I haven't had to start up my folks hrs for a year. theonlytome they reboot is if you have a power failure or they get a software update. thats very rare. We aren't talking about hitting the power button. We are talking about plugging it into power. No one does that on a regular basis. And last I saw, it would need to hit well over 140 degrees to have the fan kick in. When was the last time anything hit that temperature and you didn't want a fan near it? If your current DVr hit that temp it'd likely shut off just like the dtv ones do.