Look at figure 135 for trucks
http://chevy.oldcarmanualproject.com/accessories/1951am/51aim57.htm

A real cigarette lighter element is a spiral of wire that can eventually rust with usage. The element can bridge, short out and has been known to catch fire at times if it doesn't run your battery down first. Always look at the element before you push it in to heat. Back when everybody smoked, it was common knowledge. I would add an inline fuse or remove the element.

https://www.stovebolt.com/ubbthreads/ubbthreads.php/ubb/showflat/Number/996474

Last edited by buoymaker; 08/22/2022 11:15 PM.

"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."