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Keystone™ 8,000 BTU White Window Mount Air Conditioner

Model #: KSTHW08A
At a Glance
Keystone's budget-friendly heat/cool 115V window/wall air conditioner is designed with a removable chassis so you can install it either in a window or through an exterior wall. Our two-in-one installation marvel includes an adjustable window kit for convenient window installation.
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$99,999.00Save $NaN

Get to know this product.

  • 115-volt/25-amp electrical outlet required
  • 8,000 BTU cooling capacity / 3,500 BTU supplemental heating capacity
  • Supplemental heat capability provides an additional heat source to your main heat source when outdoor temperatures are above 45°F
  • 7-ft. LCDI power cord with NEMA 5-15P plug uses standard 115V electrical outlet
  • Designed for a room up to 350 sq. ft. with dehumidification up to 1.9 pints per hour
  • Indoor Noise Level dBA (Hi/Med/Lo): 57.2 / 54.9 / 53.4
  • 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 for multi-seasonal use
  • Programmable 24-hour on/off timer cools on your schedule
  • Energy Saver function conserves energy and saves you money
  • Sleep function gradually increases room temperature after being activated
  • Easy-clean, tilt-out mesh filter with Check Filter alert on the unit
  • Adjustable, pleated window mounting kit included for window installation
  • Minimum window height: 16.5 inches
  • Window width dimensions: 26.8" minimum / 36" maximum
  • U.L. safety listing (SA12388)


Amps (Cool/Heat)6.4/11.7
Watts (Cool/Heat)734/1220

Misc. Specs

Product Weight (lbs.)75.4
Width (in.)22.6
Appliance ColorWhite
Depth (in.)23
Height (in.)16.1
Control TypeElectronic Buttons
Cord Length (cm)213.36
Manufacturer Warranty1 Year Parts and Labor
Cord Length (in.)84
Plug TypeNEMA 5-15
Color Finish NameWhite
Number Of Cooling Speeds3 (cool) / 1 (heat)
Air Conditioner TypeWindow or Through-the-Wall
Maximum CFM248
Btu Cooling Rating8000
Recommended Room Size350
Btu Heat Rating3500
Shipping Depth (in.)25
Shipping Width (in.)28.4
Shipping Height (in.)16.9
WarningProposition 65 Warning for California Residents