Product review (2 stars): 30" Model Really VERY Hard To Install
Installing the 30" model is not for the feint of heart! The location of the mounting holes (especially on one side) make it impossible to screw in from below. The closeness of the mounting screw holes to the side of the unit were a big problem for me as my cabinet bottom is particle board and bolts had to be used in place of screws. The bolts end up so close to the sides of the cabinets that the nuts could barely rotate. Also, no paper template is provided to make the drilling of holes and placement of ducting easier. All but the last two comments are likely improved in the wider models since there is more room to work inside the unit. Despite all this, I do like the unit. But we ultimately needed many trips to the hardware store and three sets of hands to get the thing installed. It shouldn't be this hard!