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Heater communication (???)

jmb2560
12 years ago

I recently bought a house with an old furnace (mid seventies). PG&E told us that we have to hazard and disconnected the "communication between combustion air and circulated air". They requested to "rebuild the communication".

It's finally summertime in California and we have some time to fix this before winter but... Does that make sense to anyone?

Thanks in advance for your help.

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