Quote:
Originally Posted by Indyplumber
...and silver soldered the joints.
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HVAC, because of the incessant vibration and the relentless deep temperature-cycling really needs to be done with some kind of brazing rod. The trade seems to prefer 15% silver brazing rod. I'm doing ok with 5%, though the flow is maybe not so pretty.
HVAC is really a much more punishing environment than plumbing.
Ironically, many of the HVAC guys I know talk about "soldering it up", but if questioned, will admit to brazing.
-AC_Hacker