Listen, I know it sounds crazy, but hear me out. The instructions are confusing and the temperature won't set. I got this for my mom who called me very frustrated about not being able to figure it out. I thought, come on...how difficult can it be to set up a heater...not difficult at all, so I thought. WRONG. The instructions mention a button and switch on the back that does not exist. I followed the instructions to set the temperature to 65, but it wouldn't set, it just jumped back up to 75. Then randomly it went up to 77. It has a mind of its own. My mom doesn't want the heater, so now I have it. I haven't needed to use it, but in the small time I was fussing with it, it pumps out heat well, but I have no idea how they've managed to make a simple heater so confusing.