As well as the proper ducting/roof venting (right now my fan is not really vented that well, it creates ice on the lower roof)
One thing I'm wondering though is if there is no filter, like regular bathroom fans, it will start to get clogged with dust, and impede performance. I think this is what kills most cheap bathroom fans, is dust.
Should I add some kind of filter solution to this setup or are inline fans able to cope with dust ok? I want this to last, and not die in 1-2 years like standard bathroom fans.
Also am I right in assuming these fans can handle -50's, and +50's? Attic temps can be extreme depending on time of year. I assume they are built for this.