Product review (1 stars): This unit was recommended by XtremeAir as more than adequate
I purchased this item to go above my indoor grill and the house fills with smoke.  This unit was recommended by XtremeAir as more than adequate.
At first customer support was nice and offered suggestions. After nothing worked they became very nasty and said they will not take anything back.
They refused to give the name of a supervisor or officer. DO NOT BUY FROM XTREMEAIR. THEY DO NOT STAND BEHIND THEIR PRODUCT!