Are there any WVO designs that are passive heaters of sizable BTU output? There are kerosene heaters that by the amount of wick can be of sufficient size to be the equivalent of an average house furnace (50-100K BTU). The oil fired boilers and furances use various pumps/fans/etc. to create a mist with a flame front producing high BTU in a small area. The WVO is thicker; but, can preheated WVO be used in a wick system? This would seem to be simpler to design, safer to use, and would trade compactness for lower BTU/sq". The burner itself could even preheat the fuel as is done in a typical coleman stove passing the liquid fuel in a pipe across the burner flame. Well, maybe a small circulating fuel pump, safety/control circuits, and a pilot light would make this not quite passive yet close. So, are there any WVO designs that are passive heaters of 50-100K BTU or more output?
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