I forgot to mention that it is gas, not oil. In 2010, you need 95% AFUE for
the credit on a gas furnace.

I agree - if a 95% AFUE is a couple thousand more than a "standard" model,
and I can get the Feds to pay for much of the difference, why not do it,
especially given the age of my furnace?

Maryland isn't brutally cold like the northern-tier states, but it ain't no
picnic in the winter, either.





25 years is about many exchangers life span, Go for a 96% Stainless
Steel exchanger unit. You can save on electric consumption winter and
summer with a VSDC motor. With all the electronics and a VSDC motor
the 10-15yr or more warranty is a smart idea. For 1500 back its a no
brainer.