Thread: High Efficiency gas furnace - return air temperature
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M Q M Q is offline
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Default High Efficiency gas furnace - return air temperature


wrote:

Speedy Jim wrote:

....
Yep, they spec that so that condensation is unlikely
to occur in the main (pri) heat exchanger, which could
cause early failure.

It can become a warranty issue (if you care).

Jim


it becoming a warranty issue - how can they _prove_ I ever allowed
the temp to drop below 55F?


Of course, unless you bought the extended warranty, the heat exchanger
is likely to corrode through after your warranty expires.

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