. All good with no leaks. I checked out the wiring, both 12 volt and 110 volt. All is OK. It has a new 12 volt battery in a box on the tounge. I also checked out the propane system and it all is OK. We never used the furnace as I do not feel comfortable with a gas furnace in a trailer. It comes with a 110 volt electric heater that we used instead of the furnace. There is a fresh air vent in the ceiling that is OK. I just went over the trailer to check for leaks. At this time I see no leaks. The only place we had any leaks was at the air conditioner