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Keystone

Keystone 12,000 BTU Wall Mounted AC Unit and Dehumidifier, 230V, Wall Unit for Bedroom, Bathroom, Nursery, and Medium Sized Rooms up to 550 Sq.Ft., AC Wall Unit with Remote, Quiet, High Efficiency AC

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Availability: Only 5 left in stock, order soon!
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Arrives Friday, Mar 27
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Size: 12000 BTU


Style: Cool Only 230V


Color: Bright White


Features

  • Reliable AC Wall Unit: Our powerful 12,000 BTU wall mounted ac unit is what you need to efficiently cool your apartment, bedroom, bathroom, or any small to medium sized living space up to 550 Sq.Ft.
  • Maximum Comfort: Featuring 3 cooling modes, 3 fan speeds, 4-way adjustable air louvers and a programmable timer; Aside from cooling, 2.5 pints of moisture from the air is removed every hour with the built-in dehumidification system
  • Space Saving Design: Keep your window view and floor space with this wall air conditioner; Easy installation with standard universal interior trim kit
  • Smart Remote Control: The remote control takes the temperature of the room you are in, displays it on the LCD screen and sends a signal to your wall unit ac every 3 minutes for accurate cooling
  • Powerful Cooling on a Budget: Our High Efficiency wall unit air conditioner will give your electric bill a break by using the 'Energy Saver' or Sleep' mode; These features automatically program your unit to use less energy

Description

Keystone is committed to delivering reliable air conditioning units that provide consistent cooling, ensuring your comfort even on scorching hot days. The 12,000 BTU through-the-wall air conditioner is easily installed through- the-wall, delivering effective cooling for rooms up to 550 square feet. Additionally, the unit's dehumidification capability removes up to 2.5 pints of moisture per hour, creating a more comfortable and pleasant environment. Ideal for medium-sized living spaces like apartments, living rooms, and more, this unit features a unique remote control with a built-in thermostat. The thermostat intelligently detects your position in the room and adjusts the temperature accordingly, providing personalized comfort and energy efficiency. In addition to the innovative remote control, the air conditioner includes money-saving features such as an energy saver mode, sleep mode, and a programmable 24-hour timer. These features help optimize energy usage and reduce electricity costs. The unit also includes a convenient Check Filter alert that notifies you when it's time to clean the easily removable mesh filter. Regular maintenance ensures optimal performance and clean air circulation. Please note that this unit requires a special 230-volt/20-amp electrical outlet and cannot be operated using a standard 115V household electrical outlet.

Brand: Keystone


Capacity: 2.5 Pints


Cooling Power: 12000 British Thermal Units


Special Feature: Remote Controlled


Product Dimensions: 20.3"D x 24.2"W x 14.5"H


Start year: 2023


Seasonal Energy Efficiency Ratio (SEER): 10.5


Color: Bright White


Voltage: 230 Volts


Noise Level: 56.5 Decibels


Manufacturer: ‎Keystone


Part Number: ‎KSTAT12-2D


Item Weight: ‎78.1 pounds


Product Dimensions: ‎20.3 x 24.2 x 14.5 inches


Item model number: ‎KSTAT12-2D


Size: ‎12000 BTU


Color: ‎Bright White


Style: ‎Cool Only 230V


Material: ‎Plastic


Power Source: ‎Corded Electric


Voltage: ‎230 Volts


Wattage: ‎1142 watts


Installation Method: ‎Wall


Item Package Quantity: ‎1


Sound Level: ‎56.5 Decibels


Coverage: ‎550 sq. ft.


Mounting Type: ‎TTW


Certification: ‎Energy Star


Special Features: ‎Remote Controlled


Usage: ‎Indoor Cooling


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


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


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


Capacity: ‎2.5 Pints


Floor Area: ‎550 Square Feet


Date First Available: May 22, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 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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Top Amazon Reviews

    • All Around-Fantastic Unit
Size: 12000 BTU Style: Wall Sleeve Color: White
Review Image by Kringle1 Kringle1
Review Image by Kringle1 Kringle1
Review Image by Kringle1 Kringle1
Review Image by Kringle1 Kringle1
Review Image by Kringle1 Kringle1
Review Image by Kringle1 Kringle1
Purchased the 12k BTU 230v 6-15 plug unit almost 1month ago (May 30, 2020). It arrived in about one week. Delivered via UPS, although they left it downstairs in foyer of my condo building, i’m only 2 sets of steps up. W/ my neighbors assistance, the 2 of us had no problems. It was packed brilliantly, w/ 4 white plastic strap thingies wrapped around entire package, tightly, strong enough to use as handles, taking my time, slid it right up the stairs. (I’m giving this info, to let ppl know of the delivery exp) sure beats me having to have gone to any store, & the (hassle of both Covid-19, & sales ppl). I already had a sleeve, this fits perfectly,w/ a tad bit of space to spare, & i used some foam supplied in generous amount btw., to fill in the space. The snap-together 4 piece frame finished off the look. Also came w/ a rear guard, which i took off the old rusty junky one, from about 25+ years & it easily screws in w/ 2-4 screws. The packing & everything was in mint condition. (i’ve tons of diff sized pieces of soft and hard foam pieces left over) i just put them away for rainy day purposes/uses. Now..as far as the operation: It works brilliantly. Cools very nicely. Easy to use. Plenty of features. Remote is great! This unit has a timer function, sleep function, & the ‘follow me’ feature on the remote is a nice touch, when u press it, it’ll display the temp on the remote(in cool mode only) of the location of the remote/which obviously is mostly always in the same room! The remote has a nice orange backlit led display. Energy Save function works great! The overall sound is not too bad, more/less like most large in wall sleeve units. I’m not exactly a ‘decible numbers expert’ but, I’m not bothered by a/c noise. So....Compared to my utter NIGHTMARE experience from 2016-2019 w/ THREE diff Frigidaires in a row!! I am SERIOUS. 1 after the other, starting w. the first replacement in 2016 of the original a/c that was in my condo when i moved in 15 years ago. Within just over a year give or take, they-each one, would slowly start malfunctioning, & totally take a nose dive. And even springing for the extra warranty, that too was a COMPLETE NIGHTMARE. I was not about to buy a 4th one from my local Mom/Pop appliance place, who never had a straight answer, nor offered real assistance, just took my $$$, and they only sold that one lone brand-Frigidaire.. LESSON LEARNED the hard way!! The Keystone brand off the bat works like a dream, not just in contrast to my bad experience w/ Frigid., but i really love this a/c & it’s many great features and functions. I posted about 6 pics, including the front/back of the 6-15 plug, hope that helps. For me the price was right also- for a 12,000 btu, @$595-delivered to my door. As opposed to upwards of $700-$800 or more for 12K btu & larger ones, in stores. Best of luck & stay cool, healthy & safe! Chris-NY ... show more
Reviewed in the United States on June 20, 2020 by Kringle1 Kringle1
    • Heat and cool 😎 amazing
Size: 14000 BTU Style: Heat/Cool 230V Color: Bright White
Perfect for my garage and shed . I bought 2 of these, one last winter for a shed build. It worked so good. I got a second in spring for my garage. Heat is electric resistance at 3450 watts. 220 volt. And ac In this unit 14k btus. Both run perfect. Low noise on low fan. Operation in heat mode fan stops when heat stops. Operation in ac mode fan stops when ac stops with option to keep fan on as well after ac stops. Wish fan would keep going after heat stops though to reduce cooler spots on floor. But hey. Overall its a 5 star product. ... show more
Reviewed in the United States on August 24, 2025 by Amazon Customer
    • Didn’t cool from Day 1. We’re returning it on Day 2.
Size: 12000 BTU Style: Heat/Cool 230V Color: Bright White
ZERO ability to cool, and that’s for a brand new unit right out of the box. After a pretty easy installation for this through-the-wall unit, it turned on, remote and fan worked fine. But cool air never came out, even after several hours. The reassuring, low bass sound of a working compressor that normally precedes a refreshing blast of cold air was ne’er to be heard! To address this, we turned to the troubleshooting tips in the Keystone users manual (only two pages out of thirty). Sure enough, a listed problem was open “air unit does not feel cold enough.” However, none of the listed correction methods helped: (1) the temperature sensor behind the air filter element could have been touching the cold coil; but we checked, and it wasn’t; (2) setting unit to a lower temperature was also recommended; but when we set it to the minimum of 62° F the room temperature of 80°+ did not fall a single degree over several hours; and, (3) the compressor could have stopped while changing modes and we were asked to wait three minutes after setting to the COOL mode; but we let it run for hours after shifting to cool, yet no cooling ever arrived. Spending an weekend with three overnight guests was uncomfortable as you might imagine. Let’s just say we’re not the happiest of buyers right now. Upon calling Amazon, we learned that for our particular situation, replacement was not possible, but refund was. Consequently, we’ve removed this defective Keystone unit from its sleeve, box it, and are now awaiting UPS arrival to rid of its being! Thankfully, there will not be a delivery charge for the return. That’s quite good because the unit weighs about 80 pounds. Dropping it off at a UPS store would have been pretty difficult. We are replacing it with 14,000 BTU Frigidaire through-the-wall unit which actually cost less and weighs only 50 pounds, making installation even easier. (The previous Frigidaire, which we tried to replace with the Keystone had stopped working nine years after its manufacture in 2015.) This experience made us realize that maybe nine years is a pretty good life for ACs, which seem to have more variability than one might expect. Will be happy to get another nine years out of the new Frigidaire we are ordering. Wish us luck! ... show more
Reviewed in the United States on July 14, 2024 by dharmadawg

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