Guest said I need a unit size of 8,000 Btu per room 16 x 16th In fact, LW8011ER unit to cool in the wrong rom isolated from 95 + degrees to 72 degrees for 2 hours. Others have said unit is noisy. I did not have the appropriate window. I had to cut a hole in the outer wall and mount the drive. (Just set it to 2 x 6 studs + 1 / 2 inch liner sheet + 1). Use repellents = foam insulation muffle the sound, the unit is not strong, it does not disturb the neighbors at night and can not be heard in other parts of the house. I am very pleased, great price, great drive and very good results. Wouold am ready to buy again. Greene CR Santa Rosa, CA

