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Antarctic Star 10,000 BTU U-Shaped Window Air Conditioner Unit Cools up to 450 Sq.Ft. with 6 Modes 24H Timer, Ultra Quiet Window AC Units with Full Window View, Energy Saving, Easy to Install, White

  • Based on 152 reviews
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Availability: Only 1 left in stock, order soon!
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Arrives Thursday, Apr 30
Order within 21 hours and 18 minutes
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Style: 10,000 BTU


Features

  • Space Saving: The U-shape portable design allow you to put it on the window during the hot weather and take it off when you dont want to use it. Portable as well as give you a full window view in summer time.
  • 6 Modes for Choice: Cool, Dry, Fan, Auto, sleep, Energy Saving, meet various occasions need. The temperature can be set between 62F and 86Fwhen the air conditioner is in Cool and Energy Saver mode, which is a good choice for your summer.
  • Efficient Cooling & Free Control: This 10,000 BTU air conditioner can cool up to 450 Sq. Ft area, make you feel comfort at home. A nice window AC for living room, bedroom, kitchen, apartment, dorm, office. It does not only have the LCD control panel, but has a remote control, which let you feel free to control it.
  • Quiet & Energy Saving: Equipped with mytemp sensor, which will auto shut off when it reached the desired temperature. It also has an Energy Saver Modes and a Sleeping Modes, which can limit energy consumption as well as let the noise less than 41db. 1-24h time setting can turn off the A/C at a specific time, saving extra energy.
  • EASY INSTALLATION: Simply slide the air conditioner over the window sill without mounting the bracket, prevent the air conditioner falling out of the window. It fits windows 24 to 48 inches wide and a height clearance of at least 16 inches. The maximum window sill clearance this unit will fit is 11 inches.

Brand: Antarctic Star


Capacity: 60.39 Pounds


Cooling Power: 10000 British Thermal Units


Special Feature: Dehumidifier, Fast Cooling, Remote Controlled, Sleep Mode


Product Dimensions: 28.94"D x 18.7"W x 14.88"H


Start year: 2005


Seasonal Energy Efficiency Ratio (SEER): 12


Color: White


Voltage: 115 Volts


Noise Level: 41 Decibels


Cooling Power: 10000 British Thermal Units


Additional Features: Dehumidifier, Fast Cooling, Remote Controlled, Sleep Mode


Color: White


Noise: 41 Decibels


Refrigerant: R-32


Inverter Type: No Inverter


Installation Type: Window


Compressor Type: rotary_scroll, rotary_vane


Is Outdoor Unit Required: No


Air Conditioner Application: Residential and Commercial


Voltage: 115 Volts


Power Source: Corded Electric


Wattage: 570 watts


Seasonal Energy Efficiency Ratio (SEER): 12


Efficiency: Energy Efficient


Annual Energy Consumption: 600 Watts


Control Method: Push Button, Remote


Controller Type: Remote Control


BEE Star Rating: 4 Star


Warranty Type: Limited


Brand Name: Antarctic Star


Start Year: 2005


Model Name: A5406W-10K


Model Number: NCA-06C/X1E


Global Trade Identification Number: 01


Manufacturer: Antarctic Star


Item Type Name: Window Air Conditioners


Included Components: Window Air Conditioner


Warranty Description: 1 Year Manufacturer


Item Dimensions D x W x H: 28.94"D x 18.7"W x 14.88"H


Item Weight: 60.39 Pounds


Window Opening Maximum Width: 48 Inches


Window Opening Minimum Height: 16 Inches


Window Opening Minimum Width: 24 Inches


Window Opening Maximum Height: 16 Inches


Capacity: 60.39 Pounds


Floor Area: 450 Square Feet


Form Factor: Window, Portable


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

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.

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Top Amazon Reviews


  • Good Product So Far
Style: 12,000 BTU Upgraded
Got this for my tenant. She says it cools her apartment right down, even though it is just undersized for the volume it is cooling. Quiet too. Installed easily. My only complaint was that it got beat up in transit, box was damaged, and the casing that goes outside took a pretty good hit, so it has a few bends in the metal. Because of this, I almost lowered to 4 stars, but it really is shipper that gets the poor grade here, not the manufacturer. I still don’t know what this is going to do to my electric bill, but it claims to be very efficient. Time will tell. ... show more
Reviewed in the United States on June 29, 2025 by Manny

  • Great AC unit and cools everything. Good deal. May not be good for light sleepers.
Style: 12,000 BTU Upgraded
This a great cooling unit and it also looks very nice. It chills the room quickly and the quiet fan is quiet. I think it might be the compressor that makes noise when it hums and vibrates and that is only sound it makes and it can be kind of loud for light sleepers. The remote makes it easy to control from a distance, but the info like temperature or mode might be out of sync when you change settings with the AC buttons instead. The remote display info refreshes after changing anything with the remote. The vent is adjustable. The foam boards and weather strips come included. It works for me and I love it. Had it for a month so far. I thought it was a pretty good deal. I have no information about efficiency, I just wanted an AC unit that didn't cover up all the window and the U shape is good for isolating the condenser outside so it releases the heat more fully outside. I would have preferred that the remote display have a backlight when it is used at night. ... show more
Reviewed in the United States on June 28, 2025 by lumosinthenox

  • Great Window AC Unit that does not block view out of window.
Style: 12,000 BTU Energy Saving
Outstanding performance and operation. Easy to install with assistance of another person as the unit is HEAVY for one person to lift and move around. Very quiet operation and easy to use with the remote or by using the touch panel on the front of the unit. Hardest part of the installation was getting the unit out of the packing material as it was very well packed for shipment. ... show more
Reviewed in the United States on March 31, 2026 by MHK

  • Works well, but complicated to install
Style: 12,000 BTU Upgraded
Does a good job cooling and has quite a few setting that come in handy. However, the main selling point of a window unit that sits low and straddles the window sill isn’t as great as it sounds. It’s also much louder than I expected. Yes, it’s nice not having as much of the window blocked by an AC unit, and you definitely don’t have any worries that it’s going to drop out the window. Those are big benefits. But getting the unit into position and having to piece together weatherstripping/foam board to block window openings was a real headache. The unit also weighs much more than a typical window unit and is harder to navigate since you have to lift over the sill and then drop it down. You also need a big window because you need enough clearance to negotiate the unit through and then down. If low profile and having the AC securely fastened around the sill are priorities, this is a good unit. But for the hassle it took to install, I will go with a regular in-window unit in the future. Also, make sure you measure before you buy. I have what I think is a normal-depth window sill, and the unit barely fit around it. ... show more
Reviewed in the United States on August 8, 2025 by mikeyari

  • Great customer care!
Style: 12,000 BTU Energy Saving
Fits my window perfectly. Very easy to install. Had a minor issue, but Antarctic Star customer service took care of the problem very quickly!
Reviewed in the United States on April 3, 2026 by Louis Brown

  • Disappointing Experience with 12,000 BTU Unit - Issues with Compressor & Customer Service
Style: 12,000 BTU Upgraded
I purchased the upgraded 12,000 BTU unit, and at first, it worked great. However, after some time, I started experiencing significant compressor issues. The unit became very loud and struggled to operate properly. I followed the installation instructions exactly, but now the unit only works in eco mode, and the compressor has trouble fully activating. I contacted customer service, and they informed me that they have no replacement units available, despite the fact that I can still purchase another from the same seller. As a result, I now have to return the unit, which will take over a week for them to receive, and then another week to process the refund. This means I'll be without AC during the end of July and start of August—peak summer heat. Overall, this has not been worth the hassle. The product's performance issues, combined with poor customer service and the long return process, have left me very dissatisfied. ... show more
Reviewed in the United States on July 21, 2025 by Jeremiah R.

  • Cool & quiet
Style: 12,000 BTU Energy Saving
Arrived 3 days earlier than was told. Box and packing not damaged but product was! This tells me it was packaged damaged! Big dent on outside, won't see it but should of been inspected by quality. Overall happy with it, easy to install and you only hear the sound of a fan blowing. It can accommodate a very thick wall, the adjustments come out very far for thinner walls. I bought a bigger BTU than needed, was using a 5,000 BTU and they quit after 5 years, went through 3 of them already, looking to see how long this one will last. ... show more
Reviewed in the United States on August 4, 2025 by Keith Gobell

  • Fairly happy we got it.
Style: 12,000 BTU Upgraded
So far so good. Delivery condition, installation, and current function. We had a standalone and it just couldn't keep up with the temperature shifts. It ended up malfunctioning due to the humitidy in the room. I was fearful this window one would be something like I've seen my parents where they had to put some make shift feet to get it to sit right. Or be noisy. It fit our apartment window and has some rubber feet that assist with it's stability on the outside. Usually have it on low or medium, and it has kept our room comfortably cold. It's usually very swampy warm, so it's a relief after almost 2 years. It's only done a motor gear noise once right after we installed it, and I set it to a lower setting without any issues since. I think it needed a minute to adjust to how much work it needed to do at first. ... show more
Reviewed in the United States on June 13, 2025 by SEler

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