sir veza, It's really not the vapor pressure at all, it's that butane and propane both have a much higher energy content than natural gas and need more oxygen to burn cleanly (less gas, more air). Therefore, the "jet" orfices for butane are smaller than for methane (natural gas) and those for propane a bit smaller yet. The actual "pressure" (not vapor pressure but line pressure) is controlled by the regulator that hooks up to the propane tank and feeds into the lines to the stove or other "gas" appliance.
ALL the problems of excessive heat when cooking with propane are due to the much higher energy content of propane compared to the natural gas that most of us are familiar with. It's just a hotter fire!
(This post was edited by mazbook1 on Feb 20, 2012, 8:16 PM)
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Post edited by mazbook1
(Enthusiast) on Feb 20, 2012, 8:16 PM
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