I am installing a standard cooker hood type extractor. For various reasons, the ducting will have to follow a long, tortuous route of about 18 feet with possibly 5 right angle bends. I assume that there will be a loss of power because of this.
Would fitting an extra in-line duct fan at the outlet help? Does anyone have experience of this?
Would fitting an extra in-line duct fan at the outlet help? Does anyone have experience of this?