we just had a new osburn 2400 insert put in. i havea 2500 sq ft house. unit is in den on first floor have a 3/4 basement (not under den) above the den is master bedroom was thinking of adding ceiling fan in den and one at top of stairs upstairs (that one in reverse to draw air up) then add a vent from den through floor to master bedroom and see how that works and possible add some room to room vents after that for other rooms upstairs. i was hoping to hear some opinions on that idea and any additions i should think of and also what types of vents r good to look into want one with a fan to movemore air arround. thanks guys this forum has really been a help with choosing a stove and with getting wood n c/s/s it glad to be a part of it. thanks again