My dryer is located in the garage and is vented directly to the outside. However, it pulls air in from the garage. My exhaust vent is clean and flowing freely. I think that the dryer is having a hard time drying because the air it is heating is humid from the garage. The garage is enclosed, but air tight, so whatever the humidity is outside, it is close to the same in the garage. Am I on the right track with my conclusion?