Nutone Bath Ventilation Fan Fire / Radiation Damper, Nutone 80RDB, Nutone 110RDB, Nutone HD50RDB, Nutone HD80RDB, Nutone RDA

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.

Being fire-rated means the ability of a wall, floor/ceiling, or roof/ceiling to withstand the effects of fire for a specified period of time. NuTone ceiling radiation dampers are designed to protect the openings in 1-, 2-, or 3-hour fire-rated floor-ceiling and roof-ceiling designs.

Nutone Fire / Radiation Damper Components
Housing and Damper	+	Blower and Grille	=	Complete Unit