
- Model:KSTHW18B SKU:6587483
- Product Name: Keystone – 18,800/18,400 BTU 1,000 Sq. Ft. Window/Wall Air Conditioner with Supplemental Heat Capability – White
- Discount Price Link: https://www.blazinglydiscounts.com/products/Keystone-%252d-18%2C800%7B47%7D18%2C400-BTU-1%2C000-Sq.-Ft.-Window%7B47%7DWall-Air-Conditioner-with-Supplemental-Heat-Capability-%252d-White.html

I recently installed the Keystone 18,800/18,400 BTU Window/Wall Air Conditioner in my 1,000 sq. ft. living area, and it’s been a game-changer! This unit cools the entire space quickly, even during the hottest summer days, and maintains a comfortable temperature throughout the room. The cooling power is impressive, and it handles my large open space effortlessly.
What I really love about this air conditioner is the supplemental heat feature. During the colder months, it’s perfect for taking the chill out of the air without needing to fire up the central heating. It keeps my home cozy and saves energy, which is a nice bonus. The transition between cooling and heating is smooth, and it adjusts the temperature quickly.
The unit is relatively quiet for its size, with a gentle hum that doesn’t disrupt daily activities or sleep. Installation was easy, and it fits perfectly in my window, though I also love that it can be used as a wall unit if needed. The sleek white design matches my decor and blends in seamlessly with the room.
Overall, I’m extremely happy with this air conditioner and its heating capability. It’s powerful, efficient, and versatile – exactly what I needed for my home. Highly recommend it!