Hello. My Jotul 3 direct vent gas stove was installed in Jan. 1997. Other than replacing the switch a few times, have generally had no trouble with it. Replaced carpeting in the room it is in this summer and had to remove the stove from the room. After putting the stove back in place and a couple months later lighting the pilot and using it I smelled natural gas. Called the gas company who found a small leak in the connection from the basement to the stove and tightened it. Couple of days later still smelled natural gas, called gas company back who recommended we have the stove serviced, they found no additional gas leak. Had the stove serviced by a local (Buffalo, NY) company who cleaned it thoroughly but couldn't find any reason for any natural gas smell. It is still happening. Has anyone else had any problems like this? The technician thinks it may be from a downdraft, but we have never had any problems with any downdraft in all the years we have had it. could it have something to do with the vent pipe having been taken apart to remove the unit from the family room this summer? Any thoughts?