Thanks! I googled last night and found this: Looks like a lethal error:
"Dutchmen Manufacturing, Inc. is recalling 171 model year 2011-2012 Rubicon travel trailers manufactured from Dec. 8, 2010 through July 15, 2011. These vehicles may have been manufactured with the exterior furnace vent not installed in the sidewall of the trailer. The furnace can run without the proper exhaust ventilation and release carbon monoxide to the interior of the unit. This could result in asphyxiation or carbon monoxide poisoning. The heat build-up from the exhaust can also result in a fire."
