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Old 11-30-2015, 01:31 AM   #1
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on/off switch for holding tank heaters

Was under my 2015 24R installing Hellwig sway bar. Noticed heating pad on black and grey water tanks, Never mentioned on my walk thru last year when purchased. Is there a switch for these? Do they run on 12 volt or 120 v or both?
Will they drain batteries boondocking in cold weather?
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Old 11-30-2015, 05:27 AM   #2
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Was under my 2015 24R installing Hellwig sway bar. Noticed heating pad on black and grey water tanks, Never mentioned on my walk thru last year when purchased. Is there a switch for these? Do they run on 12 volt or 120 v or both?
Will they drain batteries boondocking in cold weather?
They should have switch to turn them on inside. They are on there own thermostat. Should come on at 40 degrees and off at 60 degrees. Most are 12v and will eat your battery up boondocking.
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Old 11-30-2015, 07:28 AM   #3
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Originally Posted by Tommy G View Post
Was under my 2015 24R installing Hellwig sway bar. Noticed heating pad on black and grey water tanks, Never mentioned on my walk thru last year when purchased. Is there a switch for these? Do they run on 12 volt or 120 v or both?
Will they drain batteries boondocking in cold weather?
The switch is located in the bank of switches with your water pump and others. Should be labeled Poler or Arctic. I do believe it is 12 volt. Not sure of the power draw.

Here is a thread with a little more info.
Tank heat pads for winterizing?
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Old 11-30-2015, 08:13 AM   #4
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Tank heaters draw 6-7 amps. As mentioned, enough to drain a battery quickly if on for any length of time.
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Old 11-30-2015, 12:29 PM   #5
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What if your on shore power?
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Old 11-30-2015, 12:32 PM   #6
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on/off switch for holding tank heaters

Quote:
Originally Posted by Tommy G View Post
Was under my 2015 24R installing Hellwig sway bar. Noticed heating pad on black and grey water tanks, Never mentioned on my walk thru last year when purchased. Is there a switch for these? Do they run on 12 volt or 120 v or both?

Will they drain batteries boondocking in cold weather?

My tank heater switch is the one in this pic with the red light in it (when ON). It is NOT labeled in my Wildcat.
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Old 11-30-2015, 12:33 PM   #7
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I've got a digital readout meter wired direct to battery....see no voltage drop on meter when turn'n on
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Old 11-30-2015, 12:35 PM   #8
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I've got a digital readout meter wired direct to battery....see no voltage drop on meter when turn'n on

Is the temp of the tanks below 40 or so degrees?


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Old 11-30-2015, 12:36 PM   #9
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Old 11-30-2015, 12:37 PM   #10
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