Handy heaterIf you have electricity, those 350W heaters placed around TC makes for even heat. No problem to put one at your feet.
If using camper furnace - Lance has plenty of heating outlets and seem PO of mine was already playing with them to direct the heat to crucial area.
I did not use Lance in cold, but on my previous camper I put a gate on duct going to holding tanks compartment.
Did not camp in freezing temperatures, while I did not like the idea about pumping hot air to the woods via all those holes around tanks.
