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GreyVolt Series Energy Star Certified 12000 BTU 21 SEER2 208-230V Mini Split Air Conditioner and Heater Gray

4.14
50 Reviews
Item No: 51763928
C$779.00C$1,29739% Off
Select: GreyVolt Series 12000 BTU Works at -7℃ Energy Star Certified
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Key Features

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● High-efficiency Cooling and Heating: With a 12000 BTU cooling capacity and 1 ton heat pump, this mini split air conditioner is powerful enough to cool or heat rooms up to 750 sq.ft. Plus, featuring 21 SEER2, 10 HSPF, ECO mode and inverter technology, the AC unit ensures higher energy efficiency and lower energy consumption.
● 4-in-1 Comfort and Quiet Operation: This split AC unit features 4 working modes: cool, heat, dry and fan, making it suitable for year-round use. The low-noise operation (≤23 dB) ensures a peaceful sleep while the smart 0-24h timer allows for customized scheduling of the unit's operation.
● User-Friendly Design: Users can control the temperature, mode, and timer settings via the included remote control, voice commands. Moreover, with auto defrost function and ETL certification, the air conditioner ensues prolonged service time and high security..
● Self-Cleaning and User-friendly DesignThe split AC boasts 57℃ high-temperature self-cleaning function, allowing you to free your hands and enjoy fresh air. The removable and washable filter makes cleaning a breeze. Moreover, with auto defrost function and ETL certification, the air conditioner ensues prolonged service time and high security.
● Comprehensive Installation Kit: Due to the large size, this powerful and energy-saving split AC unit will come in 2 boxes. The all-inclusive set includes 1x indoor unit, 1 x outdoor unit, 2 x copper connection pipes, 1 x power line, 1 x communication wire, 1 x drain hose, 1 x remote control, 1 x tape, 1 x wall sleeve and 1 x putty.

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Specifications

Color of Indoor UnitGrey
Color of Outdoor UnitWhite
MaterialMetal, Aluminum, Plastic
Indoor Unit Size30" x 8"x 11.5"(L x W x H)
Outdoor Unit Size28" x 11" x 21"(L x W x H)
Cooling Capacity12000 BTU
Heating Capacity12300 BTU
Cooling Power920W
Heating Power940W
SEER221
HSPF210
Coverage Area750 sq. ft
Air Flow Rate353 CFM
Voltage208-230V~60Hz/1PH
Dehumidifying Capacity51 Pints/Day
Temperature Setting Range16℃~32℃
Operating Ambient Temperature-7℃-48℃
RefrigerationR32
Indoor Noise Level23 dB
Outdoor Noise Level50 dB
Total Net Weight75 lbs
Box Qty2(May vary by batch)
  • Overview

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Overview

● 8 years Warranty for compressor and 5 years for parts to ease your worries.

● Energy Star Certified and AHRI Certified

● 12000 BTU cooling capacity for rooms up to 750 Sq. Ft

● 4-in-1 design includes cooling, heating, drying and fan

● Innovative inverter technology improves energy efficiency

● Handy remote control with digital display for easy operation

● 0-24hour timer and quiet sleep mode for a peaceful sleep

● Multiple functions include swing, turbo, ECO, iFEEL and more

● Washable filter and self-cleaning for easy maintenance

● 360° air flow supply effectively avoids direct blowing

● Low/medium/high speed for customized comfort

● Auto defrost function prevents damage to the unit

● ETL and AHRI certification ensure reliable use

● Automatically adjust the speed of the compressor according to changes in indoor temperature to save energy

How to Install a Costway Ductless Mini Split Air Conditioner

Reviews

4.14
50 Reviews
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28
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Frequent Mentions

  • C

    This thing is awesome!!

    05/23/2026

    Installed in my 40 foot camper. Installation was a breeze and this thing puts out some serious air! It’s extremely quiet, you can’t even hear it run. Very impressed especially for the price. Highly recommend!!

    Customer Photos
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    Customer Photos
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  • P

    Works great. Easy to install.

    04/29/2026

    I had to wait for indoor unit about 1 week after outside unit then waited on mounting bracket -ordered afterwards. After high winds abated I installed outdoor unit and connected inside unit. Works great.

    Customer Photos
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    Customer Photos
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  • A

    Great

    11/25/2025

    Delivered in a timely manner. Easy to install. Works as it should. 10 out of 10 would recommend

    Customer Photos
    Preview
    Customer Photos
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  • L

    Mini Split

    10/08/2025

    I bought this for my living room area because I have a dinosaur 4 ton heat pump that runs constantly. So far working great. WiFi program not so great.

    Customer Photos
    Preview
  • A

    Air conditioner

    03/08/2026

    I loved my other Costway mini split so much that I bought a second one. The first one I use in my living room and the second one is in my dining room. They work amazing and the cost is better than any other brand I have looked at. Ian planning on buying more for my bedrooms.

Q&A

  • Q:
    Are these units pre charged with refrigerant?
    A:
    Yes, the unit is pre-charged with refrigerant.
    Costway representative
  • Q:
    does it plug up to a 110 volt or 220 volt
    A:
    It operates on 110 volts. It is designed to be compatible with standard American voltage outlets.
    Costway representative
  • Q:
    How cold do these units operate & give heat? I find no info to tell me in the description or specifications.
    A:
    Cooling capacity range:2728 to 14322 Btu/h (800 to 4200 W) Heating capacity range:2728 to 15004 Btu/h (800 to 4400 W)
    Costway representative
  • Q:
    What’s the name of the app my instructions looks like it’s been ran the the copier 100 times can’t make out the QR code???
  • Q:
    I want to hear/cool a 500 square foot tiny home. Large open area in front but 2 rooms in back. How many units would be required to comfortably heat/cool the area??
    A:
    For a home with an area of ​​500 square feet, it is generally recommended to use an air conditioner with a power output greater than 12,000 BTU, which is sufficient to cool the entire space.
    Costway representative
  • Q:
    Does the mini split units come prefilled with refrigerant
    A:
    Yes, the mini split unit comes pre-charged with refrigerant. This means it is ready for installation without the need for additional refrigerant filling before use.
    Costway representative
  • Q:
    What is the coldest weather this unit will heat!
    A:
    The coldest weather in which the unit can effectively heat is when the outdoor temperature is above -7°C (19.4°F). Below this temperature, the heating performance may decrease significantly, and the unit may not function properly in heating mode.
    Costway representative
  • Q:
    What is the amperage of this unit at 230v? Energy Star Certified 12000 BTU 21 SEER2 208-230V Mini Split Air Conditioner and Heater Gray I actually want a 9,000 BTU unit in gray at 230v. Do you sell those? Thank you, Mike
    A:
    The amperage for the 12,000 BTU mini split unit (Energy Star Certified 12000 BTU 21 SEER2 208-230V Mini Split Air Conditioner and Heater Gray) at 230V is 15A. As for your request for a 9,000 BTU unit in gray at 230V, I recommend checking our website or contacting customer service for the most accurate and up-to-date information on available products. Thank you for your inquiry, Mike!
    Costway representative
  • Q:
    vous avez plusieurs réponse pour la température qu'ont peut chauffer, il as des réponse a -15, -7, -19 asser dur a suivre ?
    A:
    La température extérieure minimale à laquelle l'unité peut fonctionner est de -7°C (19,4°F) pour le chauffage. En dessous de cette température, l'efficacité de chauffage peut diminuer. Il est donc recommandé de ne pas utiliser cette unité lorsque la température extérieure est inférieure à -7°C.
    Costway representative
  • Q:
    bonjours je voudrais savoir si il faut qu'elle sois instaler par un professionnel acrédité pour honnorer la garantie?
    A:
    Il est recommandé que l'installation soit effectuée par un professionnel accrédité afin de garantir la validité de la garantie. Une installation correcte est essentielle pour assurer le bon fonctionnement de l'appareil et respecter les conditions de garantie.
    Costway representative
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