elgato Posted May 16, 2014 Report Share Posted May 16, 2014 I found a ground wire attached to a clamp on a water line from the boiler today. I have seen them attached to plumbing lines, but never a heat line. I guess the path is there eventually as the heat pipes will eventually connect with the water line, and there was a jumper over the water meter. But I don't think this is a proper termination for the ground. Am I being too picky? Quote Link to comment Share on other sites More sharing options...
Marc Posted May 16, 2014 Report Share Posted May 16, 2014 I wouldn't depend on the conductivity of the boiler to ground the remaining plumbing in the house. Service on the boiler might interrupt the ground connection, sending the plumber to the loo. Marc Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted May 16, 2014 Report Share Posted May 16, 2014 Of course, the grounding electrode conductor has to connect to the water service pipe within 5' of the place where it enters the building. You're supposed to ground other metal piping systems that are likely to be energized. I wouldn't have a problem with grounding the heating pipes, but not just the heating pipes. Quote Link to comment Share on other sites More sharing options...
John Kogel Posted May 17, 2014 Report Share Posted May 17, 2014 I think you are seeing the bonding strap which is required to prevent stray voltages from shocking people. The jumper is there to bond the two lengths of pipe. If you call it bonding, it becomes clear, the grounding is provided by another conductor coming from a rod or a connection to the foundation. Quote Link to comment Share on other sites More sharing options...
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