I have a '60's vintage "Mercury" fan, Model #M622 (Mercury Fan Co., Cincinatti, OH) that appears to be the same as the 8210. The blades of the butterfly damper (7.75" dia.) are damaged. Would the ones for the 8210 fit?
Thank you for your question on the model M622 vertical discharge fan. The damper for the M622 is no longer available and since the M622 is over 40 years old, we would not be able to tell you if the damper for the 8210 would be an exact fit. You may want to find an in-line damper to place in the duct work.
Date published: 2014-02-04
What is the smallest size duct and longest length this product 8210 can use?
The space i have to exhaust will not accommodate larger than a 4" soffit vent?
Thank you for your question regarding the 8210. This unit requires 7 inch duct and can run 60 feet. You cannot reduce this fan to 4 inch ductwork. If you need further assistance, please call Technical Support at 888-336-6151.
Date published: 2018-03-12