Quote Originally Posted by grey1223
Sorry, didn't mean to flame. I can only state what works in my environment. Ishould have mentioned that the fan is on a rheostat and though running 24/7 it's at about 1/2 speed which should add to the life of fan and filter.
No hard feelings, bro. Smart move putting your fan on a rheostat, I've heard horror stories from folks who wired them up to standard indoor dimmer switches. I've been meaning to pick up a rheostat for a while to help kill some of the noise, but I have the oddest tendency to forget things. Must be these cursed cigarettes...

Take care! :jointsmile: