Considering that the OP wants to heat a 3,000 foot home with
tongue and groove exterior, no insulation, and no tyvek, and
no intererior drywall, in the northern reaches of Nebraska,
I'd say more information needed.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"bud--" wrote in message
...
FBWNDR wrote:

At a
very rough guess, I would assume a 3000 square foot house
in the
midwest would require at least 100,000 BTU/hr furnace,
probably a
little larger.

"A 3000 square foot house" has no meaning unless you know
what the
outside temperature is. It may be a 'true', but useless
number.

Your calculation is a real interesting approach.

--
bud--