Stubby wrote:
Very interesting. Last Winter I call the gas company because my
burners were giving a very orange flame. They sent a guy out within a
half hour and said that's a CO problem! When the guy arrived, the
flame had gone back to normal blue.

But they were talking of gas shortages back then and I wondered what
do they add to the natural gas supply to "thin it out". Propane was
the answer and that is more expensive and burns hotter than natural
gas, so it didn't make sense. Water vapor makes more sense.


Water vapor would make no sense. Condensed it takes up very little
space and it would likely condense along the way and air mixed with natural
gas would only cause problems. On the other hand air could be used (cheap
and it would not likely condense, but it would cause a hazard if the ratio
got too high. There is nothing I can think of that would work and would
not cost more than natural gas. Also the regulators would take a very dim
view of any such stuff.



--
Joseph Meehan

Dia 's Muire duit