Any leaking/moisture problems?
We have the Eagle HT 23.5 and have camped at cold temperature, used the furnace plenty. The only time we experienced condensation (just on the window panes) was during a heavy, very humid spring trip, torrential rains, the 3 dogs and us would come in wet and yuck! other than that, no problem with condensation. The bedroom gets too hot, being just behind the furnace, I plan on getting some heat re-routed to the back bathroom as it is cold, too far from the furnace. Lots of little problems at first, but the dealer fixed them all. This is going to be our 3rd summer with it and we use it really well. We tow with a Dodge Ram1500 and it tows very nicely. This unit is well insulated, (for an RV, it's not a house) and keeps the outside noises out compared to the previous TT we had.