"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message
. 3.70...
"Harold and Susan Vordos" fired this volley
As I recall, they are relatively simple devices,
gasoline being the fuel.

"Relatively simple" goes way beyond the complexity of them.

They're a "doughnut" shaped burner/heater that goes in the bottom of the
can. There's a single baffle that seals off the gallery in the doughnut
between the downdraft tube and the chimney.

A drip of gas falls onto a grate in the down tube, burns, and shoots the
flame all the way around the doughnut to the chimney side, where the
updraft keeps the action going.

The ones I worked in 'Nam didn't have any moving parts except the spigot
valve to control the gas drip. This "new" one has a swing-out igniter
pot in the chimney designed to help establish the updraft.

LLoyd

The heaters (known as "Herman Nelson") we had in Paradise all featured the
swing out door. At one LZ (Pony) I appropriated a HN from a neighboring 105
battery. We constructed a shower stall of 105 ammo boxes topped with a
corrugated can and HN- w/ pull chain showerhead in the bottom. Payed the
locals 1/2 buck to fill it everyday. That was gracious livin'.