A:AnswerWe appreciate your interest in our air conditioner! The minimum window opening that will work is 21.88" while the maximum window opening is 36". More information about the window requirements is available on page 11 of the manual, which can be viewed on our GE Appliances website when you look up the model number and go to the product page.
A:AnswerThis also depends on ceiling height, insulation, windows, number of occupants and other factors. If windows are only north facing that could be a major influence. Also depends on how warm and how long your summers are.
