Wall heater connected with flexible cord

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JoeNorm

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I have some wall mount heaters that have very little clearance behind them (about half inch). I cannot fit metal flex back there. Is a flexible cord permitted in this case?
 
If its not subject to physical damage and you are connecting to a receptacle yes you can, however the appliance has to be reasonable easy to remove for servicing purposes for this to apply.
 
When this has happened to me and I used nm I just put a longer push in connector not set screw or button in and it protects it the 1/2 in of romex. If you're using SO I don't think you can use it for that and for sure you can't use it in a wall.
 
The wall heaters we used to get that were similar to these had their own factory flexible cord. These new ones do not come with one but still have the low clearance that requires it.

Isn't a flexible cord always substituting fixed wiring to a certain degree? Isn't that sort of the point?
 
Looking at 400.10, I'm in agreement with Post #5, not permitted.
 
AC\DC said:
Can’t you just use nmb exposed? Seems like it’s not subject to damage.
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That would make things easy. I didn't think I could use NMB that way. There would be an exposed whip living behind the heater. The funny thing is these heaters are common. HD carries similar and my supplier sells them. So there must be a reasonable way to wire them.
 
I never wired one like I mentioned but it seems no different from the normal exposed wire I see and do sometimes for water heaters.

Just because HD sells them means nothing.
Are quality of products go down every year.
I recently have ran across unlisted light fixtures and the big stores. Use to be only black market Amazon you would have to worry about.
I probably should have opens my book and read instead of throwing an idea out that may be not correct. I’ll find out after my 4 cup of ☕️
 
These are made in Canada. I called tech support and got French speakers who had no idea what I was talking about. They just said something like "you just take the power from the wall and connect to the heater, it's very easy"
 
NM would work great! I didn’t know it was ok to fly out of the wall with it. But it is protected behind the heater
 
letgomywago said:
When this has happened to me and I used nm I just put a longer push in connector not set screw or button in and it protects it the 1/2 in of romex. If you're using SO I don't think you can use it for that and for sure you can't use it in a wall.
Click to expand...

You could also mount a 1/2" close nipple on the back of the heater with locknuts. And have bushings on both ends of the nipple to protect the NM.
 
It must be wired off the wall and then mounted onto its bracket. So you end up with a curled whip of wire behind heater that’s not in the wall. Are we saying this is acceptable?
 
Why do you refuse to provide a link or model number to help everyone understand what you are tying to accomplish?
 
11.5.2 CON Premium 208–240 V models, hard-wired connection

CON Premium 208–240 V models have a junction box located at the right rear of the unit. Included in the junction box are wires with wire nuts attached. f Install a ½˝ ROMEX clamp in the knockout of the junction box at the rear of the unit to prevent the power cable from being pulled out of the wiring block during operation. f Cable must be routed from a circuit breaker of suitable size, through the ROMEX clamp, and connected using the wire nuts in the junction box of the unit. See section 15.3, “Wiring diagrams”, pg. 13.
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120 V hard-wired connection

Trim the power cable so it leads directly to the heater connection socket. - Ensure that, after trimming the power cable, the heater can still be removed from the wall without issue. Trim the power cable by cutting off the plug. Connect the trimmed end of the power cable to a suitable appliance junction box. The appliance junction box must be connected to a circuit breaker of suitable size. See section 15.2, “Data table”, pg. 13
Click to expand...

Not sure what a "suitable appliance junction box" might be and where it would be located (behind the heater?), but it looks like they do allow removing the plug from the cord on 120V models and running the cord directly into a J box. I assume this could be construed to allow removal of the heater from the wall so flex cord would be allowed?

What's the difference between the 208/240 volt models and the 120 volt model that you can't use a hard wired connection?

-Hal
 
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