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Internet # 341457764

Model # KSTAW08DE

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8,000 BTU (DOE) 115 Volts Window Air Conditioner Cools 350 sq. ft. with Remote in White

$279.99
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  • 8,000 BTU window-mounted air conditioner
  • Cools rooms up to 350 sq.ft with dehumidification
  • Remote control for temperature sensing and automatic adjustments
  • View More Details

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Product Details

About This Product

Get reliable and efficient cooling with Keystone's window air conditioning. This 8,000 BTU unit effectively cools rooms up to 350 square feet, making it perfect for apartments, dorm rooms, and other small living spaces. It also helps remove excess moisture from the air, with up to 2.1 pints of dehumidification per hour. The unit comes with a unique remote that features a built-in thermostat, sensing the temperature of the room and adjusting automatically. Plus, with energy-saving features like sleep mode, energy saver mode, and a programmable 24-hour timer, you can keep your space comfortable while staying cost-conscious. Maintaining the window air conditioner unit is easy with the Check Filter alert, letting you know when it's time to clean the mesh filter. And with a 1-year warranty, you can trust Keystone to keep you cool and comfortable throughout the summer months. Included installation kit makes installing the unit into your chosen window efficient and easy. Upgrade your home's air conditioning with Keystone, and experience reliable and consistent cooling when you need it most. Don't settle for discomfort during the hottest days of the year - invest in Keystone's window air conditioning and enjoy a cool and comfortable space that you deserve.

Highlights

  • 8,000 BTU air conditioner for window-mounted installation
  • 6.5 ft. LCDI power cord with NEMA 5-15P plug uses standard 115V electrical outlet
  • Cools a room up to 350 sq. ft. with dehumidification up to 2.1 pints per hour
  • Electronic controls with LED display allows you to easily select options with the touch of a button
  • Temperature sensing LCD remote control allows you control the temperature from across the room
  • Auto-restart saves your settings for when power is restored to the unit
  • Adjustable air flow direction allows you to easily control the direction of the cool air
  • 3 cooling speeds and 3 fan speeds for cooling flexibility
  • Minimum window height: 14 in.
  • Window width dimensions: 23 in. minimum / 36 in. maximum
  • Return Policy

Product Information

Internet # 341457764

Model # KSTAW08DE

Specifications

Dimensions: H 13.39 in, W 18.54 in, D 15.75 in

Dimensions

Product Depth (in.)

15.75 in

Product Height (in.)

13.39 in

Product Width (in.)

18.54 in

Window opening maximum height (in.)

14 in

Window opening maximum width (in.)

36 in

Window opening minimum height (in.)

14 in

Window opening minimum width (in.)

23 in

Details

Air Conditioner Features

Filter Light Reminder, Sleep Mode, Timer, Washable Filter

Appliance Category

A/Cs and Fans

Appliance Series

Not Applicable

BTU Cooling Rating (ASHRAE)

8000 BTU

BTU Cooling Rating (DOE SACC)

8000 BTU

BTU Heat Rating

No Heat

Color Family

White

Coverage Area (Sq.Ft)

350 Sq.Ft

Decibel (Sound) Rating

56 dBA

Filter Type

Mesh

Heater Included

Without Heater

Included

Remote Control

Number of Cool Settings

3

Number of Fan Speeds

3 Speeds

Plug Type

Parallel

Refrigerant Compatibility

R-32

Returnable

7-Day

Voltage (volts)

115

Wattage (watts)

666

Window Type

Double Hung, Single Hung

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

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

Questions & Answers

Does this have heat included as well ?
ByOct 20, 2026
1 Answer | 
Answer This Question

This product does not include heat.

By|Oct 20, 2026


    Seer rating
    ByOct 9, 2026
    1 Answer | 
    Answer This Question

    This unit has a CEER rating of 11.8.

    By|Oct 13, 2026


      what is the weight of unit KSTAW18CRon
      BySep 10, 2026
      1 Answer | 
      Answer This Question

      This unit weighs 117.1lbs with a shipping weight of 129lbs.

      By|Sep 11, 2026


        Are all these questions about the unit above, if so why are there people asking about other units?
        ByAug 22, 2026
        0 Answer | 
        Answer This Question

        What is the weight of the KSTAW06DE unit?
        ByAug 22, 2026
        1 Answer | 
        Answer This Question

        Hello, The weight of model KSTAW06DE is 45.1 lbs. Thank you

        By|Aug 23, 2026


          If the unit only draws 4.6 amp as it was stated in one of the comments and the unit has a Nema type 6, 15P which Nema shows 15 amp plug why do we need a 20 Amp Circle breaker
          ByJul 9, 2026
          1 Answer | 
          Answer This Question

          The previous comment was referencing a different model number. This model will not work with a standard 115V outlet -- the NEMA 6-15P plug requires a dedicated 250V circuit for safety purposes.

          By|Jul 9, 2026


            HOW DOES IT DRAIN
            ByJun 28, 2026
            1 Answer | 
            Answer This Question

            Top rail and Sliding Panels at each side are offset to provide the proper pitch to the rear of (5/16"). This is necessary for proper condensed water utilization and drainage. If you are not using the Side Panels for any reason, this pitch to the rear must be maintained.

            By|Jun 30, 2026


              Is it compatible with this outlet?
              ByMay 21, 2026
              0 Answer | 
              Answer This Question

              Viewing 1-8 of 27

              Customer Reviews

              4 out of 5

              • 4 out of 45 reviews
              • 25% recommend this product
              Filter by:
              Showing 1-10 of 45 reviews
              Noisy, difficult controls
              It cools well enough. Two major complaints. 1 - it is so noisy, even on lowest setting. 2 - the controls are completely unintuitive lots of symbols and buttons. Need the manual to understand. I would not purchase again.
              by
                The air conditioner does a good job cooling and dehumidifying small spaces. I use it in an approx. 114 sq foot room. The noise level isn't bad at the lowest fan setting. I found it bothersome for the first few days sleeping with it on, but I got used to it. The bigger issue is the light. Being a day sleeper, I need to block out light and the styrofoam inside the unit allows light to bleed right through. It wouldn't take much for them to put light blocking inside, but I suppose they count on most people to sleep at night. The thermostat also seems to have trouble reading the room temperature correctly. It thinks it's reached the temperature when it's way off. It seems to happen mostly when it's cool outside, so that could be affecting the reading. You can work around the issue by using the "isense" feature of the remote. Instead of the unit reading the room temperature, the remote sends a signal to the AC of the temperature where the remote is located. I recommend purchasing extra foam insulation for use around the unit. It doesn't come with enough. I also purchased 1 inch rigid foam panel insulation to improve the insulation around the unit and block light. It's cheap and you get enough that you can make several mistakes with your cuts and have enough for do-overs.
                by
                Even though it came with a big dent that pressed into the compressor it works. I would have returned it however, the reason i opted for delivery was due to how heavy it is, i have no way to get it back to home depot for return.
                by
                Response from Product ExpertApr 8, 2026
                Thank you for your feedback. We’re sorry to hear about the dent. Please reach out to our customer support team at Keystonecs@keystone-products.com if you need further assistance.
                • Verified Purchase
                PERFECT 5000 BTU for our needs!
                PERFECT 5000 BTU a/c for the kitchen area, which pushes the cold air into the main living area of the house! I don't have to lower the central a/c just to cool off the one place that's always hot! Although the controls aren't described very well in the directions (or on the panel), it's easy to figure out. The panel has symbols instead of "L, M, H", for example. Installation is a little more difficult for us since we don't have "regular" windows, but it's standard like other window units. Also has a heat function, that I tested for a second, and dehumidification. VERY pleased! Tried to upload a video, but program won't let me.
                by
                Response from Product ExpertJul 22, 2025
                Thank you for your positive feedback. We are pleased to hear that it met your expectations.
                  The AC was damaged in shipping I have pictures. But it works.
                  by
                  • Verified Purchase
                  Bought because the older identical one finally gave out ater many years of use. It works identical to m old one so no new learning needed. Also fit perfectly in window.
                  by
                  • Verified Purchase
                  The performance of this AC unit exceeded my expectations. Runs smoothly and quietly, cool all the rooms to a comfortable level. The instillation was fairly easy. On line ordering was easy and arrived without any trouble. Thanks well satisfied.
                  by
                  • Verified Purchase
                  This customer chose to rate the product and not provide text.
                  by
                  • Verified Purchase
                  Installation was straightforward and unit delivers nice cold air. So far, performs nicely.
                  by
                  • Verified Purchase
                  This AC really does what it says. It cools great and even holds up in 96-100 degree heat.
                  by
                  Showing 1-10 of 45 reviews

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                  Product Snapshot

                  Ideal for customers who want powerful cooling and dehumidification, ensuring comfort in rooms up to 350 sq. ft.
                  Ideal for customers who want smart and efficient cooling, ensuring optimal comfort and energy savings. This unit delivers powerful cooling for spaces up to 350 sq. ft.
                  Ideal for customers who want energy-efficient cooling, ensuring lower energy bills and consistent comfort. Great for homeowners looking for quiet operation, making relaxation enjoyable.
                  Ideal for customers who want powerful cooling and programmable comfort, ensuring a cool and refreshed home environment.

                  Cooling Capacity

                  8000 BTU
                  8000 BTU
                  10000 BTU
                  12000 BTU

                  Energy Efficiency Ratio (EER)

                  15
                  0
                  12.1

                  Room Size Coverage

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

                  Adjustable Fan Speeds

                  Smart Home Compatibility