On most rigs the tanks are surrounded by the heating duct. So when your furnace is on the tanks are being heated. Hope this answers your question.
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1997 Triple E Empress, Freightliner Chassis, CAT 3126 w/ 275 horse's.
MD 3600 Tranny, 2011 Ford Escape Hybrid w/Blue Ox tow bar and Roadmaster Base Plate.
Amsoil Synthetic Oil only for my baby.
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