Product review (5 stars): Nice simple unit and easy to install
Some information about minimum duct height for the 55-UD would be helpful.
I downloaded the Owner/Installation manual, nothing.
Went to the Skuttle website, nothing.
Finally found the information here http://www.theenergyconscious.com/skuttle-hq013.html under the "Specifications" tab.
This only told me it has 7-5/8" of pad sticking into the duct, I hope this isn't a problem with only having an 8" high duct?
Although I think that is a pretty standard height?

I will update my review after I get everything installed and let everyone know how it goes.

2/7/2015
Got the unit today, super fast free shipping.
Took me about 3 hours to install.
I adjusted the water valve to reduce the water flowing out the drain while running.
We'll see how it goes.