This is the fan I have: http://www.amazon.com/gp/product/B003YFADW8/ref=oh_details_o05_s02_i00
Surprisingly I could find no discussion of how to set up the duct, probably because it should be such a simple thing to do.
Does it have to be a 6 inch duct, or larger than the diameter of the fan? The bulbs are 400w MH and HPS, and I want to use insulated duct because it reduces the noise. The length the air will move will only be about 5-7 feet at most. Going to run off to the store soon.
Surprisingly I could find no discussion of how to set up the duct, probably because it should be such a simple thing to do.
Does it have to be a 6 inch duct, or larger than the diameter of the fan? The bulbs are 400w MH and HPS, and I want to use insulated duct because it reduces the noise. The length the air will move will only be about 5-7 feet at most. Going to run off to the store soon.