
At Keystone, we prioritize your family's comfort. Our heat/cool 230V window air conditioner is designed with versatile supplemental heat when outdoor temperatures exceed 23 degrees Fahrenheit. Please note that this mode is meant to complement your primary heat source and should not be relied upon as the sole heat source. It is important to have a special 230-volt/25-amp electrical outlet for optimal operation, as this unit does not function with standard 115V household outlets. Our window air conditioner is equipped with money-saving features such as an energy saver mode, sleep mode, and a programmable 24-hour timer. With the convenience of our Follow Me LCD remote control, everyone can easily adjust settings and enjoy the blissful comfort provided by our unit. Choose Keystone for the ultimate in comfort and efficiency for your family.
Q: Can this air conditioner be used for both cooling and heating?
A: Yes, this unit offers both cooling and supplemental heating functions.
Q: What is the maximum room size this air conditioner is designed for?
A: This air conditioner is designed for rooms up to 1,000 square feet.
Q: How many fan speeds does the Keystone air conditioner have?
A: This air conditioner has three fan speeds.
Q: Does this air conditioner have a remote control?
A: Yes, this air conditioner comes with a temperature-sensing LCD remote control.
Q: What is the cooling capacity of this Keystone air conditioner?
A: This Keystone air conditioner has a cooling capacity of 18,800/18,400 BTUs.
Q: Does this air conditioner have a timer function?
A: Yes, this air conditioner comes equipped with a timer for added convenience.
Q: What does suplamential heat mean
A: Thank you for your question. Please reach out to Keystone customer support at [email protected] for further assistance.
Q: Is it a standard 220 outlet plug
A: It needs a Nema 6-20 P Plug and special 230v/20 amp outlet. My wall outlet was purchased at Menards.

At Keystone, we prioritize your family's comfort. Our heat/cool 230V window air conditioner is designed with versatile supplemental heat when outdoor temperatures exceed 23 degrees Fahrenheit. Please note that this mode is meant to complement your primary heat source and should not be relied upon as the sole heat source. It is important to have a special 230-volt/25-amp electrical outlet for optimal operation, as this unit does not function with standard 115V household outlets. Our window air conditioner is equipped with money-saving features such as an energy saver mode, sleep mode, and a programmable 24-hour timer. With the convenience of our Follow Me LCD remote control, everyone can easily adjust settings and enjoy the blissful comfort provided by our unit. Choose Keystone for the ultimate in comfort and efficiency for your family.

Elevate your living space with ROVSUN Window Air Conditioner, a versatile and energy saving solution for year-round temperature control. Designed for medium to large-sized rooms, this unit not only cools but also provides heat and dehumidification, ensuring your environment is always just right. With its Wi-Fi enabled features, you can effortlessly control your indoor environment from anywhere using your smartphone.

The Whirlpool 18,000 BTU window air conditioner is easy to install and operate in your home. Designed for cooling and dehumidifying a room up to 1000 square feet, this unit features on-board electronic controls with many options for customized comfort. Three cooling speeds, supplemental heating, Eco mode, and Sleep mode all give you the flexibility you need to keep you and your loved ones cool and comfortable. A 24-hour programmable timer lets you decide exactly when you want cooling so your room will be comfortable by the time you get home from work or school without wasted energy. The included remote control allows you to adjust the settings from across the room. The filter on this window air conditioner helps keep the air free of dust, debris, and contaminants, so it will get dirty. With easy access, the filter can easily be removed and washed to help keep your AC running at its highest level. At Whirlpool, we take comfort and caring to the next level. (Please note: Requires a special 230V electrical outlet)

Upgrade your home with the Keystone 8,000 BTU window air conditioner, the best energy-efficient, quiet, and modern AC unit with remote control and timer for easy installation. This window and wall-mounted AC unit is perfect for large room air conditioners up to 350 sq. ft. Experience efficient cooling with 3 fan speeds, 4-way air direction control, and built-in dehumidification capabilities. Additionally, the coldest AC unit features a washable filter for healthy indoor air quality and an energy saver mode for cost-effective cooling solutions. Stay cool and comfortable in your home this summer with the Keystone window air conditioner.
| Pros for Keystone - 18,800/18,400 BTU 230V Window Air Conditioner with 16,000 BTU Supplemental Heat Capability - White | |||
|---|---|---|---|
| Overall Performance | There were no pros for this product— | There were no pros for this product— | There were no pros for this product— |
Customers are positive about the 18,800/18,400 BTU air conditioner's overall performance. Users report that the air conditioner is working great.
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.
So far the air conditioner is working great, juat in time for a heat wave.. installation was a breeze as we already had the opening in wall from previous ac. Only issue was this unit has wider prings than old unit so hubbie had to run to electrical store to buy new outlet.
CatherineA Posted
I bought this unit mostly for the heater. It blows out hot air and has a powerful fan. It's quite and looks nice. I haven't used the air conditioner yet because I purchased it in late fall this year. It was delivered undamaged and within a week. I'm very pleased.
AlesiaT Posted
This AC is quiet and very cool. Easy to install. Glad we bought it.
Computer Posted