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Copper to steel/iron in a closed loop system
What is everyone's opinion on connecting copper to iron/steel in a closed loop hydronic heating system. Boiler to piping, air scoop to piping, iron flow checks, the list goes on and on. I've heard to use anything from a brass valve in between to dielectric unions to just thread 'em together and forget about it.
Has anyone seen leaks from galvanic corrosion due to the connection of these different metals or is it ok?
Thanks for everyone's experience!!!!
Master electrician specialising in boiler and burner controls, multiple fuel systems, radiant system controls, building controls, and universal refrigeration tech.