We used this throughout the summer, but are moving into a place where we will not need it and it does not fit. It is a unique AC that took us forever to find because it works in vertical window openings. We still have the mounts, but you can fit this in the window even if your window slides "left/right" vs. "up/down." You can put cardboard or foam above it, but we had a piece of plexiglass cut so we could keep as much light and aesthetic as possible. The specs are below, but this goes for around $500 on Amazon even in the off season, so it's a steal! Specs: Specially designed for casement-window or sliding-window installation - installation kit included (Not suitable for standard-window installation) 10,000 BTU air conditioner cools a room up to 450 sq. ft. with dehumidification up to 3.4 pints per hour (Uses standard 115V electrical outlet) Multi-speed electronic controls with 24-hr. on/off timer and full-function remote control Auto cool, Energy Saver mode, Sleep mode, 4-way air direction and washable mesh filter with check filter alert Energy Efficiency Ratio (EER): 10.4 Window height- 21.5 inch minimum / 40 inch maximum. Minimum window width- 15.5 inch The listing description on retail site: Frigidaire's FFRS1022R1 10, 000 BTU 115V Slider/Casement Room Air Conditioner is the perfect solution for cooling a room up to 450 square feet. This unit is specifically designed for use with sliding horizontal windows or casement windows and is not suitable for standard (double-hung) window installation. Ready-select electronic controls allow you to easily select options with the touch of a button. The full-function remote control allows you to precisely control the temperature and fan speed from across the room. The multi-speed fan features three different fan speeds for more cooling flexibility and 4-way air direction control allows you to direct the air where you want it. The washable mesh filter with side, slide-out access reduces bacteria, room odors, etc.