Keystone - 8,000 Window AC, 115V, Inverter, Energy StarWindow A/C - KSTAW08INV
Experience consistent cooling even on the hottest days with Keystone's reliable air conditioning units. The Keystone 8,000 BTU window-mounted air conditioner effectively cools rooms up to 350 sq. ft. and removes up to 1.2 pints of moisture per hour, perfect for medium-sized living spaces like apartments and bedrooms. Featuring special inverter technology, this unit eliminates wasted operation by adjusting motor speed precisely, ensuring desired temperatures efficiently. Enjoy quieter operation with this unit, operating 62% quieter on low and 26% quieter on high than regular window units. With an easy-to-install design and convenient features like energy saver mode, sleep mode, and a programmable 24-hour timer, staying cool and comfortable is effortless. Now available for purchase on Appliance guys.
Features
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Cooling Power: 8,000 BTUs
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Inverter Technology: Ensures precise motor speed adjustment for efficient cooling
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Quieter Operation: Operates 62% quieter on low and 26% quieter on high than regular window units
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Easy Installation: Fits windows 19.5" tall with a minimum width of 23" and maximum width of 36"
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Washable Filter: Features a clean filter alert for easy maintenance
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Energy Efficiency: 27% more energy efficient than average window units
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Remote Control: Allows convenient control from across the room
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Window Dimensions: Fits windows with minimum width of 23", maximum width of 36", and height of 19.5"
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Lifetime Phone Support: Accessible assistance for the lifetime of the appliance.
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Open 7 Days a Week: Customer service available every day for added convenience.
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Price Match Guarantee: Ensures you get the best deal.
Specifications
| BTU Cooling Rating (ASHRAE/DOE SACC) |
8,000 BTU |
| Cooling Area |
350 sq. ft. |
| Energy Efficiency Ratio (EER) |
10.9 |
| Decibel (Sound) Rating |
57 dBA |
| Voltage |
115V |
| Wattage |
1,000 W |
| Window Type |
Sliding |
Dimensions & Weight
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Product Depth: 21.970 inches
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Product Height: 13.460 inches
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Product Width: 19.170 inches
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Product Weight: 53.13 lbs
What our Experts Think
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Efficient Inverter Cooling: Advanced inverter technology modulates compressor speed to match cooling demand, reducing energy waste and running up to ~27 % more efficiently than standard models — a strong SEO match for energy‑efficient window air conditioner.
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Optimal Room Coverage: 8,000 BTU delivers reliable cooling for spaces up to ~350 sq ft — ideal for bedrooms, apartments, and home offices and aligns with compact window AC shopper interests.
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Quieter Operation: Inverter design significantly reduces noise versus non‑inverter window units, supporting high‑intent searches like quiet AC unit.
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Convenient Comfort Features: Includes remote control, energy saver mode, sleep mode, and a programmable 24‑hour timer to simplify use — matching feature‑rich window AC keywords.
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Easy Maintenance: Washable mesh filter with check‑filter alert makes upkeep simple and aligns with low maintenance AC buyer intent.
Q&A
Q: What size room can this AC cool?
A: It’s designed to cool rooms up to ~350 sq ft, suitable for bedrooms, apartments, home offices, and medium living spaces.
Q: What makes the inverter technology beneficial?
A: The inverter compressor adjusts its speed to match cooling demand, leading to quieter operation and up to ~27 % more energy efficiency than standard non‑inverter units.
Q: What power and installation requirements are needed?
A: It runs on a standard 115 V outlet with an LCDI power cord, and fits most standard single/double‑hung windows with a proper installation kit.
Q: What comfort and convenience features are included?
A: Features include energy saver mode, sleep mode, programmable 24‑hour timer, 3 fan speeds, dehumidification up to ~1.2 pints/hr, and an included remote control for easy temperature and setting control.
Q: How quiet is it compared with regular units?
A: The inverter design runs quieter, reducing noise by approximately 62 % on low and 26 % on high compared with comparable non‑inverter models.
Q: Is maintenance easy?
A: Yes. It has a washable mesh filter with a Check Filter alert to remind you to clean for optimal airflow and performance.
Maintenance Tips
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Clean the washable air filter every 30 days to maintain airflow and Energy Star efficiency
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Vacuum or gently brush evaporator and condenser coils seasonally to prevent dust buildup
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Keep rear and side vents clear for optimal airflow
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Ensure proper window installation and sealing to minimize energy loss
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Check and clear drainage openings to prevent water buildup
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Unplug, clean, and cover the unit during off-season to extend lifespan
