Kitchen Exhaust Backdraft Damper

They are a necessary component for installation in 6 star rated energy saving homes.

Kitchen exhaust backdraft damper. I searched for wall termination louver type dampers but this fan is. The famco bd butterfly damper is used as a back draft damper for heat exchangers exhaust systems solar heating systems and other intake or exhaust applications where a powered damper is not needed. They need to be able to open easily when the fan starts up some passivhaus builders don t install a range hood fan that is ducted outdoors. Luckily my clients trust me and declined to order a huge 1600 cfm kitchen exhaust fan and settled on a 3 stage fan with a maximum of 400 cfm.

Typically used for kitchen exhaust systems. 55 1 30 oz 44 71 44 71. There is only one practical application for installing modulating dampers in high temperature grease ducts over kitchen hoods serving commercial cooking equipment. A high rise building in an urban setting with a kitchen having multiple hoods totaling over 10 000 cfm that are located on a lower level where there is no other way to exhaust the effluent other than design a single chase and duct.

Find duct fans dampers at lowe s today. Silencers and backdraft dampers. 7 inch round spring loaded backdraft damper by american aldes. We sell backdraft shutters in both plastic and metal with a variety of sizes available depending on the size of fan and ducting you are using.

Hvacquick csl series elbow duct silencer. This damper works in both horizontal or vertical positions upward airflow only and the foam seal provides minimal air leakage. First it seems that building code here in nj does not allow for an inline damper to be installed i think. Back draft dampers are commonly installed in fan exhaust systems to prevent a back draft of outside air when the fan is off.

I d like to install a damper somewhere but i m running into two issues. In addition they install an exhaust grille in the kitchen ceiling. Backdraft dampers aren t airtight for technical reasons. Air pressure or out draft opens both types of back draft dampers.

Broan 438 8 inch round range hood and ventilation fan exhaust damper n a. When attached to an inline or remote fan the ld silencer dramatically reduces the sound traveling through the duct. Back draft dampers allow exhaust air to flow out of the home while stopping air from the outside of the home to leak in. The damper is either a spring return type for both horizontal and vertical mounting or gravity return used in vertical venting only.

5 0 out of 5 stars 1. 1 16 of 478 results for range hood damper skip to main search results amazon prime. In this installation video we show you how to install a back draft damper.