Hi all,

On Wed, 1998-08-05 14:31:37 EDT, GMBulley@aol.com wrote:

> ...
> Both JC Whitney and (many) camping store sell self-adhesive, temperature
> dependant stickers. They are actually designed for voiticle (verticle) tanks,
> but would give you *some* idea of what's in the tank.

According to my experience this doesn't  work at all.   The idea is that
the state transition  from the liquid to gaseous phase caused by propane
consumption is acompanied  by a temperature drop  in the  gaseous phase.
But   either a stove doesn't draw   enough  propane per  minute for this
effect to be measurable by such  a crude device or  the metal of the gas
tank does not clearly enough carry on this steep temperature gradient to
the outside.  In any case forget these stickers :-(

I hope this helps.

Sincerely
 Rainer

 ----------------------------------------------------------------------
| Rainer M Woitok                  | Phone: (+49-9131) 85-7811, -7031  |
| Regionales Rechenzentrum         |                                   |
| Friedrich-Alexander-Universitaet | Fax  : (+49-9131) 30 29 41        |
| Martens-Strasse 1                | Telex: d 629 755 tf erl           |
| D-91058 Erlangen                 |                                   |
| Germany                          | Mail: Woitok@RRZE.Uni-Erlangen.DE |
 ----------------------------------------------------------------------