Kitchen Hood Exhaust Duct Size

Minimum duct size of 6 recommended duct size of 8.

Kitchen hood exhaust duct size.

The minimum duct sizes and recommended duct sizes based on a hood fan s cfm rating are as follows. Are you interested in representing captiveaire and selling our products. If your hood is between 601 and 900 cfm you need a minimum duct size of 7. The larger the duct the more efficient and powerful the hood will be given that the blower.

In addition the duct size will dictate the amount of cfm levels that can be achieved with a range hood. After paying attention to your duct s diameter size the next thing you have to consider is its length. Range hood duct length. The main thing is to remember that the blower size and type that is inside the range hood is equally as important as the size of the hood itself.

A 0 to 400 cfm fan requires a 4 inch minimum duct size but a 6 inch duct is recommended. Sizing exhaust hoods improving commercial kitchen ventilation ckv system performance fundamentals of kitchen exhaust 2 the cooking factor 2 the hood factor 3. Please fill out the following form and we will contact you soon. When the air cools down the moisture condenses and collects on walls countertops and cabinets potentially damaging finishes or supporting mold growth.

If your hood is between 901 and 1200 cfm then you should go for a minimum duct size of 8 and if you have a 1200 cfm hood consider going for a minimum duct size of 10. The general size and rule of thumb for mua is a 6 hood or larger or 2000 cfm or more of exhaust flow. With a good duct length you can be able to exhaust the cooking air effectively even if your ductwork is. If your conditioned air whether heated or cooled is getting pulled out of your facilities at a rate of 2000 cfm or greater it will cost you allot more money in the long run than the initial cost of a mua fan.

Cooking also produces excess heat and if you don t have an exhaust hood the heat raises the temperature in the kitchen which increases its ability to hold moisture. Sions and exhaust duct size remains the same the result will not only be a decrease in exhaust velocity but a corresponding in. Ommercial kitchen design professionals were concerned that the minimum exhaust air ductwork velocity of 1 500 fpm 7 62 m s as required by the national fire protection.