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

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?

TIA.... bILL

Just take out your set of #60 to #80 drills and start with the
smallest until the flame looks right. I did this for a camp stove that
was made to run on propane at the tank pressure. With a regulator
between the tank and stove the flame was quite small. Just going up
one drill at a time it took about 30 minutes to get the right flame.
ERS