Our pantry/laundry room, with a door to the cellar is the farthest and coldest room in the house. My father run 4" duct, from the living room with the stove, through a closet, to the pantry. On the living room end, he put an elbow on it turned up, about an inch off the ceiling. In the pantry, he has it run down to the floor. The pantry is not the coldest room in the house anymore.
He bought one of those Eco fans to put on the propane stove that runs when its too warm for wood. I don't know why though as there is a ceiling fan already running in that room. Its now in the kitchen, mounted just above the wall mounted propane lamp that he got it for a night light.