> amounts of Butane in it.  Varies from load to load.  BTW, did you (Or
 > probably your overeducated wife) know that what we call "Natural Gas" is
 > predominantly Methane?  OR that in Europe they use what is called (over
 > there) "Manufactured" gas which is almost indistinguishable 
 > chemically?
I knew that natural gas was methane, but didn't know about manufactured gas.
 
Many years ago, lots of small towns had "town gas" which was made from coal 
in local plants and piped around to the houses. I believe that it was used 
only for lighting, not heat, as they'd simply burn the coal in the house 
itself for that purpose.
--- FLAME v1.1
---------------