03-09-2015, 09:47 AM
As far as I know they are original. I can see how they might cause a fire if that built up dust was to get blown into the heating elements. Probably somewhere it says to clean out yearly. They are still very quiet.
1988 40 ft 8v92 newell
Coach name Big Blue
25 ft Haulmark car hauler with Andersen Anti sway
2012 Toyota FJ Cruiser.