Duct Size For Kitchen Exhaust Fan

Hopefully this kitchen exhaust duct sizing guide helps provide some answers and insight about choosing and planning out the size of your duct and how you will run it.

Duct size for kitchen exhaust fan.

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. Title 24 requirement ashrae 62 2 2007 ashrae 62 2 2010. 8 to 12 duct 900 to 1200 cfm 10 and up duct 1200 and higher cfm. 6 to 8 duct 400 to 600 cfm.

Are you interested in representing captiveaire and selling our products. Since they release the captured air outside as opposed to just. You required 2215 fresh air and. The physical size of existing fan is enormous 42 inches can i go to a smaller size.

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. 500 l s meter square for exhaust kitchen hood duct. When designing ducting for local exhaust ventilation use the prescriptive duct chart bath fans and kitchen range hoods can be sized prescriptively. The cubic feet per minute rating is a measure of how much air the fan can exhaust from the kitchen in a minutes time.

Ducted kitchen exhaust fans. My question is i m replacing this good for nothing kitchen exhaust fan. A good rule of thumb for estimating duct diameter and cfm requirements is. I am an hvac designer but this is a question about an installation i am doing in my own house.

My duct sizer tells me that would require a 10 5 duct. Please fill out the following form and we will contact you soon. Mohammad vaseemakram december 9 2015 at 4 46 am. But have the cfm higher.

The duct size is directly proportional to the cfm rating. 7 to 10 duct 700 to 900 cfm. A ducted kitchen exhaust fan draws air from your kitchen through a duct and releases it outside.