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Keystone 12,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control - Window AC Unit for Apartment, Living Room, Garage & Medium Sized Rooms up to 550 Sq.Ft.

4.4 4.4 out of 5 stars 2,588 ratings

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Eligible for Return, Refund or Replacement within 30 days of receipt
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Eligible for Return, Refund or Replacement within 30 days of receipt
  • This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
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12000 BTU
High Efficiency

Purchase options and add-ons


About this item

  • Sold as 1 Each.
  • 12,000 BTU air conditioner for window-mounted installation.
  • 6.5-ft. LCDI power cord with NEMA 5-15P plug uses standard 115V electrical outlet. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov..
  • Cools a room up to 550 sq. ft. with dehumidification up to 2.5 pints per hour.
  • Electronic controls with LED display allows you to easily select options with the touch of a button.

Customer ratings by feature

Remote Control
4.2 4.2
Energy efficiency
4.1 4.1
Easy to install
4.1 4.1
Value for money
3.9 3.9

Frequently bought together

$389.99
Get it as soon as Wednesday, Mar 27
Available to ship in 1-2 days
Ships from and sold by Amazon.com.
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Keystone 12,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control - Window AC Unit for Apartment, Living Room, Garage & Medium Sized Rooms up to 550 Sq.Ft.
KEYSTONE Keystone 12,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control - Window AC Unit for Apartment, Living Room, Garage & Medium Sized Rooms up to 550 Sq.Ft.
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Price-13% $389.99
List:$449.99
$379.00$749.99-8% $485.80
List:$529.00
$499.00$359.99
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Friday, Mar 29
Get it as soon as Wednesday, Mar 27
Get it as soon as Thursday, Mar 28
Get it Mar 28 - Apr 1
Customer Ratings
Remote Control
4.2
4.0
3.8
4.0
4.2
4.5
Energy efficiency
4.1
4.2
3.6
3.7
3.7
4.2
Noise level
3.7
3.5
3.3
3.8
4.1
4.0
Easy to install
4.1
3.5
3.8
4.5
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
MAGshion
cooling power
12000 btus
10000 btus
23200 btus
14000 btus
12000 btus
12000 btus
floor area
550 square feet
450 square feet
1500 square feet
800 square feet
550 square feet
450 square feet
control method
remote
voice
touch
voice
voice
remote
power source
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
number of speeds
3
3
3
3
3
3
special feature
No Additional Features
WiFi Enabled, Remote Controlled, Dust Filter, Filter Light Reminder, Dehumidifier
Heating And Cooling Function, Remote Controlled, Dehumidifier, Filter Light Reminder, 4 Way Swing
WiFi Enabled, Remote Controlled, Dust Filter, Filter Light Reminder, Dehumidifier
Heating And Cooling Function, Inverter Compressor, Dehumidifier, WiFi Enabled, Remote Controlled
Washable Filter, Remote Control, 6 Mode Options, Programmable Timer
energy star
1 Star
Energy Star

From the brand


From the manufacturer

keystone window ac

keystone window ac

keystone window ac

keystone window ac

INSTALLATION KIT INCLUDED

Window installation kit comes with the unit for easy setup

QUICKLY COOL YOUR HOME

A reliable choice with a built-in dehumidifier for apartments, bedrooms, living rooms, home offices, or attics.

LED DISPLAY

Allows you to easily select options with the touch of a button

keystone window ac

MONEY SAVING FEATURES

These units include energy saver mode, sleep mode, and a programmable 24-hour timer. Auto-restart saves your settings for when power is restored to the unit

keystone window ac keystone window ac keystone window ac keystone window ac keystone window ac
KSTAW05CE KSTAW06CE KSTAW08CE KSTAW10CE KSTAW12CE
Customer Reviews
4.4 out of 5 stars
2,588
4.5 out of 5 stars
145
4.4 out of 5 stars
2,588
4.4 out of 5 stars
2,588
4.4 out of 5 stars
2,588
BTU Capacity 5,000 BTU 6,000 BTU 8,000 BTU 10,000 BTU 12,000 BTU
Input 410 Watts 490 Watts 666 Watts 833 Watts 1000 Watts
Current 3.8 Amps 4.5 Amps 5.9 Amps 7.5 Amps 8.7 Amps
EER 12.2 12.2 12.0 12.0 12.0
Moisture Removal 1.3 pints/hr 1.5 pints/hr 2.1 pints/hr 2.3 pints/hr 2.5 pints/hr
Indoor dBA (Hi/Med/Low) 56.5 / 53.9 / 50.5 56.4 / 54.1 /51.9 60.4 / 58.5 / 56 ___/ 59.5 / ___ 60.5 / 59.3 / 57.7
Cooling Range 62°F ~ 90°F 62°F ~ 90°F 62°F ~ 90°F 62°F ~ 90°F 62°F ~ 90°F
Cooling/Fan Speeds 3/3 3/3 3/3 3/3 3/3
Voltage 115V 115V 115V 115V 115V

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Keystone

Keystone 12,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control - Window AC Unit for Apartment, Living Room, Garage & Medium Sized Rooms up to 550 Sq.Ft.


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Product Description

With reliable, window-mounted air conditioning, Keystone produces consistent cooling to keep you comfortable, even on the hottest days. This 12,000 BTU window-mounted air conditioner can effectively cool rooms up to 550 square feet with dehumidification up to 2.5 pints per hour to remove moisture from the air. Perfect for small to medium sized living spaces like apartments, dorm rooms, sheds, and much more. The unit features a unique remote with a thermostat built in to sense the temperature of where you are in the room and adjusts as needed automatically. Money saving features include energy saver mode, sleep mode, and a programmable 24-hour timer. You'll know when it's time to easily remove and clean the mesh filter with the Check Filter alert. Keystone not only provides a 1-year warranty but ensures that you stay cool and comfortable at a cost-conscious price.

Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,588 global ratings

Customers say

Customers like the quality and ease of installation of the air conditioner. For example, they mention that it works well, and is easy to install. Some appreciate the value, and remote control. That said, opinions are mixed on temperature, noise, and size.

AI-generated from the text of customer reviews

144 customers mention102 positive42 negative

Customers like the quality of the air conditioner. They mention that it works well, the dehumidifier function also seems to work well, and the remote works well. Some appreciate the useful features and the digital screen. Overall, most are happy with their purchase and recommend it to others.

"...The dehumidifier function also seems to work very well (even though we have a whole home dehumidifier in the main part of our home) in the extended..." Read more

"This window unit works amazingly, blows perfectly, keeps the room really nice and cool almost like an..." Read more

"Remote use is a little clunky (I didn't read the remote instructions and that probably would have helped)...." Read more

"The size and finish is clean and bright.INSTALLING is actually easy, but the long-winded manual could lead you to believe it’s complex...." Read more

113 customers mention79 positive34 negative

Customers are mixed about the temperature of the air conditioner. Some mention that it blows very cold air and should chill an area much larger than it's intended for, while others say that it struggles to cool below a certain point and has no heat built in.

"New AC works fine and cools efficiently as intended...." Read more

"...NOISE: high fan is pretty loud. Low fan is pretty soft. It’s a loud WOOSHING sound, not a loud “machine” sound...." Read more

"...Made my room INCREDIBLY hot because of the accordion piece, felt like a Sauna in my room...." Read more

"...The unit cranks cool air so fast I don’t think the material matters that much unless maybe you’re looking to keep the unit for a lifetime...." Read more

45 customers mention34 positive11 negative

Customers find the installation process of the air conditioner to be fairly easy. They mention that it comes with an L bracket, is powerful, quiet, and light to install. Some say that the air conditioning unit cools great and is easy to operate.

"...Easy to operate and was easy to install. 10/10" Read more

"...only moderately heavy so lifting it to the window by yourself is pretty easy, depending on your strength.NOISE: high fan is pretty loud...." Read more

"...It was fairly easy to install, and I really like that it came with an L bracket to keep the window to down..." Read more

"...Took about 40 mins to install, then the air would not blow out further than about an inch...." Read more

38 customers mention35 positive3 negative

Customers appreciate the value of the air conditioner. They say it's a good inexpensive air conditioner that works well for the price.

"...Was able to finance through Amazon. Made the cost very affordable. Thanks" Read more

"...Great Product andValue priced @ $159.99 each.Very fast delivery 3 days early." Read more

"Titles says it all!! Easy install, good price, keeps my bedroom cold but its loud" Read more

"...But it gets the job done, and the price is a bargain for what you get." Read more

19 customers mention19 positive0 negative

Customers find the remote control of the air conditioner convenient, handy, and rewarding. They say the amount of control from the remote is good for a unit in this price range, and the remote and timer feature is pretty good. Customers also mention that the remote works great and has different modes.

"...The remote is also a really nice bonus so I can control it from my bed...." Read more

"remote control was basis for this purchase and amount of control from the remote is rewarding, can do it all!..." Read more

"...Remote control was great and it took less than half second for the a/c unit to responded after remote buttons was pressed it deserved 5 stars..." Read more

"...It is not any noisier than other window ACs, plus the remote is handy. If I misplace the remote, I can still completely control the unit's features." Read more

97 customers mention51 positive46 negative

Customers are mixed about the noise of the air conditioner. Some mention that it's very quiet and light to install, while others say that it is loud and the styrofoam inside amplifies the unit's noise. Some customers also say that the compressor makes odd sounds when it turns on. Overall, the opinions are mixed and there is no marginal improvement in the noise level.

"...No random noises or abrupt stops (unless in energy save mode where it will turn off and on every so often).Great purchase...." Read more

"...The unit is a bit noisier than expected, but not so much as to be a hindrance!..." Read more

"...and is very quiet despite other user reviews. will purchase again if needed." Read more

"...NOISE: high fan is pretty loud. Low fan is pretty soft. It’s a loud WOOSHING sound, not a loud “machine” sound...." Read more

30 customers mention15 positive15 negative

Customers are mixed about the size of the air conditioner. Some mention that it's perfect for a small window, while others say that it was too large for their window.

"...It’s small and only moderately heavy so lifting it to the window by yourself is pretty easy, depending on your strength...." Read more

"...It is important to note that the width in the image is wrong. It is NOT 15” wide. It is 16” just like the depth...." Read more

"we really love it. it fit like a glove in our motorhome, and the fact that the hot air that comes out..." Read more

"...That was the reason it wouldn't fit...." Read more

43 customers mention4 positive39 negative

Customers are dissatisfied with the sturdiness of the air conditioner. They mention that it arrived damaged, banged up, and missing screws. Some say that the side panels are broken and the rack was bent. The outer shell has a ding on the left side, and there was a tear in the accordion extension.

"The product came in a box with no bottom, unit was extremely damaged...." Read more

"...Both units arrived with visual damage. The first looked like it was dropped in the manufacturing process...." Read more

"...When we opened the box the casing was dented which is a huge concern, the additional warranty might not cover it since if the probably dropping of..." Read more

"...The little lines on the grill were all crooked where they had been smashed. When I bought this item it was non-returnable from the seller...." Read more

Works amazing
5 Stars
Works amazing
This window unit works amazingly, blows perfectly, keeps the room really nice and cool almost like an Icebox. Easy to operate and was easy to install. 10/10
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Top reviews from the United States

Reviewed in the United States on September 14, 2023
Size: 25000 BTUStyle: High EfficiencyVerified Purchase
One person found this helpful
Report
Reviewed in the United States on February 18, 2024
Size: 1 Count (Pack of 1)Style: StandardVerified Purchase
Customer image
5.0 out of 5 stars Works amazing
Reviewed in the United States on February 18, 2024
This window unit works amazingly, blows perfectly, keeps the room really nice and cool almost like an Icebox. Easy to operate and was easy to install. 10/10
Images in this review
Customer image Customer image
Customer imageCustomer image
2 people found this helpful
Report
Reviewed in the United States on July 8, 2022
Size: 5000 BTUStyle: StandardVerified Purchase
25 people found this helpful
Report
Reviewed in the United States on March 20, 2024
Size: 12000 BTUStyle: High EfficiencyVerified Purchase
Reviewed in the United States on September 12, 2020
Size: 5000 BTUStyle: StandardVerified Purchase
Customer image
5.0 out of 5 stars Powerful Mid-grade A/C
Reviewed in the United States on September 12, 2020
Let me start by saying that I compared window A/C units for nearly a week before finally pulling the trigger on this one (KSTAW05BE) I’ve now owned this model for an entire summer and am very satisfied.

I have a medium sized room on the top floor of the house. Over the summer I would leave the A/C running several hours of the day (my bedroom is also my office) and it never let me down. The energy save feature is nice for that reason so that it isn’t using constant electricity.

The remote is also a really nice bonus so I can control it from my bed.

One concern of mine when selecting a unit was the styromfoam that some units have on the inside. I didn’t know this one had that, so I was a little disappointed at first. But after having it all summer I can honestly say it didn’t make a difference. The unit cranks cool air so fast I don’t think the material matters that much unless maybe you’re looking to keep the unit for a lifetime. For me and my needs it works perfectly.

Overall I thought the bang for the buck was the best for this unit. I wanted something midgrade - not too fancy but not one that I would have to replace next year. My largest concern was noise. I expect some noise from the airflow but I had read some reviews of other units talking about random ear-piercing buzzing sounds or really loud beeping. This unit beeps when you press the buttons and when turning off and on but that is all. No random noises or abrupt stops (unless in energy save mode where it will turn off and on every so often).

Great purchase. Extremely satisfied. 10/10.
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Customer imageCustomer imageCustomer imageCustomer image
115 people found this helpful
Report
Reviewed in the United States on July 3, 2022
Size: 5000 BTUStyle: StandardVerified Purchase
4 people found this helpful
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Reviewed in the United States on September 10, 2023
Size: 5000 BTUStyle: StandardVerified Purchase
Customer image
1.0 out of 5 stars Came in damaged, leaked water everywhere, didn’t blow any air
Reviewed in the United States on September 10, 2023
The product came in a box with no bottom, unit was extremely damaged. It was open in the bottom with just foam under the unit, wrapped with plastic ties to keep it together. Made my room INCREDIBLY hot because of the accordion piece, felt like a Sauna in my room. Took about 40 mins to install, then the air would not blow out further than about an inch. Had to pay an extra 10 dollars for a box just to return this thing since the box that it was sent in was messed up. DO NOT RECOMMEND.
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image
Reviewed in the United States on November 8, 2023
Size: 25000 BTUStyle: High EfficiencyVerified Purchase
One person found this helpful
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Top reviews from other countries

Jean Corriveau
4.0 out of 5 stars More efficient and less noisy
Reviewed in Canada on June 8, 2023
Size: 5000 BTUStyle: High EfficiencyVerified Purchase