Nice Unit . Propane heat will make it comfortable for a weekend but longer stays it will start to get wet on the inside of the walls and roof thats what I found with mine and mine is insulated . I found a diesel heater from a Boat used on Craigs list i believe its a Nemar (Spelling ?) wall mounted works great and dry heat as for the Rest its cots and coolers for the summer then its mobile storage for the winter