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Keystone 12,000 BTU Window Air Conditioner and Dehumidifier, 115V, Window AC Units for Apartment, Living Room, Garage, and Medium Sized Rooms up to 550 Sq.Ft., Window Unit Air Conditioners with Remote

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Availability: In Stock.
Fulfilled by Sparks_Fly

Arrives Wednesday, May 27
Order within 7 hours and 11 minutes
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Size: 1 Count (Pack of 1)


Style: Cool Only 115V


Color: Bright White


Features

  • Reliable Window AC Units: Our 12,000 BTU window air conditioners are what you need to efficiently cool your apartment, bedroom, garage or any medium sized room up to 550 Sq.Ft.
  • Maximum Comfort: Featuring 3 cooling modes, 3 fan speeds, 4-way adjustable air louvers and timer; Aside from cooling, 2.5 pints of moisture from the air is removed every hour with the built-in dehumidification system
  • Smart Remote Control: The remote takes the temperature of the room you are in, displays it on the LCD screen and sends a signal to your window air conditioner with remote control every 3 minutes for accurate cooling
  • Energy Saving Comfort: Our window unit air conditioners will give your electric bill a break by using the 'Energy Saver' or 'Sleep' mode; These features automatically program your air conditioner window unit to use less energy
  • Space Saving Design: Save your floor space with this air conditioner for windows; Window installation kit included; Min. window height: 15.5"; Width: 23" min, 36" max

Description

Experience reliable and efficient cooling with Keystone's window air conditioner. This 12,000 BTU window AC unit keeps you cool and comfortable, even on the hottest days. It effectively cools rooms up to 550 square feet, making it perfect for small to medium-sized living spaces like apartments, dorm rooms, and sheds. Say goodbye to sticky humidity with up to 2.5 pints of dehumidification per hour, ensuring a comfortable environment. The unique remote comes with a built-in thermostat that senses the temperature of where you are in the room, automatically adjusting to maintain your desired comfort level. Plus, with energy-saving features such as energy saver mode, sleep mode, and a programmable 24-hour timer, you can stay cool while saving on energy costs. Maintenance is a breeze with the Check Filter alert. It lets you know when it's time to clean the mesh filter, ensuring optimal performance and clean air circulation. Keystone not only provides a 1-year warranty for peace of mind but also offers a cost-conscious price, so you can stay cool and comfortable without breaking the bank. Don't settle for discomfort - invest in Keystone's window air conditioning for a cool and comfortable living space all summer long.

Brand: Keystone


Capacity: 2.5 Pints


Cooling Power: 12000 British Thermal Units


Special Feature: Dehumidifier, Filter Light Reminder, Remote Controlled


Product Dimensions: 19"D x 21.5"W x 14.6"H


Start year: 2018


Seasonal Energy Efficiency Ratio (SEER): 12.0


Color: Bright White


Voltage: 115 Volts


Noise Level: 60.5 Decibels


Cooling Power: 12000 British Thermal Units


Additional Features: Dehumidifier, Filter Light Reminder, Remote Controlled


Color: Bright White


Noise: 60.5 Decibels


Refrigerant: R-32


Filter Type: Washable


Inverter Type: No Inverter


Installation Type: Window


Compressor Type: Scroll


Is Outdoor Unit Required: No


Air Conditioner Application: Residential


Core Material: Aluminium Alloy


Voltage: 115 Volts


Power Source: Corded Electric


Wattage: 1000 watts


Is Product Cordless: No


Seasonal Energy Efficiency Ratio (SEER): 12.0


Efficiency: Moderately Efficient


Annual Energy Consumption: 1000 Watts


Air Flow Efficiency: 300 Cubic Feet Per Minute Per Watt


Capacity: 2.5 Pints


Floor Area: 550 Square Feet


Room Type: Bedroom, Living Room


Form Factor: Window


Brand Name: Keystone


Start Year: 2018


Model Name: Keystone Window Air Conditioner


Model Number: KSTAW12CE


Included Components: air conditioner, remote control, 2 AAA batteries, mesh filter, window installation kit, manual, warranty


UPC: 192487238837


Manufacturer: Keystone


Item Type Name: Keystone 12,000 BTU Window Air Conditioner and Dehumidifier, 115V, Window AC Units for Apartment, Living Room, Garage, and Medium Sized Rooms up to 550 Sq.Ft., Window Unit Air Conditioners with Remote


Unit Count: 1.0 Count


Warranty Description: 1, year parts and labor, plus additional 4 years for sealed system


Item Dimensions D x W x H: 19"D x 21.5"W x 14.6"H


Item Weight: 70.8 Pounds


Window Opening Maximum Width: 36 Inches


Window Opening Minimum Height: 15.5 Inches


Window Opening Minimum Width: 23 Inches


Control Method: Remote


Controller Type: Remote Control


Operating Mode: Cooling, Dehumidifying


Warranty Type: Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 27

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Effective for large rooms
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Bright White
Cold ❄️ air very good prices
Reviewed in the United States on April 28, 2026 by Ronnie A.

  • Small Room
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Clean White
Came in working and everything seems good..cools very good...couple dents in the radiator but doesn't effect the ac
Reviewed in the United States on March 17, 2026 by BigYoke

  • .
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Clean White
Works great cools our shed.
Reviewed in the United States on April 2, 2026 by AMPM

  • Updated review..
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Bright White
Update as of 08/04/2024: After owning this for a few months the AC has begun to leak into my bedroom from the front of the AC.. It’s installed properly and just began leaking. I’ve maintained the filter and not sure why this is happening. Of course I don’t have the original box this thing came in because it’s massive.. I can confirm that the condensation line is not clogged and is free of debris.. This unit was boxed and shipped perfectly. It was packed more secure than Fort Knox! Out of the box it was ready to use. Only had to mount the side shutter! It comes with a remote and batteries.. Unit wasn’t as heavy as I thought it would be.. It fit in the window with no issues.. Down to the gritty, the remote had a delay from the button push to the AC, but I don’t mind it serves its purpose! The air flow on low, medium and high are noticeably strong than my previous AC… I have it set on 68 and my room already cooled down, even with the door open.. Noise wise, very quiet.. Shocking because it’s 12,000 BTUs As for cooling, it gets the job done with no issues so far. I’ll update next week because temps are expected to be in the 90s this week.. For $285, you can’t beat that price. You definitely get more bang for your buck with this AC.. ... show more
Reviewed in the United States on June 9, 2024 by John James Mangini

  • Great price!!
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Bright White
This unit was super easy to put in the window!! We use it in our living room. It cools fast, and it’s so quiet that you can still enjoy watching tv with it running! It was definitely worth the cost!! I personally love that it has different temperature settings for different comfort levels! The remote control was also an added bonus!! It looks great, and the water and condensation drain outside! ... show more
Reviewed in the United States on August 28, 2024 by Jacqueline

  • WOW
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Bright White
This unit made a huge difference in temp in my approximately 450 - 500 sq ft room. My room has tons of windows and is the hottest of the rooms upstairs. One con is that it’s so loud but I’ll take it over the heat. I love it and will likely buy another next year for my dining room.
Reviewed in the United States on August 19, 2024 by Ashlee

  • It’s good quality
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Clean White
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Reviewed in the United States on April 14, 2026 by Amazon Customer

  • Easy install and works well
Size: 1 Count (Pack of 1) Style: Cool Only 115V Color: Clean White
Perfect for my son's bedroom in his apartment. Easy to install. A little loud but not overwhelming. Great deal for the price.
Reviewed in the United States on November 13, 2025 by Amazon Customer

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