I would certainly be interested in finding out if this was the electrical contractor following the design of the home spec's or simply cutting corners.

Yes. There is a big difference in the amount of work, headache and some cost savings associated with the 12/3 use. My money is on the electrical contractor having made the change as this is not common.

Rich

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"If con is the opposite of pro, is Congress the opposite of progress?"
Richard Rushing, HCRI
Duncanville, Tx.