News We Follow: Kitchen Exhaust Checklist

From an article in Pro Remodeler We’ve shared information from Pro Remodeler articles before and, today, we are doing it again. Subscribing to their magazine has brought us a lot of really great information. This particular article focused on some simple ways to make sure the kitchen exhaust you install is the right one. Below are some bits of key information from the article. To read the full story, go here! kitchen ventilation

  • Choose the right size exhaust fan
    • Kitchen fans intermittently operated should move 100 cfm of air or more.
    • When possible, test the airflow before closing up the walls using a duct blaster or a manometer and hood cover. This equipment can be expensive, so the most affordable option may be to hire a third party to conduct the test.
  • Install the fan at the proper height above the stove
    • Most manufacturers recommend installing the hood 30 inches above the cooking service.
    • The IRC sets 24 inches as minimum clearance, and the hood must extend the full width and depth of the cooktop.
  • Vent the fan to the outside
    • Code requires venting range hoods to the outdoors, and specifically prohibits venting them into an attic, crawl space, joist bay, or other area inside the building.
    • Large-diameter ducts trap less grease and provide better airflow.
    • Cut openings in the ceilings or walls as close as possible to the dimension of the exhaust duct, and air seal the opening with caulk or spray foam.
  • Place the outlet at least 10 feet away from intake vents
  • Turn the fan on and watch
    • The simplest and cheapest way to make sure the fan is actually working as intended is to turn it on and watch what happens
    • Check outside to make sure the louver at the exhaust wall cap is working properly
    • Inside, you can use a smoke puffer or hold some thin paper streamers to make sure that air is moving into the hood.
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