Greenheck’s EM-30 Backdraft Damper series was recently AMCA Licensed for Air Leakage and Air Performance. Designed to open by air pressure differential and close by gravity, backdraft dampers can be ...

Q. This week: I had my kitchen remodeled recently and purchased a new downdraft range, vented to the exterior. This winter I feel a cold draft when the stove is not in use. There is cold air coming ...

Q. Our home has a combination microwave/range hood that discharges directly through the sidewall of our home. The wall jack has a weather-head with a spring closure for the backdraft damper. The ...

Heavy-duty, double-flanged, channel frame-style backdraft tornado dampers are designed to protect against tornados and rapid pressure changes. Installed in ductwork or wall mounted near the exterior ...