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Hot water heater bonding

18K views 15 replies 7 participants last post by  Celtic 
#1 ·
Tried searching for this and couldn't find an answer. People at work keep telling me hot and cold water pipes at hwh must be bonded, but have no code section to show me. Is it in the NEC, and why if in and out of hwh are already connected does it need to be bonded. Thanks
 
#2 ·
Just like the insides of water meters there are some times not all metal to metal connections. Here it is not a requirement to bond hot and cold, but I do it with new services or panel changes I mean how much is a few feet of ground wire and (2) clamps.
 
#8 ·
note in areas with gas 250.104(a)(b)...when I do a meter resi upgrade Bond all three at the tank....some inspectors here want it...some pay it no never mind...so for 1 more clamp and 1 more foot of wire I just do it...and check table 250.66 for your sizing too...fwiw..:)
 
#10 ·
I have talked to 1 guy in particular and he looks at it like this "with all the pipe dope and or Teflon tape etc the plumbers use it makes sense" para phrase)....so to placate him I do it...I agree the code states "where the systems may become energized" is a little loosy-e-goosy...I can see the argument..so to me small potatoes..$3 I figure in keep the peace and make things sail-a-long...In NYS we have City, Town and private inspections..we also have NYS supplemental codes...so things can and do get strained at times from job to job...so I just try to be consistant...you know the drill..from nitpicker to a glance and wink...we have em all here.:no:
 
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