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Old 05-03-2013, 07:30 AM   #1
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Heated holding tanks

We picked up our new 2104S a week ago and have been learning all of nuances of it. We bought it off the lot and took it with the options that it had. One of which is "heated holding tanks". I've seat he'd high and low(control panel) and cannot find any indication for control for the heating of the tanks. Not really worried about a freeze here on the Texas Gulf coast but am wondering about the control. Any ideas?
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Old 05-03-2013, 08:51 AM   #2
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I have a 2012 V-Cross 275 fiver and the heated tanks on/off switch is on the wall next to the fridge, it is on/off only, no control of temp. I live in SE Texas about 36 miles NNE of Houston and when it is going to freeze, not often, I go and turn it on and when it warms up I turn it off. Living were we do, I don't winterize.
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Old 05-03-2013, 09:03 AM   #3
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Heated tanks

Just checked again. No switches anywhere. Could it possible be a constant on? Not worried about temp control as I am with on/off.
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Old 05-03-2013, 09:21 AM   #4
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Very unlikely since they would drain your battery very quickly if you were boondocking. (They're usually not 120 volt.)

You should have posted this in the Rockwood area of this forum to more likely attract the attention of other Rockwood owners. (Maybe a moderator can move it.)
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Old 05-03-2013, 09:47 AM   #5
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It will be a switch somewhere with a lighted "ON" indication somewhere. If not, you most likely do not have them.
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Old 05-03-2013, 01:15 PM   #6
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Stupid is as stupid does. The switch is on the control panel. Had a piece of plywood leaning against the cabinet partially covering the control panel. Moved the plywood and there it was. Thanks for putting up with a blind newbie.
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Old 05-03-2013, 05:03 PM   #7
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Is ok. Happens to us all.
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Old 05-20-2013, 09:20 AM   #8
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Just a note. We're picking up a new Rockwood 8282ws this week. Salesman told me that when shwited on, the tank heaters automatically come on if outside temps gets below 40. ??? Just a thought. Nice safety feature for conserving the batteries when dry camping though.
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Old 05-20-2013, 09:35 AM   #9
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Just a note. We're picking up a new Rockwood 8282ws this week. Salesman told me that when shwited on, the tank heaters automatically come on if outside temps gets below 40. ??? Just a thought. Nice safety feature for conserving the batteries when dry camping though.
I don't know. When there's no chance of a freeze, that's a lot of energy used for nothing. Also, once they're on, I don't think they turn back off until the temp gets above about 50. You'll have to have really big battery banks to use those while dry camping.
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Old 05-20-2013, 11:03 AM   #10
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I don't know. When there's no chance of a freeze, that's a lot of energy used for nothing. Also, once they're on, I don't think they turn back off until the temp gets above about 50. You'll have to have really big battery banks to use those while dry camping.
barry. i thought the same thing. guess thats why there is an OFF switch. If most are like me, i keep a close watch on weather forecast when camping. So if Mr. Weather says low of 35 or below, i'll turn heaters on. Otherwise, I'll listen to the wife scream at the super cooled water the next morning. great way to start the day.
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Old 05-20-2013, 01:16 PM   #11
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UltraHeat, Inc. - FAQs

From the FAQ:

1) The heaters must must not be turned on without liquid in the tank.
2) The heaters must must not be turned on when temps will be above freezing.
3) The heaters will operate just fine using the truck's alternator when traveling.
4) They will maintain (and cycle independently) between 44 and 64 degree F - ON at 44 and OFF at 64.
5) Initially, they will be on for quite a while if you wait till 44 to turn them on since it will need to warm all that liquid up to 64 degrees. Turn them on when you think you might need them. It is easier to keep warm tanks warm than warm up a near frozen tank.

6) THEY WILL NOT THAW OUT FROZEN TANKS OR VALVES!
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Old 05-20-2013, 01:43 PM   #12
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Lou,
I asked some of these questions in the PrimeTime area. The PrimeTime representative talked to both the tank manufacturer and the heating pad manufacturer and the conclusion, with those tanks and heaters is that it's perfectly alright to turn them on for empty tanks. See post #6 here.

It also doesn't make much sense to say not to turn them on for temperatures above freezing and then to say that they should be turned on before the temps get down to 44!
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Old 05-20-2013, 02:03 PM   #13
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It also doesn't make much sense to say not to turn them on for temperatures above freezing and then to say that they should be turned on before the temps get down to 44!
You would think so wouldn't you. However if the temps are not forecast to go below 32 degrees; why would you turn them on at all?

Same logic seems to apply with empty tanks, I would think.
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Old 05-20-2013, 02:24 PM   #14
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Same logic seems to apply with empty tanks, I would think.
In the OP's case, one switch and 2-4 tanks, one of which could be an unused FW tank. Not much choice.
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Old 05-20-2013, 02:26 PM   #15
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In the OP's case, one switch and 2-4 tanks, one of which could be an unused FW tank. Not much choice.
You are right; it won't hurt and empty tank, but burning electrons unnecessarily irks me.
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Old 05-20-2013, 02:46 PM   #16
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on at 44 deg off at 64 deg. This is the temperature of the tank and contents, not the air temp.
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