The supply/return pipes that come out of my furnace (I've learned not
to call it a boiler) are threaded black pipe. Only after the
circulators and expansion tank are they changed to copper. I assume
this is to help bear the weight of these pieces of equipment on the
line. Am I correct? Or is it that copper pipe cannot be within a
certain distance to the furnace due to heat or possibility of galvanic
action or some other reasons? Any ideas?
On Nov 5, 10:44 pm, email@example.com wrote:
1) Why are you calling your boiler a furnace?
2) I have seen boilers completely plumbed with copper, completely
plumbed with black pipe, or a mixture of both. Your install probably
just reflects the personal preferences of the installer.
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