For your Craigslist consideration today here's a vintage SUPREME under-dash cab heater for $120 cash FOB Pomeroy WA.
Heat Wave Twin Flow, this 1930's under-dash vehicle heater has plenty of style and features to land it in the upper tier of the products for it's time.
Three door louver bezel also rotates for directing the heated air.
Fan motor has two impellers; conventional pusher fan for air travelling through the core and out the louvers, and also a squirrel cage fan in a plenum for plumbing into your defrost ducts.
Lots of art deco styling with the chrome, two-tone paint, and Bakelite knobs.
I opted to forego this beauty for a more simple Harrison in my hot rod.
Sold as-is. No testing performed.
I do wander over to the L/C area from time to time and could bring it along if that helps.