"Tom" wrote in message
However, in the county that I live in (N. Illinois), the powers setting
the standards for construction have seen fit to set the minimum as 32".
Thus, you could install it yourself at the 30" minimum and not void the
manufacturer's warranty but to get a licensed contractor to install it,
you have to have the 32" min.

The extra 2" of lifting in a dish could be a deal breaker for many people,
like my wife for instance.
Ed