Duct Size For Kitchen Exhaust Fan

I am an hvac designer but this is a question about an installation i am doing in my own house.

Duct size for kitchen exhaust fan.

When designing ducting for local exhaust ventilation use the prescriptive duct chart bath fans and kitchen range hoods can be sized prescriptively. But have the cfm higher. My duct sizer tells me that would require a 10 5 duct. A good rule of thumb for estimating duct diameter and cfm requirements is.

You required 2215 fresh air and. My question is i m replacing this good for nothing kitchen exhaust fan. If you have any questions please feel free to give us a call at 877 901 5530. Ducted kitchen exhaust fans.

I m putting in a kitchen exhaust hood that is 480 cfm with a 6 round duct connection. 8 to 12 duct 900 to 1200 cfm 10 and up duct 1200 and higher cfm. The physical size of existing fan is enormous 42 inches can i go to a smaller size. The duct size is directly proportional to the cfm rating.

6 to 8 duct 400 to 600 cfm. Since they release the captured air outside as opposed to just. Because this type of exhaust fan requires ductwork and piping running from your kitchen to the outside of your home it can have limited location options. A ducted kitchen exhaust fan draws air from your kitchen through a duct and releases it outside.

Mohammad vaseemakram december 9 2015 at 4 46 am. 7 to 10 duct 700 to 900 cfm. Title 24 requirement ashrae 62 2 2007 ashrae 62 2 2010. Are you interested in representing captiveaire and selling our products.

But if the size of your duct matches your ventilation power your kitchen exhaust fan will do its job properly and quietly. 500 l s meter square for exhaust kitchen hood duct. I ve never designed a kitchen exhaust system before but my understanding was that for bathroom exhaust you want to size the duct for 0 1 of head loss.