Search  for anything...
TOSOT

TOSOT 12,000 BTU Mini Split AC Heating Pump, 19 SEER2 230V, Cosmo Series

  • Based on 214 reviews
Condition: New
Checking for the best price...
$689.99 Why this price?
Save $109.01 was $799.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Sain Store
Arrives Sunday, Oct 25
Order within 23 hours and 17 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Set name: 12,000 BTU 230V - 19 SEER2


Features

  • LOWER POWER BILLS FIRST:Save on year-round comfort with a 19 SEER2 inverter compressor. This 12,000 BTU mini split delivers powerful cooling in 118F summer heat and stable heating in -13F winter depths.
  • SMART COMFORT BEFORE YOU ARRIVE:Control your 230V mini split from the GREE+ app, voice control, or included remote. Set daily or weekly schedules to pre-cool or pre-heat your room before you get home.
  • QUIET ENOUGH FOR SLEEP SPACES:Operating at just 22dB36dB, this ductless air conditioner is ideal for bedrooms, nurseries, and offices, with cooling, heating, dry, fan, iFEEL sensing, and self-cleaning functions.
  • COMPLETE INSTALL SETUP:Comes with a 16 ft. copper line set and essential installation accessories to reduce extra parts purchases. Professional installation is required, including proper vacuuming and refrigerant handling.
  • CERTIFIED LONG-TERM SUPPORT:Built to meet UL, ETL, and AHRI standards and backed by TOSOT quality with GREE HVAC manufacturing expertise, a 5-year parts warranty, 8-year compressor warranty, and 24/7 technical assistance.

Description

TOSOT Cosmo series' SEER2 rating of up to 22 helps lower energy consumption by up to 62%, reducing your electricity bills while maintaining powerful cooling and heating The advanced inverter compressor fine-tunes performance for whisper-quiet operation, producing sound levels as low as 22 dB to 36 dB, making it ideal for bedrooms, home offices, nurseries, and other quiet areas where noise matters The dehumidification function removes excess moisture from the air, improving indoor air quality. It creates a fresher and more comfortable space, making living space more enjoyable year-round. Available in 9,000 to 36,000 BTU options, TOSOT Cosmo mini-split offers a wide range of models to suit different room sizes. Whether for a small bedroom or a large living space, you get efficient cooling and heating tailored to your needs 1. Your order may be shipped in multiple packages or on pallets and arrive at different times. If you’ve received only part of your order, additional boxes may still be on the way. 2. Please ensure that all packages have arrived before scheduling your professional installation appointment. Due to the product's weight, it will be shipped via freight. To ensure smooth delivery, please include a reachable number in case the freight carrier needs to confirm details. 9K BTU Mini-Split AC 115V 9K BTU Mini-Split AC 230V 12K BTU Mini-Split 115V 12K BTU Mini-Split 230V 18K BTU Mini-Split 230V 24K BTU Mini-Split 230V 30K BTU Mini-Split 230V

Brand: TOSOT


Capacity: 1 tons


Cooling Power: 12000 british thermal units


Special Feature: Fast Cooling, Google Assistant,Wifi, Heating & Cooling Function, Inverter Compressor, Remote Controlled See more


Product Dimensions: 14.6"D x 23.2"W x 31.1"H


Start year: 2025


Seasonal Energy Efficiency Ratio (SEER): 19


Color: White


Voltage: 230 volts


Noise Level: 24 db


Cooling Power: 12000 british thermal units


Additional Features: Fast Cooling, Google Assistant,Wifi, Heating & Cooling Function, Inverter Compressor, Remote Controlled


Color: White


Noise: 24 db


Refrigerant: R-32


Inverter Type: Has Inverter


Installation Type: Split System


Compressor Type: rotary_scroll


Outdoor Unit Compatibility: Requires New Outdoor Unit


Air Conditioner Application: Residential


Voltage: 230 volts


Power Source: Corded Electric


Wattage: 2400 watts


Seasonal Energy Efficiency Ratio (SEER): 19


Annual Energy Consumption: 4234 kwh


Capacity: 1 tons


Room Type: Bedroom


Warranty Type: Limited


BEE Star Rating: #N/A


Brand Name: TOSOT


Start Year: 2025


Model Name: GWH12AFCXB-D3DNA2C/I, GWH12QCXB-D3DND4C/O


Model Number: 12,000 BTU Mini-Split Air Conditioner


Included Components: Indoor Air Handler, Outdoor Condenser


UPC: 811820025728


Manufacturer: TOSOT


Item Type Name: Mini-Split Air Conditioner, Wifi Enabled Ductless Inverter Split System AC Unit Heating System, Compatible with Alexa - 19 SEER2 230V


Warranty Description: 5-year warranty


Item Dimensions D x W x H: 14.6"D x 23.2"W x 31.1"H


Item Weight: 64 pounds


Control Method: Voice


Controller Type: Remote Control


Operating Mode: Cooling


Form Factor: Mini-Split


Heating Capacity: 12000 BTU


Number of Heating Elements: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Solid, cost-effective, mini-split that isn't too hard to DIY install
Set name: 9,000 BTU 115V - 20.5 SEER2
I finally finished installing this mini-split in my home (DIY). In hindsight, the installation is not that difficult, but I will caution any ambitious DIY'ers that if you've never installed one before, watch several Youtube videos of people installing similar mini-splits and determine your comfort level doing the install, because the included instructions aren't great. So far, the Tosot unit has been excellent. The indoor unit's fan is very quiet, has maintained a consistent temperature (currently using for heat, but look forward to cooling in the summer). The outdoor condenser unit is also surprisingly quiet. For those that don't know, this is basically a rebranded Gree unit, so it uses the Gree smartphone app which seems to work well (if you choose to connect your unit to WiFi). While I'm thankful it has the onboard temp display that is easy to read on the wall unit, I'm very glad you can easily turn off the LED display using the remote control. Otherwise, it lights up my whole bedroom at night. There are no other obnoxious LEDs on the unit to worry about in a dark room. A few tips for those that plan to DIY this install. You'll need an open-ended torque wrench or crow's feet adapters for a standard torque wrench. I had a hell of a time trying to figure out ahead of time what size crow feet I would need to tighten the nuts on the coolant lines. The instructions have the wrong nut sizes called out in their torque table. I believe I ended up using the 3/4" and 7/8" crow feet, but they don't fit the nuts very well. I think the nuts might be metric. Also, don't forget to purchase the correct R134A adapter to connect your vacuum pump. My three favorite YouTube videos that I referenced for my install were: "Budget Mini Split Installation for Beginners! w/ Vacuum Pump and Gauges" from DIY Solar Power with Will Prowse "DIY Mini Split Install - All the Things Nobody Shows You" from LRN2DIY And watch LRN2DIY's follow up video "DIY Mini Split Install: 3 Regrets After 1 Year of Use" ... show more
Reviewed in the United States on May 1, 2025 by Matt
    • Very impressed
Set name: 34,000 BTU 230V - 21 SEER2
This unit was very nicely packaged and came boxed up and shrink wrapped on a pallet. Installation was very easy and straightforward. After testing out, it cooled my 24x50 shop off very well.
Reviewed in the United States on September 28, 2026 by Chris Wightman
    • Great brand AC
Set name: 34,000 BTU 230V - 21 SEER2
Fast shipping. Installed and it is working great. Great quality unit. Manufacture made great improvements to the units quality, appearance, and build in technologies. Quiet operation of both indoor air handlers and outdoor unit. Great value for money. Cooling and heating performance with high efficiency. Working with different brands and believe that this one is top one for the budget saving category. ... show more
Reviewed in the United States on June 24, 2026 by Andrew L.
    • So far so good.
Set name: 18,000 BTU 230V - 20 SEER2
EDIT 10/8/2025 - We've had this unit for almost 1.5 years now. We live in our RV full time on our property and went through two HOT southern summers and a mild winter with rare snow accumulation that lasted a few days. The minisplit has performed flawlessly. The heat pump works well in our climate and has "kept up" even in the single digits. It does struggle to maintain at those temps but that is expected with a heat pump with no aux heat strips. We have not used the propane furnace at all since we've installed the minisplit. We use the electric fireplace to take the edge off at times but it isn't really necessary unless it's really cold - and it's still more for comfort. We also use a small electric space heater in the back bedroom at night for additional comfort while we sleep. The best part is we have not had to get propane since we installed this minisplit and no more roaring furnace! The temperature stays pretty consistent unlike the gas furnace constantly cycling on and off. Propane is only used for the stove/oven. We've not encountered any condensation leaks or drain problems. But... whenever I install minisplits - I always mount the wall unit slightly tipped towards the drain. It's not enough to see with the naked eye, but enough to see it on the bubble of a level. This helps water drain to where it needs to. 100% happy with this minisplit. Original Review in Aug 2024: I installed this in a 42' destination travel trailer. The two ceiling AC units were fine, but they were very loud so I was looking for something more efficient, quieter, and something with a heat pump in hopes of reducing the use of the propane furnace during the winter. So being it is an RV, installation is pretty much the same. I was lucky enough to run the lineset down an interior wall so I didn't have to drill directly into the exterior wall. I used 25' of lineset so the original 16' wasn't used. The manufacturer was extremely quick to reply to my question regarding how much refrigerant to add to the added lineset length - which is .215oz per foot after doing the metric conversion. The condenser unit came a little dented on the face which looks like the compressor may have bumped the exterior during shipping. It would honestly be more trouble than it's worth trying resolve aesthetic damage through Amazon or the manufacturer. I would have pursued it if there was mechanical damage. You will need a 5/16" adapter to hook up traditional 1/4" gauges/hoses. And of course a good vacuum. I believe I was down to about 220 microns before I called it and that was after two flushes with nitrogen. Unit purrrrs. The condensor is extremely quiet. I do get a little hum or resonance from the inside and it could be because I have it mounted on the paper thin back wall of the RV, or maybe it's slightly out of balance from shipping and denting the side. The wire cage of the condensing unit shakes just a bit when it's running. I don't want to pursue this because I am not 100% sure the shipping damage causes the slight vibration/noise. The indoor evap unit runs so quiet... we love it. We can talk normally and watch TV at ease. The comfort is much, much better. Even with a slight hum from the condenser, it's so much better than the Coleman Mach rooftop AC units that are super loud and blows too hard. The cycling on and off would drive me crazy. This minisplit just purrs - and we love it! I can't comment how the heat works because it's still summer. But I am hoping it will do ok with our mild south-eastern winters. My only complaint or beef is the wiring diagram for the indoor evap unit. It is wrong on page 24 of the manual, as others have pointed out... but nobody stated how to correct it! Should I? Of course! Let me save you a little bit of pain... MIRROR THE WIRING ON THE INSIDE UNIT TO THE OUTDOOR CONDENSER. The diagram for the condenser is correct. Wire the indoor unit the same. So look at the wiring diagram for the outdoor condenser for both. L1 - S - L2 is correct for both. Page 24 says L1 - L2 - S and this is WRONG. I got this unit on Amazon Prime day with 20% off, making it a decent deal for an 18k unit. I am a licensed/EPA certification HVAC guy who's been out of the field for a few years but I still have the know how and tools. Install can be done by anyone with a basic understanding of electrical and refrigeration. DO YOUR VACUUM. I cant stress that enough! And ALWAYS use nitrogen when brazing - but you'll probably using flared connections. Good luck! ... show more
Reviewed in the United States on August 2, 2024 by Tommom
    • Energy-efficient, quiet, and delivers powerful cooling even in extreme heat. Absolutely worth it!
Set name: 9,000 BTU 115V - 20.5 SEER2
This is my third unit. Due to a shipping issue, I only received the outdoor unit initially and the indoor unit was missing. I contacted customer service through the backend, and they quickly arranged for the replacement indoor unit to be sent. I must give a thumbs up to their customer service! I will definitely continue to purchase the TOSOT brand—it’s currently the most reliable choice. ... show more
Reviewed in the United States on June 16, 2026 by WILSON
    • Wiring supplied NOT permitted by NEC Code
Set name: 9,000 BTU 115V - 20.5 SEER2
Beware: Ships with cord that does not meet NEC standard and you'll have to replace. I spent an additional $137 (new cord and another electrical inspection) plus additional time to re-install and connect the new wire from the inside unit to the outdoor unit. As of mid-December, TOSOT is still arguing that their cord does meet code, however, my electrical inspector says it does not, so I had to replace the cord. Longer version: I ordered the TOSOT 9,000 BTU Mini-Split Air Conditioner on August 3, 2025. They ship the system with a flexible cord that runs from the inside unit to the outside unit thru a 2 inch hole you are supposed to drill in the wall to run 2 flexible copper tubings, a drain hose, and a flexible cord. HOWEVER, you aren't allowed to use the flexible cord they provide which is SOW wire. Huh? According to the NEC (National Electrical Code) and my electrical inspector in the State of Washington where I live, they do not allow the cord TOSOT provides to run thru a wall, so I had to replace it and pay for a second visit from the electrical inspector all of which added $137 in additional expenses plus a few extra hours of my time. I am still waiting on TOSOT to make this right, but they insist their provided wiring meets the NEC code. According the NEC 400.12 (2), flexible cables are not permitted where run thru holes in walls. You can do a Google search for "NEC 400.12" and read it for yourself. Summary: I like the unit itself and it is working well, however, be aware this TOSOT unit ships with a flexible connecting cord between the inside and outside unit that will need to be upgraded with wire that can be passed thru a hold in the wall. Be prepared to have to upgrade the wire and do so right away so you'll pass the electrical inspection the 1st time. I am disappointed in TOSOT's customer service as they should have reimbursed me the $137. ... show more
Reviewed in the United States on November 4, 2025 by Janelle
    • Stron
Set name: 30,000 BTU 230V - 22 SEER2
Good Build quality. Easy install. Very efficient and effective cooling my shop. Strong blower motor. Able to feel cool air more than 30 ft from the unit. Had to buy a vacuum pump and gages. But still saved tons of money.
Reviewed in the United States on July 15, 2026 by Ron
    • Nice small a/c system
Set name: 12,000 BTU 230V - 19 SEER2
I like doing projects around the house. But I am in no way a pro. I found this install to be pretty straight forward but challenging. I followed the instructions as best I could. As usual, the instructions leave a lot to be desired. But after watching a few YouTube videos I put the whole thing together without much trouble. I wanted to mount the condenser on the outside wall but was afraid of hearing it rumble. It is so quiet that a wall mount would not have been a problem. The exhaust fan is louder than the compressor. I had an electrician install the disconnect where I needed it. I connected the line set and wiring to the inside unit and pushed them and the drain hose through the 3'' hole I had drilled. My wife stood outside and guided the copper lines while I hung the inside unit on the wall. The instructions said to wrap all the lines together beforehand, but I just did a small section. I figured it would be easier to avoid kinking the lines if they were still separate. I gently pushed and bent the lines toward the path I determined they needed to go. Connected them to the compressor and pulled a vacuum on them. The cheap vacuum pump I ordered from Amazon worked great. I did order adaptors that were advertised to be specifically for a mini split. After removing the pump, releasing the freon and connecting the wiring it was time to test the unit. At first, I was sure there was something wrong. The lights and fan were on, but it didn't seem cold. Before I panicked, I gave it a few minutes, and everything worked perfectly. I am very pleased with this unit. Go slow, read the directions a hundred times and watch YouTube. You can do this. ... show more
Reviewed in the United States on August 20, 2024 by MichaelP

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...