Tank heaters self regulated?

[Fuzion1278]

One simple quick question: I have a 2018 Fuzion 357 toy hauler. Are the tank heaters in the underbelly self regulated? In other words, can I turn them on when camping in colder weather and not worry about them getting too hot?

[Big 417]

I've been told yes. Don't however do this without Genny/shore power. I don't think your batteries would last long.

[ChuckS]

Each tank heater separately controlled thermostat...comes on at 47 degrees and off and 67 degrees

[Frank G]

The Trekwood parts list for your 2018 Fuzion shows' two tank heaters, only one is thermostatically controlled. So...???

[LHaven]

Originally Posted by Big 417

I've been told yes. Don't however do this without Genny/shore power. I don't think your batteries would last long.

I don't do a lot of cold country if I can help it, but I've always wondered if people who do, leave the heaters on when they're traveling at those temperatures?

[ChuckS]

In reference to the tank heaters and what Trekwood shows one shows thermostat and the 12x18 doesn’t...

However... this appears to be same 12x18 heater pad nad it is controlled via a thermostat...Ma6nenthey make a tank heater without a thermostat but to me that would stupid...

https://www.recpro.com/rv-tank-heater-pad-12-x-18-12v/

[ChuckS]

I’ve traveled in temps at 15 below zero with our Alpine. It does not have heated tank heaters... I wasn’t able to dump so I ran the furnace and relied on furnace belly heat to keep tanks from freezing till I got into warmer weather.

And yes... the tanks will freeze at 15 below when towing at 60mph . Learned that lesson several years ago coming out of a snow storm in the mountains during an elk hunting trip with one of my toy haulers.

[TheLoveClaw]

Morning Everyone,
I have a 2019 Impact 28V. It has heated enclosed tanks, but I can't find any switches for it to make sure they are on. Any idea how I operate the tank heaters? We have an end of the season dry camping bash this weekend and temperatures will dip in to the teens.
Thanks

[chuckster57]

If you don’t have switches then you have a heated underbelly that relies on the furnace and ductwork to “heat” that area.

[TheLoveClaw]

Thanks Chuckster, so I assume as long as the heater is on I'm good....

It's supposed to dip into the teens tonight as well and I was worried about filling the tanks before heading into the mountains.

[JJaxon]

Originally Posted by ChuckS

Each tank heater separately controlled thermostat...comes on at 47 degrees and off and 67 degrees

I have 3 switches for 3 tanks. They appear to be a lighted switch, although I have not turned them on. Told the kids if they touch em they sleep outside....

My question is, in a cold use scenario, with the temps you state for on/off, do the switches light up when on, and go dark when it warms and goes off? Just curious if this is an indicator switch, or just an on/off switch.

[LHaven]

Originally Posted by JJaxon

I have 3 switches for 3 tanks. They appear to be a lighted switch, although I have not turned them on. Told the kids if they touch em they sleep outside....

My question is, in a cold use scenario, with the temps you state for on/off, do the switches light up when on, and go dark when it warms and goes off? Just curious if this is an indicator switch, or just an on/off switch.

It's one of those switches where the light means, "You left me on again, dummy!"

[LHaven]

I know this is is an old thread, but this question probably doesn't deserve a thread all its own.

I don't do cold country traveling if I can help it, so I've never used my tank heaters. It just occurred to me that I have three heater switches -- fresh, gray, and black -- but four tanks (two grays). Is it just taken for granted that the gray switch controls heaters on both gray tanks?

[chuckster57]

Originally Posted by LHaven

I know this is is an old thread, but this question probably doesn't deserve a thread all its own.

I don't do cold country traveling if I can help it, so I've never used my tank heaters. It just occurred to me that I have three heater switches -- fresh, gray, and black -- but four tanks (two grays). Is it just taken for granted that the gray switch controls heaters on both gray tanks?

I would figure if you have 2 grays and one switch, they would be wired as one circuit. Only way to verify would be to either drop the edge of the coroplast and look or put a DC amp clamp on a known single heater switch and then the suspected double switch and look for an increase in draw.