Those era dynasty's will have a separate LP furnace and the fans on the furnace run from your battery 12 volt. Also for the other poster, most coaches with a heat pump option from their AC will also have another form of heat that can work from 12 volt. It will be a propane heater with a 12 volt fan or an upgraded hydronic heater that works on electric, diesel, or some rare newest models on propane. The fans from these units run on 12 volt.
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Craig
2020 Winnebago View 24D
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