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 dielectric union
Author: pallen (AK)

I have an HC model Modine crawlspace, hydronic heater with a fan. It has copper tubing, and my supply and return lines are copper. There are no dissimilar metals. Only bronze connections besides copper. Since there is an electric fan, do I need dielectric unions, or will brass unions be ok? I was also advised to use flex pipe, but the only flex pipe I can find is SS. The old flex pipes were copper. What is your suggestion on the flex pipe? thanks!

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 Re: dielectric union
Author: bernabeu (SC)

no dissimilar metals = no need for dielectric unions

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

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 Re: dielectric union
Author: hj (AZ)

A di-electric would be a detriment, since THEY ARE made of disimilar metals.

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 Re: dielectric union
Author: packy (MA)

look up "flexible baseboard connectors"

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