Do you need it to be multi-functional (since many units now pair as a heater, fan, and/or dehumidifier). Haier uses 3 fan speeds want 900 watts to assist it become operate while SPT uses 2 fan speeds need 620 watts to cause it to be operate. Installation is very easy and all you'll want to do is install the venting tube out the window. Here you can point the cooling directly at the spot where you want doing it.