"Southern breeze" seems like an odd marketing name for a heater. Granted, a southern breeze in July at 1,000% humidity is pretty hot, but that's not the image conveyed by the phrase.
I'm always a touch amazed at the health hazard levels that were once acceptable in automobiles. The old air-cooled VW heaters were the same sort of thing: in theory, they just drew air from around the cooling fins on the motor; but, if you had any kind of exhaust leak (which didn't take long), you'd wind up pumping exhaust gases into the car. I used to call that design the "death heater."
Although, on a lot of older cars, there was probably enough in-car pollution from exhaust gases, burnt oil from oil leaks hitting the exhaust manifold, gas vapors from the carb or the leaky gas tank, etc., that a little extra from a gasoline-powered heater at your feet was trivial.
