Product review (5 stars): Works Great and Easy to Install!
My husband installed this super quick and it does exactly what it says it will do.  We have oil heat which is so expensive that we don't want to waste any heat that we have going on in our house.  Our dryer vent runs down to the basement, so this is great for extra heat down there.  Of course it means I have to keep up with the laundry too...........lol.