Kitchen Ventilation Duct Size

Determine the recommended ventilation based on your kitchen s size.

Kitchen ventilation duct size. This equates to a complete cycling of air every 4 minutes. If you have any questions please feel free to give us a call at 877 901 5530. Because ventilation requirements vary from state to state and even from city to city it s important to check with local. A good rule of thumb for estimating duct diameter and cfm requirements is.

The hvi also recommends that your range hood should be capable of cycling the air in your kitchen completely 15 times per hour. The cubic feet per minute rating is a measure of how much air the fan can exhaust from the kitchen in a minutes time. When designing ducting for local exhaust ventilation use the prescriptive duct chart bath fans and kitchen range hoods can be sized prescriptively. Some state building codes do require mechanical ventilation such as an exhaust fan in the kitchen.

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. 7 to 10 duct 700 to 900 cfm. Ventilation systems for ventilation and air handling air change rates ducts and pressure drops charts and diagrams and more. But if the size of your duct matches your ventilation power your kitchen exhaust fan will do its job properly and quietly.

To make the final calculation take the larger of the cfm rating for stove width room size and stove burner. Air ducts friction loss diagram a major loss diagram for air ducts imperial units ranging 10 100 000 cfm. Moreover code watcher advises that since 2009 the international residential code irc includes a section on air replacement for houses with active kitchen ventilation. Are you interested in representing captiveaire and selling our products.

Begin by measuring the floor area of your kitchen. Please fill out the following form and we will contact you soon. The duct size is directly proportional to the cfm rating. Air ducts velocity diagram air flow volume duct size.

Title 24 requirement ashrae 62 2 2007 ashrae 62 2 2010. 10 pipe length 25 elbow 25 elbow 40 roof cap 100 cfm. 6 to 8 duct 400 to 600 cfm.