Product review (5 stars): Easy instalation on 8 foot ceiling
It can be installed on 8 foot ceiling.
It is easier to install with the help of two persons.
I replaced the existing exhaust with this one. I connected the duct to the existing duct.  We did open a hole on the ceiling to place a piece of wood between the rafters to secure the holding plate.
Yes, it required some basic handyman work, but nothing out of the ordinary. I did not have to cut any of the metal parts.
The clearance to the stove top is 28 .5 inches.
Yes, I would recommend it to my friends!