What is the maximum length for a range hood’s ductwork?
For optimum performance, make sure that the air duct is short and straight, with a maximum length of 50 linear feet. Long radius elbows are preferred to short radius elbows for better air intake. Note: Each elbow is equivalent to 10 linear feet of duct. Be sure to also install a wall or roof cap. If you have any questions, consult a qualified ventilation installer, or contact our Technical Services department.