Comfort Geni 6X 6" X 10" Warm Air Distributor moves heated air from a fireplace or stove room to the next room, through a wall or floor. The library-quiet fan runs only when the source room reaches a designated temperature. The unit has fan speed settings and fan-heat-cool settings. Comfort Geni 4x moves 40-100 CFM and fits register openings of 4"×12", 6"×10", and 6"×12".
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.