Set it on the kitchen counter and let the drain hose run into the kitchen sink. Even so, as Dave said, I don't see any way you could get 30 pints in one night out of a TT.
Have you actually had a humidity problem or are just trying to be prepared? We have a 40' MH and don't have a humidity problem - there are just the two of us and not a bunch of kids. We just spent several nights in northern NM and AZ at less than 40D with no noticeable humidity. Besides showers, we did the wash and let it dry on a rack in the front room. Remember the humidifier is just one more thing to haul around and get in the way.
Question: Why would running the furnace cause humidity inside the TT? Any humidity caused by the burning of propane during the furnace operation would be exhausted outside the TT with the spent furnace gases.
Bill
