Not sure about the Tuscany.
On my Challenger there is a furnace duct which heats the holding tank compartments and a couple of storage compartments. The duct is opened ended without a grate and provides heat whenever the furnace is running. I only have one furnace and do not have heat strips in the AC units. Since my unit has heater ducts in the floor and AC ducts in the ceiling I imagine heat strips with the AC would not supply the tank storage area.
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Dave
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054
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