and as you can see i have short runs in the exhaust and a 90 here and there, it is a vortex 6" fan so that shouldnt be a problem. i did try to disconnect my carbon filter which holds 15lbs of carbon and the fan was sucking way better(filter could be alittle too big). i was able to touch the glass after 20 minutes but ws still way to warm, i think its too small of a glass and is holding the heat in more.