We have an old (1988) induced-draft gas furnace that we've had trouble
with on- and off- in our house (we bought the house June 2008). Most
recently, we had to replace the ventilation fan motor (no central AC
while that was out). Many of the components have been replaced. The
AC unit outside is about 12 years old.
We're trying to decide whether or not to replace the furnace. We'll
live in the house for perhaps two more years. Putting aside the issue
of an economic analysis of limping along with occasional repairs (and
the associated inconvenience) vs the expense of getting a new furnace,
what are the pros and cons in terms of selling the house in the
One guy who came to give us an estimate on a new furnace said that the
furnace won't sell the house, the house will sell the house. OTOH,
our buyers agent for this house said that there's a good chance
prospective buyers would ask us to replace it before they took
ownership, so we might as well replace it now.