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Internet # 336093638

Model # KSTAT12-1E

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12,000 BTU (DOE) Through-the-Wall Air Conditioner Cools 550 sq. ft. with Remote Control in White

$599.99
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  • Cools rooms up to 550 sq.ft.
  • Dehumidifies air for comfortable living environment
  • Smart remote control with built-in thermostat
  • View More Details

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Product Details

About This Product

Keystone offers reliable air conditioning units that deliver consistent cooling, ensuring your comfort even on the hottest days. Designed for easy through-the-wall installation, this 12,000 BTU through-the-wall air conditioner effectively cools rooms up to 550 sq. ft., while its dehumidification function removes up to 2.5 pt of moisture per hour, reducing humidity levels for a more comfortable living environment. Ideal for medium-sized living spaces like apartments and living rooms, this unit comes with a unique remote control featuring a built-in thermostat. This innovative feature detects your position in the room and adjusts the temperature accordingly, promoting personalized comfort. Save energy and cut down on costs with the unit's energy saver mode, sleep mode, and programmable 24-hour timer. The Check Filter alert will notify you when it's time to clean the mesh filter, ensuring optimal performance. Rest assured that Keystone stands by the quality of their product with a 1-year warranty, offering peace of mind and reliable cooling at an affordable price. Stay cool and comfortable with Keystone's air conditioning units.

Highlights

  • 12,000 BTU air conditioner for through-the-wall installation (not suitable for window installation)
  • Standard, universal interior trim kit for existing wall sleeve included (new wall sleeve sold separately: KSTSLV1)
  • 7 ft. LCDI power cord with NEMA 5-15P plug uses standard 115-Volt electrical outlet
  • Cools a room up to 550 sq. ft. with dehumidification up to 2.5 pt per hour
  • Electronic controls with LED display allows you to easily select options with the touch of a button
  • 3 cooling speeds, 3 fan speeds, plus auto cool for cooling flexibility
  • Return Policy
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Product Information

Internet # 336093638

Model # KSTAT12-1E

Specifications

Dimensions: H 14.53 in, W 24.21 in, D 20.28 in

Dimensions

Cut-Out Depth (in.)

0 in

Cut-Out Height (in.)

0 in

Cut-Out Width (in.)

0 in

Product Depth (in.)

20.28 in

Product Height (in.)

14.53 in

Product Width (in.)

24.21 in

Details

Air Conditioner Features

Filter Light Reminder, Sleep Mode, Timer

Appliance Category

A/Cs and Fans

Appliance Series

Not Applicable

BTU Cooling Rating (ASHRAE)

12000 BTU

BTU Cooling Rating (DOE SACC)

12000 BTU

BTU Heat Rating

No Heat

Color Family

White

Commercial/Residential

Residential

Coverage Area (Sq.Ft)

550 Sq.Ft

Decibel (Sound) Rating

59 dBA

Filter Type

Mesh

Heater Included

Without Heater

Included

Dehumidifier, Remote Control

Number of Cool Settings

3

Number of Fan Speeds

3 Speeds

Plug Type

Perpendicular

Refrigerant Compatibility

R-32

Returnable

7-Day

Voltage (volts)

115

Wattage (watts)

1270

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

1 year limited

Questions & Answers

What does the electrical plug look like
ByOct 8, 2026
1 Answer | 
Answer This Question

This unit comes with a LCDI power cord with a NEMA 5-15P plug.

By|Oct 9, 2026


    will this fit a 28" sleeve?
    ByOct 8, 2026
    1 Answer | 
    Answer This Question

    The dimensions of this product are 20.28" deep by 14.53" high by 24.21" wide.

    By|Oct 8, 2026


      Where to dine an outdoor cover for air conditioner model KSTAT10-1E
      BySep 25, 2026
      0 Answer | 
      Answer This Question

      How many square feet does this unit heat?
      ByAug 29, 2026
      1 Answer | 
      Answer This Question

      Hello, This unit is only equipped for cooling and it can cool up to 550 square feet, it will not heat. Thank you,

      By|Aug 31, 2026


        Is it necessary to buy a sleeve for this unit separately?
        ByAug 4, 2026
        1 Answer | 
        Answer This Question

        Yes, this unit does not come with a wall sleeve, so it is necessary to purchase one separately.

        By|Aug 5, 2026


          This a 220 volts
          ByAug 4, 2026
          1 Answer | 
          Answer This Question

          This unit only requires a 115V outlet.

          By|Aug 4, 2026


            Will the chassis slide out?
            ByJul 29, 2026
            1 Answer | 
            Answer This Question

            This unit does not come with a wall sleeve. It must be purchased separately.

            By|Jul 31, 2026


              How much does this A/C unit weigh?
              ByJul 29, 2026
              1 Answer | 
              Answer This Question

              This unit weighs 63lbs with a shipping weight of 75.29lbs.

              By|Oct 29, 2026

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                Viewing 1-8 of 19

                Customer Reviews

                4.2 out of 5

                • 4.2 out of 26 reviews
                • 67% recommend this product
                Filter by:
                Showing 1-10 of 26 reviews
                No heating / false advertising
                Purchase this item as I was looking for an AC unit with heating so I purchased two of them for a mobile home. Everything said it had heating the entire description. Even the manual steel makes reference to heating settings, but the AC units themselves do not have the heat pump option I’m very disappointed as these already installed. I even went back to check the listing here on Home Depot to make sure that I wasn’t you know missing something but nope it clearly shows that this unit is supposed to have heating.
                by
                Response from Product ExpertJan 28, 2026
                Thank you for your feedback - we apologize for the inconvenience.
                  1 found this review helpful
                  Quiet, efficient on electricity
                  I have been through a couple of thru wall A/C units. This one is actually quiet, perform is outstanding. I love how it senses the Remot's temperature, and runs accordingly. I just hope this thing will handle the 90+ blazing Sun on it. We will see!
                  by
                  Response from Product ExpertAug 29, 2025
                  Thank you for your positive feedback. We are pleased to hear that it met your expectations.
                    1 found this review helpful
                    Good Buy
                    I just replaced this unit, it lasted six years. Lots of salty air in Galveston so I think it did well to hold up.
                    by
                      • Recommended
                      Item was too big for space in wall even those space was pre measured prior to purchase. Item was returned for store credit.
                      by
                      • Verified Purchase
                      This thru the wall A/C unit fit exactly as the dimensions were displayed in the specifications. Fairly quiet and cools down the room quickly and efficiently. Would buy again I the future.
                      by
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
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                      • Verified Purchase
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                      • Verified Purchase
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                      • Verified Purchase
                      Showing 1-10 of 26 reviews

                      Compare Key Features

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                      Product Snapshot

                      Ideal for customers who want powerful 12, 000 BTU cooling, ensuring comfort in rooms up to 550 sq. ft.
                      Ideal for customers who want powerful cooling, ensuring comfort in rooms up to 350 sq. ft.
                      Ideal for homeowners looking for smart cooling, making temperature control effortless with remote and voice assistants.
                      Ideal for customers who want powerful 12, 000 BTU cooling for 550 sq. ft., ensuring personalized comfort and efficiency.

                      Cooling Capacity (BTUs)

                      12, 000 BTU
                      8000 BTU
                      10000
                      12000 BTUs

                      Energy Efficiency Ratio (EER)

                      10.2

                      Coverage Area

                      550 sq. ft.
                      350 sq. ft.
                      450 sq. ft.
                      550 sq. ft.

                      Multiple Cooling and Fan Speeds

                      Programmable Timer