JimL wrote:

On Sat, 30 Apr 2005 16:57:30 GMT, "James Repetski"
wrote:

....
I'd have a heat pump as primary and propane as secondary backup.
....

The efficiency of that choice will depend heavily on the location and
type/quality of the heat pump. If OP's in a really fridgid location, an
air-exchange heat pump may well run on the backup heat most of the
time. A ground exchange system might solve that but would be more
expensive initially...