6 inch to 4 inch Reduce - 1.5ft duct
Another duct size question.
I've read to never reduce your duct size with a duct reducer for the range as the airflow is affected by the smallest point of it. But I was just wondering, if the length matters at all.
My kitchen's duct is 4 inches leading outside. length is 1.5 feet (this includes one 90 degree elbow). I have tried to remove it, but it seems the elbow is making it difficult to wiggle out as it is screwed to the straight duct.
The range hood I have is 600 cfm. I have an electrical coil top. I really don't plan on using the highest setting much.
Or should I continue to go with trying to replace it with a 6" duct.