Kinda like the outside air kit in the pellet stove world. I was wondering if anyone has converted a single hose to a dual hose. If so, did it make much difference? I know you could just buy dual hose units but what us the fun in that.
I'd be curious about that as well. I have a portable AC up north hat I break out once or twice a year in August. I bought mine used and wasn't too picky.