Certified for Superior Efficiency
    Tested by AHRI and Energy Star, this 21 SEER2-rated system can save you up to 50% on energy bills compared to units rated at 10 SEER2.
    Eligible for up to $2,000 in tax credits.

    How To Get Rebates?

    inverter technology

    High-Efficiency DC Inverter

    Advanced Technology for Rapid and Stable Comfort
    With over 30 years of HVAC expertise, TOSOT understands the importance of durability and energy efficiency.
    The patented high-frequency inverter DC compressor cools and heats rooms quickly and operates quietly without frequent on-off cycling.

    Efficient Climate Control for Every Season

    Perfect for Large Houses
    Get reliable heating and cooling for up to 900 sq. ft. Our system boasts 21 SEER2 and COP 13 ratings, ensuring energy-efficient comfort throughout the year.
    21 Btu/h SEER2
    13 Btu/h COP
    900 Sq. Ft Coverage
    1354 CFM Airflow
    cools even at 118F, heats even at -22F

    Works in Harsh Conditions

    Climate Solution for Any Region
    This model performs exceptionally well year-round in hot southern states like Arizona or cold northern regions like Michigan, even under extreme heat (118°F) and ultra-cold (-22°F) weather conditions.
    During extended winter trips, the 45°F(8°C) heating function prevents freezing pipes while maintaining low energy costs.

    Blue Fin Technology

    Heat Exchanger
    The blue aluminum fin features an anti-corrosion coating. Its super hydrophilic performance boosts heat exchanging efficiency by 40%, saving energy compared to non-Blue Fin models
    Durable Outdoor Unit
    Corrosion-resistant and treated for high resistance to rust and salty air, the unit ensures long-lasting performance.
    defrosting proecss

    Intelligent Defrosting

    TOSOT's intelligent defrosting technology accurately detects the frosting status of an outdoor unit using temperature sensors.
    It then smartly adjusts the defrosting process according to the actual conditions, enhancing heating efficiency and ensuring room comfort.
    Whisper-Quiet Indoor Comfort
    Powerful Yet Tranquil
    The noise level of the indoor unit is only 23-40 dB, bringing you closer to complete quietness while keeping the noise of the compressor entirely out of your room.
    23 dB(A) Lowest Noise 23 dB(A) Lowest Noise

    Compatible with Smart Thermostats

    Works with third-party smart thermostat kits such as Google Nest, and more. 

    WiFi Control

    Control your device using the Gree+ app or voice commands using Alexa or Google Home.

    4 Modes, 1 Unit 

    Powerful cooling, heating, fan, and dehumidifying functions all in one unit. 
    Zone and Head Combinations

    Model

    Zone

    Head Combinations

    Coverage Areas

    18K

    Dual Zone

    9K+9K

    900 sq.ft

    24K

    Dual Zone

    12K+12K

    1,500 sq.ft

    30K

    Dual Zone

    Tri-Zone

    12K+18K

    12K+9K+9K

    1,950 sq.ft

    1,650 sq.ft

    36K

    Dual Zone

    Dual Zone

    Tri-Zone

    Tri-Zone

    Quad Zone

    12K+24K

    18K+18K

    12K+12K+12K

    18K+9K+9K

    9K+9K+9K+9K

    2,250 sq.ft

    2,400 sq.ft

    2,250 sq.ft

    2,100 sq.ft

    1,800 sq.ft
    *It's important to note that the indoor BTU range should typically be within 100% to 125% of the total BTUs (British Thermal Units) of the outdoor condenser unit in an HVAC system. For example, for a 24K BTU outdoor unit, the total BTUs of the indoor units added together should be between 24-30K BTUs. This range ensures optimal efficiency and performance of the system. If the indoor capacity is lower or higher than this standard range, it can lead to reduced efficiency and potentially other issues with the system's operation.

    5-Year Manufacturer Warranty

    Both the Compressor and the Parts
    The Free Match multi-zone system comes with a standard 5-year warranty for both the compressor and parts. Our professional support team will assess your case and either cover your repair costs or provide free replacement parts, depending on the situation.
    What’s In The Box
    All accessories included

    You may receive multiple packages depending on your specific model. For any questions, please contact support@tosotdirect.com

    Package 1.
    • Indoor Unit
    • Signal Cables
    • Screws Sets
    • Remote Control
    • Remote Control Holder
    • Batteries
    Package 2.
    • Outdoor Condenser
    • Conversion Joint (Unavaialbe for 18K model)
    • Drain Joint
    • Tapes
    Package 3.
    • Refrigerant Pipe Set
    • Wall Cap
    • Wall Sleeve
    • Sealing Gum
    • Drain Hose
    • Tapes

    Specification

    Download user manual Download tech sheet

    Technical Data

    Model Number GWHD<18>ND3MO
    Style Ductless Mini Split AC With Heat Pump
    Number of Zones 2
    Power Supply (V-Ph-Hz) 208/230V, 60 Hz
    SEER2 (Btu/h)/W 21
    EER (Btu/h)/W 12.00
    COP (Btu/h)/W 13.0
    HSPF2 10.00
    Cooling Range (Btu/h) 7000~19600
    Heating Range (Btu/h) 7000~19600
    Rated current (A) 10.0/9.0
    Rated Power Input (kW) 2.3/2.1
    Max. Fuse (A) 20
    Refrigerant Type R410A
    Alexa/Google Home Yes
    Warranty 5-Year

    Dimensions & Weights

    dimensions

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