I am in the middle of tow projects: 1. installing a wood stove in the basement and 2. finishing the same basement. Right now, the wood stove will be right beneath the two bedroom. I have hardwood floors and the flooring is exposed from the basement for a few weeks until the contractor throws the drywall and insulation up. My question is this: I would like to throw a convection register in the basement ceiling/bedroom floors while it is still easily accessible. I realize the potential fire danger with this and am installing the automatic closing registrers/fire dampers as well. I have researched the cheap small duct fans and wondered if they would help boost the natural convection process? Also, are the fire dampers normally code approved, thus bringing a convection duct up to code standards?