Replies

1. GBA Editor
   Martin Holladay|Feb 12, 2017 10:47am|#1

   John,
   You should look into Fantech's "mixed flow" fan line.
   http://www.fantech.net/products/fans--accessories/circular-duct-fans/circular-duct-fans-with-ec-motors/fkd-ec/fkd-12-xl-ec-mixed-flow-fan/

   Contact Fantech for more information.

   -- Martin Holladay

2. 
   Bill Dietze|Feb 12, 2017 12:15pm|#2

   John,

   I went looking for just this item at one point, but for lower flow than Martin's example, and came up with these (I've never used these so I'm just forwarding the data on it with no recommendation):
   http://www.fantech.net/products/fans--accessories/circular-duct-fans/circular-duct-fans-with-ec-motors/prio-ec/prioair-6-ec-inline-duct-fan/(continuously variable speed, also Fantech)
   and
   http://vents-us.com/images/cat/706_301_cat_file.pdf(two speeds)
   And I'm sure there are others.

   Bill

3. 
   John Ranson|Feb 13, 2017 12:51am|#3

   Fantech was the right direction. The FG EC series looks the most reasonable. They're electrically commutated, efficient, can be controlled by 0-10V signal, and are available down to 180cfm peak. They're also energy-star and HVI rated. It's not clear if they're appropriate for venting moist air, but I'll ask Fantech.

   Thanks much!

   --John

4. 
   John Ranson|Feb 14, 2017 12:02pm|#4

   Fantech says the FG EC series is appropriate for bathrooms.

   --John