Geothermal heat pump.

"Dick" LeadWinger wrote in message
...
If one were going to build a home today in an exclusive (multi-million
$) housing area between 6,500 and 7,000 foot altitude, what would be
considered state-of-the-art in heating systems? This area gets heavy
snow in the winter. Also, considering that the house is pretty
high-end, would it be common to forget about air conditioning even
though there would be some pretty warm days in the summer?