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03-15-2018, 07:16 PM
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#1
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Junior Member
Join Date: Jan 2018
Posts: 5
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Tank heater switch
Does any one know what tank this is for? Thanks
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03-15-2018, 07:19 PM
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#2
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Senior Member
Join Date: Jan 2017
Location: Kalamazoo
Posts: 2,136
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when someone says tank heater switch, I think 12 volt holding tank heaters for cold weather.
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03-15-2018, 07:23 PM
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#3
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 18,591
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Who knows? They may all be different.
What unit do you have?
On my Wildcat, one tank heater switch is rumored to turn on the tank heater for all 4 of my tanks --- 1 fresh water, 1 black water, 2 gray water tanks.
__________________
FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 40; Booked for 2022 = 70 |
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03-16-2018, 01:31 AM
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#4
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 28,224
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Have no idea without a pic.
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Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.) 
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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03-16-2018, 05:06 AM
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#5
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World Wide Wanderer
Join Date: Feb 2016
Location: Sprung Leak, NC
Posts: 1,700
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What brand and type of RV do you have? On my Coachmen Concord the tank heater switch turns power on to all three heater pads (2 gray and one black tank). Also take note, that at least on my unit, the pads are thermostatically controlled and won't actually come on until the temps drop below ~45°F. I use an non-contact infrared thermometer to check if they are actually working.
Aaron 
__________________
Aaron & Rhonda
wahoonc & Airangel60
2016 Coachmen Concord 300DS
2015 Fusion Hybrid following along
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03-16-2018, 06:24 AM
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#6
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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On our V-Lite the (1) switch marked "Tank Heaters" turns on (4) tank,(3) elbow,and (2) strait run pipe Heaters! After deployment they are Automatic On/Off controlled by Temp!  Youroo!! 
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03-17-2018, 08:01 AM
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#7
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Junior Member
Join Date: Jan 2018
Posts: 5
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tank heater switch
The TT is a 2017 Rockwood 2715VS. Does the tanks half to be full before turning switch on? Does anybody know what tank, fresh,.
gray or black.
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03-17-2018, 08:12 AM
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#8
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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The Heat Pad MFG says,Liquid needs to be in tanks,so if only (1) switch for several tanks I would take that to mean "Liquid in All Tanks"! Youroo!!
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03-17-2018, 08:20 AM
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#9
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World Wide Wanderer
Join Date: Feb 2016
Location: Sprung Leak, NC
Posts: 1,700
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Quote:
Originally Posted by youroo
The Heat Pad MFG says,Liquid needs to be in tanks,so if only (1) switch for several tanks I would take that to mean "Liquid in All Tanks"! Youroo!! |
Find out which brand heater pads you have. The ones on my Concord are the Thermaheat brand and they say you don't have to have water in the tank(s). According to the manual the thermostat kicks in at 45°F and off at 67°F. The Thermaheat pads are made by LaSalle Bristol.
Aaron
__________________
Aaron & Rhonda
wahoonc & Airangel60
2016 Coachmen Concord 300DS
2015 Fusion Hybrid following along
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03-17-2018, 08:22 AM
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#10
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Senior Member
Join Date: Apr 2016
Location: Port Charlotte Fl/Hinsdale Ma
Posts: 4,823
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Quote:
Originally Posted by camping now
The TT is a 2017 Rockwood 2715VS. Does the tanks half to be full before turning switch on? Does anybody know what tank, fresh,.
gray or black.
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Think about your question. What would stop the freezing with a 1/2 full tank? 
The heaters won't thaw a tank. They help prevent freezing.
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03-17-2018, 08:28 AM
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#11
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Junior Member
Join Date: Jan 2018
Posts: 5
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Thanks,new TT for us,trying to figure out all the new thing in it. Hope I don't need tank heaters
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03-17-2018, 09:24 AM
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#12
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Senior Member
Join Date: Apr 2016
Location: Port Charlotte Fl/Hinsdale Ma
Posts: 4,823
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Quote:
Originally Posted by camping now
Thanks,new TT for us,trying to figure out all the new thing in it. Hope I don't need tank heaters
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Not a problem just stay south of the Mason Dixon line in the winter. WAY south this year. 
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03-17-2018, 12:23 PM
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#13
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Quote:
Originally Posted by wahoonc
Find out which brand heater pads you have. The ones on my Concord are the Thermaheat brand and they say you don't have to have water in the tank(s). According to the manual the thermostat kicks in at 45°F and off at 67°F. The Thermaheat pads are made by LaSalle Bristol.
Aaron |
The Heat Pads used on Rockwood as the OP has and Flagstaff as ours is, use "UltraHeat Products"! The MFG says "DO NOT use without Liquid in Tanks/Valves/Pipes"! This information is on their Web Site! Youroo!!
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01-23-2021, 04:09 PM
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#14
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Junior Member
Join Date: Jun 2020
Posts: 4
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Can the heated tank switches on with little or no liquid in the tank and why 2 switches? We have a FR Salem 2020 trailer.
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01-24-2021, 07:30 AM
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#15
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by wahoonc
Find out which brand heater pads you have. The ones on my Concord are the Thermaheat brand and they say you don't have to have water in the tank(s). According to the manual the thermostat kicks in at 45°F and off at 67°F. The Thermaheat pads are made by LaSalle Bristol.
Aaron |
I leave mine on, I’m plugged in at home so no problem with my 12volt system, I’m also a believer that having them on helps with heat being they are on the built in tanks being a motor home not the same as a travel trailer which many have there tanks exposed. I agree with Aaron , I don’t need liquid in them , but I do keep some in. Read or look up what is recommended for your brand of RV,
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Coachmen M/H
Concord
2018 / 300 DSC
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