Keystone 18,000 BTU Window Air Conditioner
Keystone 18,000 BTU Window Air Conditioner - Cooling Only is backordered and will ship as soon as it is back in stock.
Manufacturer's Warranty
Manufacturer's Warranty
What's In The Box?
What's In The Box?
Info & Guides
Info & Guides
Keystone 18,000 BTU Window Air Conditioner - Cooling Only is backordered and will ship as soon as it is back in stock.
Description
Description
A big living room, open kitchen, or busy home office can overwhelm a small window air conditioner by mid-afternoon. The Keystone 18,000 BTU Window Air Conditioner line is built for those larger spaces. You can mount it in a single- or double-hung window, or through the wall when no window suits the room. It comes in Cooling Only and With Heat configurations.
The line is useful beyond peak summer, too. On mild spring and fall days, Fan Only mode and the air vent bring fresh air into the room. Energy Saver eases the compressor to cut power use. Sleep mode gradually raises the set temperature by 2 degrees F twice overnight, then returns to your setting after 6 hours.
Key Features and Benefits of the Keystone 18,000 BTU Window Air Conditioner
- Large-Room Cooling: You get 18,000 BTU of cooling capacity for rooms up to 1,000 square feet, so open living areas stay comfortable during heat waves.
- Wide Operating Range: Cooling works in temperatures from 64 to 109 degrees F, so the air conditioner keeps going through the hottest stretches of summer.
- R-32 Refrigerant: The system carries UL certification, so you can be confident it meets recognized safety standards in your home.
- Slide-Out Chassis: With the slide-out chassis, you secure the empty sleeve first and then slide the air conditioner in, without holding its full weight.
- Flexible Fit: It fits single- or double-hung windows 28 to 40.5 inches wide with at least 18.5 inches of opening height, or installs through the wall using the included kit.
- Size and Power: Measures 25.4 x 23.6 x 17.9-Inches (L x W x H) and runs on 208-230 volts, with a 6.5-foot cord that reaches a nearby outlet.
- Dehumidify Mode: This mode removes up to 3.8 pints of moisture per hour, so you can clear out sticky air on humid days (With Heat model KSTHW18A only).
- Sound Levels: It runs at 54 dB on low and 60 dB on high, so you can drop to a quieter fan speed in bedrooms and home offices.
- Follow Me Remote: The full-function remote has a Follow Me feature that reads the temperature where you sit and adjusts cooling to match.
- Electronic Controls: An LED display and 3 fan speeds make it easy to set temperature and airflow, while 4-way airflow control aims air where you need it.
- 24-Hour Timer: You can set it to start or stop up to 24 hours ahead, so the room is cool when you get home without running all day.
- Washable Filter: A washable air filter traps larger dust particles, and a check filter indicator flashes on the control panel when it needs cleaning.
Cooling Only vs With Heat: Choose Your Configuration
You can choose the Cooling Only or With Heat configuration, depending on whether your room needs help just in summer or in the colder months too.
- Cooling Only Model KSTAW18C: It moves up to 360 CFM and has an 11.8 EER, drawing 7.5 amps and 1,500 watts when cooling. That works out to an estimated $149 yearly operating cost, and the air conditioner weighs 102.3 pounds.
- With Heat Model KSTHW18A: It includes 16,000 BTU of electric coil heating at 4,800 watts and 21.8 amps, and heats in temperatures down to 45 degrees F at a single fan speed. It moves up to 760 CFM with a 10.7 EER, draws 8.3 amps and 1,729 watts when cooling, weighs 117.5 pounds, and has an estimated $169 yearly operating cost.
Note: Both models run on 230 volts. The Cooling Only model needs a 20-amp circuit with a NEMA 6-20P plug, while the With Heat model needs a 30-amp circuit with a NEMA 6-30P plug.
Sylvane's Expert Take
If you're cooling a room close to 1,000 square feet, this Keystone line is sized for the job. Pick Cooling Only if central heat already covers your winters, since its higher EER keeps running costs down. Choose With Heat for a room where your furnace falls short in spring and fall.
Check your outlet before you order, because the 2 models use different plugs and circuits. Once that's settled, the slide-out chassis makes a heavy air conditioner much easier to set in place.
Specifications
Specifications
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ASHRAE Cooling Power (BTUs)1800018800
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Energy Efficiency Ratio (EER)11.810.7
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Number of Speeds3
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Window Installation TypeSingle/Double Hung
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CertificationsUL
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Chassis TypeSlide-Out
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Circuit Breaker Rating250V-20A
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ColorWhite
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ControlsElectronic
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Estimated Yearly Operating Cost149169
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Heat ModeNoYes
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Heater TypeElectric Coil
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Heating BTUs (BTUs)16000
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Maximum Cubic Feet per Minute (CFM) (CFM)360.0760.0
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Maximum Noise Level (dB)60
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Maximum Operating Temperature - Cooling (degrees F)109
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Minimum Noise Level (dB)54
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Minimum Operating Temperature - Cooling (degrees F)64
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Minimum Operating Temperature - Heating (degrees F)45
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Moisture Removal per Hour (pints)3.23.8
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Recommended Coverage Area (sq. ft.)1000
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Refrigerant TypeR-32
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California Residents⚠ WARNING: Cancer and Reproductive Harm. For more information go to www.p65warnings.ca.gov.
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Maximum Cooling Amperage (Amps)7.58.3
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Maximum Cooling Wattage (W)15001729
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Maximum Heating Amperage (Amps)21.8
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Maximum Heating Wattage (W)4800
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Plug Face Type6-20P
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Power Cord Length (ft.)6.5
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Voltage (V)208-230
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Depth (in.)25.4
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Height (in.)17.9
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Maximum Window Width (in)40.5
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Minimum Window Height (in.)18.50
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Minimum Window Width (in)28.0
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Weight (lbs.)102.3117.5
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Width (in.)23.6
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Additional FeaturesProgrammable Timer, Remote Control, Installation Kit Included, Air Filter, Sleep Mode, Auto-RestartProgrammable Timer, Remote Control, Installation Kit Included, Air Filter, Dehumidifier Mode, Sleep Mode, Auto-Restart
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Manufacturer's Warranty1-Year Warranty











