Is Exhaust Fan Required In Kitchen With Chimney. The fans installation instructions should specify the diameter of the duct. All air supplied to such spaces shall be exhausted including any air in excess of that required by Table 4033.
As the exhaust fan is mounted far away from the heating cooking source the smoke and hot steam move all around the kitchen and after a certain time it gets exhausted by the exhaust fan. Kitchen Chimney Vs Exhaust Fan Although chimneys and exhaust fans are both adept at combating indoor air pollution a chimney is more effective as it can also eliminate oil and grease. I have a house in Alabama the house was expanded for a carport and part of the original roof is now inside the attic.
By exhausting continuously in the kitchen even if the homeowner doesnt turn it on as a RH you get some benefit at least keep the contaminants in the kitchen area.
So along with chimney a 8inch exhaust fan is also r. The duct should be smooth and straight with as few bends as possible. In Indian kitchens we require both. Even if they are used for the same basic purpose these two units are very different and making a choice between the two has always been a major challenge to many homeowners.
