Picked up our Bighorn Silverado in November. Had a problem with a front hydraulic jack right off the bat, think we got that fixed. Took it to Arkansas over the holidays and discovered there was very little air coming out of the floor vents. The only ones with enough air coming out to move a ribbon was the Master Bedroom and Bathroom. Had to turn the thermostat way up to try and warm the unit and kept the fireplace going all the time and it still got cold in the kids room. Called Heartland customer service and was told to take the cover off the furnace and see if any hoses were crimped and was also, told my unit was not set up for cold weather. Took it to the dealer when we got back and they couldn't find anything wrong with the furnace or the ducts. Need to do something to get some more air from the floor vents. Need help please.