Keystone 8,000 BTU 115V Through-the-Wall Air Conditioner with 4,200 BTU Supplemental Heat Capability

$559.99 $449.99
Article number: 210000004938
Availability: In stock (1)
Delivery time: 1-4 days in clarksville location

Product Details

The Keystone 8,000 BTU 115V through-the-wall air conditioner with 4,200 BTU Supplemental Heat Capability is perfect for rooms up to 350 square feet. In addition to cooling, this versatile unit also offers supplemental heat capability, providing you with an additional heat source to your main heat source when outdoor temperatures are above 45 degrees Fahrenheit. It has electronic controls with LED display and a temperature sensing LCD remote control allowing you to conveniently see, set and maintain the room temperature from across the room. Money saving features include energy saver mode, sleep mode and a programmable 24-hour timer. Plus, quiet operation (51.8 dB on low) helps you get a good night's sleep. This unit is designed for through-the-wall installation and is not designed for standard window installation (WALL SLEEVE SOLD SEPARATELY).
  • Powerful Cooling: With a 9.6 energy efficiency ratio (EER), this 8,000 BTU through the wall air conditioner can effectively cools small to medium sized rooms up to 350 sq. ft and dehumidifies up to 2.1 pints per hour. Integrated electric heater provides supplemental heating of 4,200 BTUs. Perfect for bedrooms, dens, studies, or home offices. (Product is not suitable for window installation).
  • Smart Remote Control: With a thermostat built into the remote control, it's able to sense the temperature of the room and adjust as needed. The 'Follow Me' remote makes it easier to control the unit from anywhere in the room and its integrated thermostat signals the AC to cool the space based on where you are.
  • Front Access Filter: Let's face it. Filters collect dust. With our front-access design, cleaning that dusty filter is a piece of cake. Simply pull it out, vacuum or rinse and dry, and slide back into place for a reliable clean. An easy clean washable and reusable mesh filter makes maintenance hassle free. The unit will alert you through the Check Filter signal when it is time to clean.
  • Universal Fit: This air conditioner will fit in your existing 24. 5" to 27" durable sleeve. We guarantee it. At 20. 3" D x 24. 2" W x 14. 5" H, we provide the foam seals and installation kit necessary to retrofit your existing sleeve. If you don't have a sleeve, the matching Keystone KSTSLV1 is also available for purchase (sold separately), which allows for an easy, sturdy installation.
  • Custom Cooling: While there are 3 cooling modes and 3 fan speeds pre-programmed, you have flexibility. The Auto option will automatically ramp up and down the fan speed to keep you're pre-set temperature constant. The Energy-saver mode conserves energy and saves you money by turning off the compressor once your desired temperature is reached. This AC unit is ideal for climate control in your home, apartment, bedroom, or living room.
  • Designed for a room up to 350 sq. ft.
  • 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 4-way air flow direction allows you to easily control the direction of the cool air
  • 3 cooling speeds, 3 fan speeds, and 1 heat speed
  • Auto function determines the fan speed depending on the set temperature
  • Programmable 24-hour on/off timer cools on your schedule
  • Energy-saver mode conserves energy and saves you money
  • Sleep mode gradually increases room temperature after being activated
  • Easy-clean mesh filter with check filter alert on the unit
  • U.L. safety listing



Dimensions: H 14.500 in, W 24.200 in, D 20.300 in
Voltage (volts)
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Heater Included
With Heater
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Plug Type
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Remote Control
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Cord Length (ft.)
6 ft6
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Cut-Out Depth (in.) 20.300 in Cut-Out Height (in.) 14.500 in
Cut-Out Width (in.) 24.200 in Product Depth (in.) 20.300 in
Product Height (in.) 14.500 in Product Width (in.) 24.200 in


Air Conditioner Features Timer Air Conditioner Product Type Through the Wall Unit
Air direction/circulation 4-way Amperage (amps) 12
Appliance Category A/Cs and Fans BTU Cooling Rating (ASHRAE) 8000 BTU
BTU Cooling Rating (DOE SACC) 8000 BTU BTU Heat Rating 4200 BTU
Color Family White Combined Energy Efficiency Ratio (CEER) 0
Control Type Remote Control Controls Digital
Cooling Area (Sq. Ft.) 350 Cord Length (ft.) 6
Cord Length (ft.) 6 ft Decibel (Sound) Rating 01-Not Measured
Decibel Rating Not Measured Energy Efficiency Ratio (EER) 0
Filter Type Mesh Heater Included With Heater
Included Remote Control Number of cool settings 3
Number of Fan Speeds 3 Speeds Pack Size 1
Plug Type Perpendicular Product Weight (lb.) 65.00 lb
Returnable 90-Day Voltage (volts) 115
Wattage (watts) 0    

Warranty / Certifications

Certifications and Listings No Certifications or Listings Manufacturer Warranty 1-year parts and labor, plus additional 4 years for sealed system


Additional Resources

From the Manufacturer

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