Range Vent Duct Size

Minimum 10 diameter duct recommended duct size of 12 after you consider the size of your duct the next most important factor is the length.

Range vent duct size.

Hood range duct size. All over the range spacemaker microwaves can be vented to the outside using an equivalent total of 140 feet of rigid 3 1 4 x 10 rectangular or rigid 6 round ducting. The minimum recommended duct size is 6 for 0 400 cfm range hoods. The smaller the duct size the less cfm you need and the larger the duct size the more cfm you need.

The minimum duct sizes and recommended duct sizes based on a hood fan s cfm rating are as follows. Minimum duct size of 7 recommended duct size of 8 10 901 1200 cfm. Comments 0 can i use 4 inch round ducting to vent a 24 inch range. A 0 to 400 cfm fan requires a 4 inch minimum duct size but a 6 inch duct is recommended.

Minimum duct size of 8 recommended duct size of 10 12 1200 cfm. I m putting in a kitchen exhaust hood that is 480 cfm with a 6 round duct connection. I am an hvac designer but this is a question about an installation i am doing in my own house. Duct system sizes and airflow quick chart created date.

Over the range microwave ducting information duct installation guidelines. Here is a breakdown of the duct size you need based on your range hood s cfm. 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. If you have a range hood with a cfm of 0 400 you will need a minimum duct size of 4.

Duct size for vent hood. If your hood is between 601 and 900 cfm you need a minimum duct size of 7. For more information on duct size click here.