On Fri, 10 Dec 2004 21:46:40 -0700, "Bill P" calmly
ranted:

SNIP

Well, you use less propane -- the orifice is MUCH smaller. But I always
thought a gas stove with 12kbtu burners had 12kbtu burners whether it
was hooked to NG or propane. Go figger.

Grant

Yes, Grant, the orfices are much smaller for CNG. I've been looking for
a long time to find out those sizes as I want to convert a nice little BBQ
to natural gas and nobody can give me a size for the new hole. I'd
think there's a formula or chart to use to go from a given size propane
orfice to go to natural gas....

can anybody help?

Call your local gas company or a conversion supplier and ask one of
their technicians. Or google for an answer:
http://www.google.com/search?num=100...ane+to+natural


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