Ed Pawlowski wrote:
On 10/24/2015 3:44 PM, Gary wrote:
Our old Amana 92% after 20 yrs is still working good but they say we
should buy a new one at twice the price of the old one. For this kind of
money around $8000.00 they ought to last atleast 30 yrs! why can't they
make the heat exchangers better?


They can, but it costs more.
How much is a heat exchanger? At 92% not much reason to do more than
replace the exchanger and make it safe again.

Some heat exchangers are life time warranteed.