Product review (1 stars): not enough heat when downdraft turned on
Just installed today.

I would NOT buy it again.  The downdraft sucks away the heat so that the food being cooked takes forever to cook.  A small 1/2 quart pot of soup was still lukewarm after five minutes on high heat with the downdraft turned on.  I finally had to turn off the downdraft to get it to come to a boil.

And  the downdraft only works well on the two back burners.  I would not use the downdraft except that it must be turned on to protect the kitchen from carbon monoxide fumes emitted by the burners.

The heat element is too far from the bottom of the pot, and the burners do not emit enough flame for quick heating.

Very poor design.