Many local codes require that exhaust fans installed in fire-rated ceilings must be protected by dampers, which, in case of fire, protect against the spread of heat and flame. Broan offers a variety of radiation/fire damper solutions to meet most any need.

•     Housings and finishes (motor assembly and grille) sold separately
•     UL listed (standard 555C) for use in 1-, 2-, or 3-hour fire-rated floor-ceiling and roof-ceiling designs and for use in the following wood truss construction assemblies: L521, L528, L546, L558, L562, L574, L576, L581, L583, L585, P522, P533, P538, P545 and P547
•     Warnock Hersey Listing allows use in combustible ceilings with ducted fans
•     High temperature, non-asbestos, reinforced fiber thermal fabric
•     Galvanized steel frame
•     165°F fusible link
•     Stainless steel negator-type closure spring
•     Available from 50 CFM to 110 CFM
•     Radiation damper comes attached to housing
•     Blower assembly will fit into housing without the removal of the radiation damper - one less step in installation process