Product review (4 stars): As advertised
Works great.  Our laundry room is a lot warmer now.  Not the prettiest thing sticking out of the side of the house...but,
I plan to stain it the same color as the walls, this Spring.

Hardest part was replacing the old stove pipe going through the wall.  (A tapered end is needed
to fit into the dryer vent closure opening)