Guys,

The heating furnace in my newly purchased home is 15+ years old. Its heat exchanger is rusted .The inspection report states that furance is toward the last phase of its life.

I have two options

1. replace the heat exchanger, which seems like a sub 600$ investment and delay the new furnace investment.
2. Buy a new one, sears gave me a quote of $4000 [ ouch...ouch].

Pls advice, i got to dig deep to find that extra 4k and also a baby is on the way too.....

-Raj