We are looking to buy some whirlpool appliances. Of course I want them all to match. This includes the range. I am wanting a microwave range hood ( just have a regular range right now). Well anyway we are getting them at ***** and I asked the man about us installing it and he said make sure there is 14' from the top of stove to the bottom of the microwave. Also said would not work if the pipe was round, had to be rectangular. Ours is round. Can't I buy an adapter or somthing? Any pointers would be greatly appreciated. Looks like we are going to half to cut into the cupboard to make this work.