Standard in Canada for residential and commercial. No local disconnects are required for water heaters, just the breaker. AC90 or a sleave of flex for mechanical protection is often required. Why do you think a cord and plug would be better? I think it would just add another uneccessary connection, expense, and failure point.
Last edited by mikesh; 07/18/0712:38 PM. Reason: add a question
A piece of Romex, sailing through the air, just doesn't seem right to me- even when proper connectors are used. Many times, there is no box at all - just a piece of wire coming thrugh a hole in the wall.
IMO, some kind of metal flex would be better.
I really think that anything that will need replacement ought to have some means at the appliance to disconnect. If nothing else, it reduces the temptation to work hot, and is much more convenient when troubleshooting.
I like cords & plugs, simply because there is less opportunity for the plumber, the HVAC guy, whoever to touch the electrical system. I really don't want them to begin to think they're electricians, too!
I've seen flex, EMT or PVC nearly everywhere that I have been in Florida, but here in Virginia, they are still hardwired with Romex like in the original picture. Mine even had the Romex secured to the cold water line with electrical tape.
I agree with you about having a disconnecting means for servicing and physical protection. When I finished my basement, I went ahead and installed a disconnect and ran PVC to the HWH from the ceiling. I only did this because I wanted to. I may be wrong, but I am pretty sure that it's still not required here, even if the panel isn't within sight.
Of course, ranges and dryers must be cord/plug connected, but hardwired Romex to wall ovens, cooktops, dishwashers, disposals and water heaters are still quite the norm here.
really, I don't see any problems with this install, in this kind of setting I just don't see much, if any, possibility for physical damage severe enough to damage romex. In Seattle we do have to sleave in flex.