How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
Is a range hood exhaust fan required in the kitchen?
Wednesday, June 12, 2019
A range hood is not required in the kitchen of a site-built house unless an open-top broiler is installed, according to both the Residential Edition of the Florida Building Code (FBC) and International Residential Code (IRC). However, if you do install a range hood in a kitchen, it must exhaust to the exterior (not allowed to terminate in attic or crawl space).
One exception is allowed when a range hood is specifically designed to be ductless (listed and labeled), which many are today. It is not required to discharge to the outdoors as long as the kitchen has some other form of mechanical or natural ventilation. (M1505.1 and M1503).
Any kitchen exhaust fan must meet the minimum requirement of the table at 1507.4 of 50 com for a switched fan or 20 cfm for a continuous one.
Mobile/manufactured homes, however, are required by HUD to have a kitchen exhaust fan that provides a minimum of 100 cfm. It can be either a through-the-wall exhaust type or range hood that discharges to the exterior. See our blog post What are the exhaust fan requirements for a mobile home kitchen? for more on this.
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To learn more about heating and air conditioning systems, see these other blog posts:
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