Bathroom exhaust fans are the most common way to properly ventilate and control moisture in residential bathrooms. Along with providing effective ventilation, bath fans with a ceiling radiation damper ...

SCHOFIELD, Wis. — Greenheck’s new ceiling radiation damper model CRD-320WT, combined with select models of Greenheck ceiling exhaust bathroom fans, adds even more code-compliant options for wood truss ...

Description: This product, combining the company’s ceiling exhaust fan and ceiling radiation damper at the factory into one unit, is shipped ready to install. The UL classified ceiling radiation ...