My thought would have been to turn up the heat to help things dry out, but
they said that is wrong, wrong, wrong.

Turning the furnace heat up instead of turning the air conditioner to
a low temperature would be wrong, but using a heat lamp is not wrong ,
wrong, wrong.

The reason the air conditioner trick works is not because of the
temperature. It's because the side effect of an air conditioner is
to dehumidify the air.