Originally Posted By: wdecker
This post was automatically imported from our archived forum.
Inspected a house yesterday. Old (112 years) and it had circulating hot water heat and cast iron radiators.
Seems that someone (previous owner) had the boiler changes and ran copper hot water pipe halfway up, replacing the old black pipe. Where the two meet, isn't there a problem with galvanic corrostion, or that only happen with galvanized.
In other words, the newer copper piping is dirdctly screded into unions with the old black pipe, no di-electric.
Decker Home Services
Skokie, IL 60076