Dear Mr. King.
                        I happened upon your post and offer the following
for your consideration:
While there are a number of procedures that would yield acceptable results,
I offer one that has been successfully employed by one of our "tinkering"
technicians.
                Obtain two of the "extra-large" soft drink cups (closed-cell
styrofoam) for use as the main enclosure. and retain the plastic cap that
comes with such a drink.  He uses a conventional 1 qt. "mason-type" canning
jar as your CS generation vessel.
                Using scissors or xacto-type knife, shape  the plastic lid
to a geometry that will fit around the sides of  your electrode-holding
device/block.   Fill the  jar with DS water to the bottom of the jar neck
and place in a micro-wave oven and select 3 minutes at "high" setting.  This
should result in a temperature between 180 and 195 degrees.  Place the
heated water, immediately, within the styrofoam containers (previously
stacked, one within the other) and place the "customized" lid on top.
                This system has been utilized by several of our lab
personnel in their "home brewing" endeavors relating to CS generation----and
successfully so for several years.
                If increased insulation around the sides is desired,
newspaper folded down to approximately 6" width and wrapped around the jar,
works fine.  However, this is seldom done at present.......as the thermal
preservation offered by the cups, alone, is quite adequate-----for 30
minutes;  which is longer than the generation cycle for the 5 ppm that most
are generating.  This arrangement is quite effective, even when using
small-volume aquarium pumps for solution aggitation.  This offers a
"low-tech" method for utilizing heated water in CS generation.
                                Sincerely.  Brooks Bradley
        p.s.  If you have objections to using "microwave" technology,
substitute heating in a pyrex pan/container  and heat to desired
temperature.  Allowing water to come to a beginning boil has not caused any
compromising effects in the resulting CS solutions.

 Steve King wrote:

> >>Heating the water during processing also stirs things up a bunch, but
> it does introduce a whole host of variables that are difficult to
> control and not well understood.
>
> Hi all
>
> I'm new to the list and I have already found it
> very very valuable. So here's a quick question
> about heat. . .
>
> I have found when using DC (777SE) that ambient
> temperature seems to greatly affect production
> rate. On a cold day, the process takes a lot longer.
>
> Any ideas about how to keep the process warm
> without introducing more variables.  For instance,
> I would hesitate to put the glass CS vessel on a
> hot plate because the elements in the hot
> plate will introduce fields into the solution.
> What about a large container of water on
> a heating pad with the CS jar elevated (on
> glass) inside , like a double boiler?  e.g.:
>
>                                lid
>                            CS jar
>               non-conducting spacer
>             large container of water
>                       heating pad
>
> In general, how far from the heating pad
> would the CS jar need to be to greatly
> reduce the amount of electrical fields
> that the solution is subjected to?
>
> thanx!
>
> Steve King
>
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