Originally Posted by RattyFather
Does anyone know much about these and what they may be worth?
Electric heater for vehicles (mainly trucks) old enough to not have heat or for auxiliary heat. They were sold in JC Whitney back in the day. If it works it might have some value to someone wanting to restore a vehicle the way it was 50-60 years ago, or to use in a farm truck, etc.
I wouldn't "restore" it-any value would be as an original survivor, IMHO.