Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner with 10,000 BTU Supplemental Heat Function - White
Customers are saying
Customers have good things to say about the 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner. The air conditioner cools rooms effectively and also functions as a super-efficient heater during the winter. Overall, customers seem to be satisfied with both the cooling and heating performance of this product.
Recommended Room Size
550 square'Cooling Power
Boasting 12,000 BTUs of cooling power, 10,000 BTUs of heating power, and the ability to dehumidify up to 1.73 pints per hour in spaces up to 550 sq. ft., this air conditioner offers versatile comfort. With a Supplemental Heating mode designed for temperatures between 41 and 75 degrees, it serves as a convenient secondary heat source.
Inverter Technology
Enjoy efficient and precise climate control with the elimination of wasted operation through motor speed control, ensuring optimal power usage for consistent room temperatures.
Quieter Operation
Utilizing inverter technology, this unit operates 22% quieter on low and 5% quieter on high settings compared to standard window units, creating a quieter environment for relaxation.
Easy Installation
Designed to fit windows 14.5 inches tall and 24 to 38.5 inches wide, this air conditioner offers easy installation for hassle-free setup.
Washable Filter
Stay informed about filter maintenance with the convenient clean filter alert, ensuring efficient airflow and consistent performance of the unit.
- Recommended Room Size550 square feetBTU Cooling Rating12000 british thermal unitsNumber of Cool Settings1Number of Fan Speeds3Airflow Rate0 cubic feet per minuteRemote ControlYes
Reviews
Rating 5 out of 5 stars with 6 reviews
- Overall Performance (5)
- Heating (3)
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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Stay cool and comfortable in your home with the reliable Keystone window and wall-mounted air conditioner. This modern 12,000 BTU unit effectively cools rooms up to 550 square feet, while the 10,000 BTU heat pump provides additional warmth on chilly days. Utilizing innovative Inverter technology, it optimizes energy usage and operates 41% quieter than standard units. With a remote control, energy saver mode, sleep mode, and a programmable 24-hour timer, this air conditioner offers convenient and money-saving features. The Check Filter alert reminds you to maintain the washable filter for efficient operation. With a 1-year warranty, Keystone ensures you experience consistent cooling and heating at an affordable price. Also featuring supplemental heating mode, this unit is designed to keep you comfortable throughout the year, offering peace of mind and the ultimate in home comfort.

Experience the cutting-edge cooling technology of LG Dual Inverter room window air conditioners. This top-tier window AC unit operates at an ultra-quiet 44 dB in sleep mode, ensuring a peaceful environment comparable to a library. The innovative DUAL Inverter technology not only provides efficient cooling but also saves you up to 15% on energy costs. Take control of your cooling needs from anywhere with LG ThinQ technology, allowing you to use your smartphone or voice control with Amazon Alexa or Hey Google. With 4 cooling and fan speeds, as well as a 24-hour timer, you can create a personalized cooling schedule that suits your preferences. The 4-way air deflection feature ensures that the airflow can be directed precisely where it's needed most, whether for cooling, dehumidifying, or simply circulating air. Even in the event of a power outage, the auto restart feature will automatically turn your AC unit back on once power is restored, ensuring continuous comfort. Additional features include a convenient LCD remote control, an easy window installation kit, a removable and washable filter, and a helpful check filter alert. Upgrade your cooling experience with the LG Dual Inverter window air conditioners, where innovation meets convenience.

GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 12,000 BTU smart window air conditioner cools large rooms up to 550 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.

GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 14,000 BTU smart window air conditioner cools large rooms up to 700 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
| Pros for Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner with 10,000 BTU Supplemental Heat Function - White | |||
|---|---|---|---|
| Overall Performance, Heating | Cooling Performance, Noise Level, Ease of use, Quiet, WiFi | Cooling Performance, Noise Level, Installation Ease, Power, Connectivity | Cooling Performance, Noise Level, Ease of use, Size, BTU |
| Cons for Keystone - 550 Sq. Ft 12,000 BTU Window Mounted Inverter Air Conditioner with 10,000 BTU Supplemental Heat Function - White | |||
| There were no cons for this product— | Size, Weight | Build Quality | There were no cons for this product— |



































































