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Mine are labeled. Left to right: Fresh, Grey, Black.
But no real 100% proof they are labeled correct. So, we're currently camping in colder weather and I just flipped on all 3 of them and forgot it.
I suppose, if you can locate the tanks, turn one switch on, wait a while, crawl under the camper and feel which one is warm. Although with the chloroplast on mine, I have no clue where the tanks are actually located.
But option, turn all 3 on and be on your way. They won't overheat. They have a thermostat built in.
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Who you are right now is a sum total off all you use to be.
2019 Montana High Country 375FL
2014 Chevy Silverado Duramax, 6.6L Dually
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