-> Where does Methane produced from organic waste rate?  Are any of
-> these fuels interchangeable?  Have a good one. Take care
You've doubtless seen where Jim Dunmyer and I discussed methane and
natural gas.  They are substantially the same thing with minor chemical
differences.
The other gasses are all frequently interchangable if the device using
them is adjustable for mixture and can accept the appropriate pressures.
Propane and Butane need to operate at approximately four times the
pressure of natural gas, and require a MUCH leaner mixture for complete
combustion.
 ^..^
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