I'm looking for some opinions, so here goes: I want to re-route the dryer outlet right out through the side of the unit through an adjacent exterior wall. The pipe run would be a foot or so. Thing is, in part based on last winter's experience with a frosty aluminum-framed kitty door, I want to limit heat loss. I guess the heat loss mechanisms would be through conduction (the metal pipe to the outside) and convection (the air in the pipe). I imagine I will have some type of flapper vent on the outside, like the current arrangement, and insulate the outside of the short run of pipe to the dryer with fiberglass. Q's: -Am I on the right track, or... -Will no matter what I do result in a cold laundry room because of the short run of pipe, etc? -Any tips? Thanks very much.