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KEYSTONE

Keystone 12,000 BTU 230V Window-Wall Air Conditioner & 11,000 BTU Heater with Smart Remote Control, Window AC and Heater with Dehumidifier Function for Medium Sized Rooms up to 550 Sq.Ft.

    • Based on 394 reviews
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Color: White


Size: 12000 BTU


Style: 230V


Features

  • Reliable Heat & Cool: Our powerful 12,000 BTU cooling capacity / 1,000 BTU supplemental heating capacity wall unit can efficiently provide comfort all year long for your living room, garage, bedroom - any large space up to 550 Sq.Ft.
  • All in One Unit: Enjoy powerful cooling, supplemental heating, dehumidification up to 2.5 pints per hour, and fan circulation all in one compact unit with on-board electronic controls, 3 fan speeds, sleep function, and a programmable 24-hour on/off timer
  • Smart Remote Control: The I-Sense remote control takes the temperature of the room you are in, displays it on the remote's LCD screen and sends a signal to your AC unit every 3 minutes for accurate cooling, no matter where you are in your home
  • Powerful Cooling on a Budget: Our AC will give your electric bill a break by using the 'Energy Saver' or Sleep' mode, these smart features automatically program your unit to use less energy while providing the same amount of comfort
  • Space Saving Design: Save your floor space with this window-mounted air conditioner. Window installation kit included. Minimum window height: 16.5 inches, window width dimensions: 26.8" minimum / 36" maximum

Description

With reliable air conditioning, Keystone produces consistent cooling to keep you comfortable, even on the hottest days. Whether installed in a window or through-the-wall, this 12,000 BTU / 11,000 BTU supplemental heating capacity window and wall air conditioning unit 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 smaller-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 the room, displays it on the remote's LCD screen, and sends a signal to your AC unit every 3 minutes for accurate cooling. 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.

Brand: KEYSTONE


Capacity: 2.5 Pints


Cooling Power: 11000 British Thermal Units


Special Feature: Remote Controlled, Dehumidifier


Product Dimensions: 23"D x 22.6"W x 16.1"H


Energy Star: no


Start year: 2018


Seasonal Energy Efficiency Ratio (SEER): 10.9


Color: White


Voltage: 230 Volts


Product Dimensions: 23 x 22.6 x 16.1 inches


Item Weight: 84 pounds


Manufacturer: Keystone


Item model number: KSTHW12A


Specific instructions for use: Cooling, Dehumidifying


Form Factor: Window


Finish types: Powdered


Specifications: UL Listed


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


Batteries required: Yes


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


Capacity: 2.5 Pints


Floor Area: 550 Square Feet


Voltage: 230 Volts


Noise Level: 54.7 dB


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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

    • It works!
My central a/c was not cooling adequately, within 30 minutes, the room was cool, I no longer use the central unit. It's quiet, thermostat works perfectly.
Reviewed in the United States on September 27, 2023 by John W.
    • Heater/A/C
Color: Bright White Size: 23200 BTU Style: 230V
Heater a/c Unit works great
Reviewed in the United States on January 5, 2024 by CJ
    • Good to check it out
I sent it back the heat did not work
Reviewed in the United States on November 20, 2023 by Amazon Customer
    • Staying cool
Purchased this window unit to put in our cabin in the mountains, during the summer months this unit has kept our little cabin comfortable while the temperature outside was in the high 90's. This is an assume unit to own.
Reviewed in the United States on September 4, 2023 by Richard Jennings
    • Great heating and cooling, and more quiet than many other units
The 3 units we ordered arrived with a few scratches to multiple sides, so were not handled well in transit- but that is not a reflection of the manufacturer. Do a great job heating and cooling- strong fan. Would be nice if they came with a flow director attachment that could direct the blowing air upwards or downwards, as needed. We made our own. The installation is far easier if you take the "guts" out of the metal encasement-easily done by removing a few screws, and instructions are clear as to how to do this. Could not find appropriate-sized protective sleeves to fit this unit into- wish that also would have been included or available, just to add another layer of weather protection to the unit. Have only had the 3 units for one summer and a fall season, so will update as we go through the next year. ... show more
Reviewed in the United States on November 8, 2022 by Rachel Trostrud
    • Awesome
Got for my parents...they absolutely love this!!!
Reviewed in the United States on December 17, 2023 by Ayla biaggini
    • highly recommend
works great in our shop and this year its been very hot but this cooled it right done and keeps the temp
Reviewed in the United States on September 16, 2023 by Michael Bass
    • Heat function is NOT "Heat pump"
Just got the 18K model and installed it. I did some things to secure it without drilling into my vinyl window (as they direct), but made it secure. It blows cold air as expected, yet not had a great heat wave yet to really put it to the test. My one gripe is before purchase I ask in Q&A “Is the heat function via heat pump?” which I wanted for the energy saving benefit (having other heating when needed for freezing temps that others ask about). I got “Yes it is heat pump” and the product details of “Supplemental heating when temps out are above 45” hinted such as well (I have used portable AC units with heating that depend on outside temps being above freezing). Yet when sliding out the main assembly from the “sleeve” frame for mounting, I instantly noted a rough wire diagram with heating elements shown that connect directly to 240V power via relay contacts. I unplugged one of those wires to disable the elements and see if it did ANYTHING without them for heating, but it doesn’t (besides blow air with the fan going). So this (like most others with the heating function) gets heat ONLY from heating elements (NO HEAT PUMP feature). Some may think “It’s not their fault you expected something it doesn’t have”, but I did my homework, tried to ask (where they failed to respond), and I don’t understand the advertising “…heating when temps above 45 outside…” statement when outside temps don’t matter with heating elements. So that’s why they lost rating with me (making me decide to return it and get one with the features I wanted). I'm sorry for the hassle to Amazon etc, but hope they'll edit the product details to not hint features it doesn't have. ... show more
Reviewed in the United States on July 23, 2021 by Thomas H. Lawler

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