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December 04, 2016, 02:20:47 PM
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Topic: Heater Installation Question  (Read 1320 times)
JimmyC0215
Newbie
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Posts: 2


« on: April 14, 2016, 10:56:20 AM »

Can someone point me to the proper NEC code for the connection from the wall to the Heater itself. My heater says that all wiring must be rated for 105 degrees C. So far I have found that THHN is rated at 90 degrees in dry locations unless it is rated AWM (Appliance wiring material) which is 105 degrees. I don't know if that includes the conduit also. I wanted to use flex, the only flex I found rated for 105 is liquid tight titan hc and I have been unable to locate any locally.

Any help would be appreciated.

Jim
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juliah
Project Coordinators
Jr. Member
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Posts: 60


« Reply #1 on: April 14, 2016, 11:14:06 AM »

Hi Jim! Would you please give me some more information such as the voltage, kw, make and model of the heater you are installing please?
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JimmyC0215
Newbie
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Posts: 2


« Reply #2 on: April 14, 2016, 12:44:58 PM »

Juliah,
I'm not home right now so don't know the model. .I think the make is Nature.  It is definitely 24v 4.5kw.
Jim
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juliah
Project Coordinators
Jr. Member
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Posts: 60


« Reply #3 on: April 14, 2016, 02:24:34 PM »

Jim,

Just want to verify, do you mean that it is a 240v unit, and not 24v.

If the heater is 240V, then this sauna heater will draw approximately 18.8amps and you would need a dedicated circuit breaker in your panel for this amp draw.  And the wire size will be #10awg.
You should use a water tight whip or flex, from wall to heater.

As far as the heat rating, we would advise you to following the manufacturer's recommendation.

How did you find out about our forum community? We are always thrilled and appreciate the opportunity to help bathing enthusiasts. Any other questions, please let us know.

Julia
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