Originally Posted by
mygirlsdad77
you say air is cold coming out of registers, but does the furnace keep the house warm? How cold is it in your area. Older trailer houses dont have the best of insolation. There are many things that could cause your problem. First need to know if furnace is actually operation correctly. Second, it may be undersized, or there may be a hole in the belly of trailer cuasing ductwork to loose heat. Need more info here.
If furnace is keeping house warm, then the cold air you speak of is most likey just a draft feeling. let me know more on this please.