Greetings and Salutations...
Thanks all for the feedback. It does reenforce
my picture of reality (which is always nice).
As for the air circulation issue mentioned
above...I certainly agree with that, and, my
plan of attack is, indeed, to have some HVAC ducting
installed through the house, so I can keep air
circulating (and fresh air pulled into the house
through a heat exchanger), do something to keep
some of the usual dust and cat hair filtered out
of the air, and, do humidity control. I am
installing a geothermal loop, too, and, will be
using that as the heat source/cooling sink for
the HVAC unit.