I have a two car garage attached to my house that has a small covered hole that leads up into the attic of the garage and the house as well.(I'm only one who could make it up there) My garage is not insulated , walls or ceiling, basically just beams above the ceiling. My question is with the temp being in the low thirties average at night, would it be too cold to have it set up above the garage?( would the air passing thru the tent be to cold another words) Secondly since above the garage isn't insulated I believe an inline fan could barely be heard, but could still catch someone's attention. How can I cut down on the noise being heard through the thin attic ceiling.