water heater cord and plug

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kd5ufw

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okay, can someone help me interpet 422-16(A), or show me where the code allows or doesn't allow the use of flexible cords w/water heaters. thanks in advance.
 
kd5ufw said:
okay, can someone help me interpet 422-16(A), or show me where the code allows or doesn't allow the use of flexible cords w/water heaters. thanks in advance.
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I dont have my code book with me atm, but, here in my county cord and plug on a water heater is permitted, but one county away I must hardwire the water heater in. So, in my case it is a local thing.
 
kd5ufw said:
okay, can someone help me interpet 422-16(A), or show me where the code allows or doesn't allow the use of flexible cords w/water heaters. thanks in advance.
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I can't see how a water heater would meet the requirements of 422.16(A).
There shouldn't be frequent interchange or vibration (1), or a need for ready removal for maintenance (2) . Also, it needs to be "intended or identified" for cord connection.

See also 400.8(1)
 
The '05 NECH has this to say:

It should be understood that a cord-connected appliance is required to be specifically designed, mechanically and electrically, to be readily removable for maintenance and repair.
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IMHO, this type water heater meets the above opinion:
ce110.jpg


This type...not so much:
electric-water-heater-500.jpg
 
JohnJ0906 said:
I should add, some gas water heaters have a factory installed cord to plug into a receptacle. I've never had a problem with these.
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Most residential gas waterheaters come with a factory installed cord. The commercial gas ones that I have seen do not come with a cord.
 
They have an electronic ignition circuit and require power. Some are hard wired by the contractor and some contractors install cords.
 
I just installed 2 gas fired water heaters...1 had the typical "long match stick" for lighting the pilot...the other ~ basically a BBQ ignition....I immediately thought "spud gun".
 
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