2012thorhurricane31jfurnace
hello...have a thor hurricane 31j...2012...outside45..inside, therostat set at 75...back of coach has 1 vent in bed room,1 vent in bathroom,2 rite outside of bathroom...1 mystery vent on floor behind drivers seat. back of coach comfortable...front of coach...very cold....this floor vent in the front has a foil/board cover under the vent grate. furnace stays on maybe 5 minutes ...what is the floor vent for and should that cover be under the vent grate? 3/4 of the coach is very cold...very new at this rv thing thanks,,,MC
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