I have a standard style Cape with a pellet stove in the corner of the downstairs. It gets very cold upstairs even when the stove is cranked. I am thinking of putting a floor register with a fan. My question is do I put one or two fans and would I have the fans both pulling the hot air from the downstairs pellet stove room up into the two rooms I wish to heat upstairs. Thanks for any help, for the past couple years I have just dealt with it but we will have a baby upstairs so I'm trying to make it comfortable with out having to use the oil!