On Sun, 19 Dec 2004 08:28:21 -0500, Bob Engelhardt
wrote:

Bruce L. Bergman wrote:
... Propane can
easily make a puddle of unburned gas that stays over the water surface
and builds up, and when it finds an ignition source it can suddenly
get VERY exciting.

YES! What a great idea! Much cool-er than the "...floating flame
effect" that Jerry was talking about. Depending upon the size of the
pond, you could have pipes at random locations, giving off fwoosh'es or
whoomp's of random intensities at random times. Could be a neat show.

It won't take much of a breeze to create problems, though. And the
ignition source might be a challenge.

Hey, Chipmaker could do this in his pond, integrated with his fountains.

Boy, that gets the teenage boy in me really excited.

Bob

Oh yeah, I forgot to mention that wind -was- a problem during my
experiments.

As for ignition, I was planning to fasten a peizo sparker to the end
of a rod. I wouldn't leave the flame on all the time, only during
parties and whenever I was going to be hanging out in the area, so
thrmocouples and auto-lighting and such wouldn't be an issue.

pics of experiments:
http://www.mindspring.com/~mikepatte...ges/pond/fire/

go up to the parent directory to see pics of the pond area

Mike
Mike Patterson
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"I always wanted to be somebody...I should have been more specific..." - Lily Tomlin