I like it.  I need to go off and do some reading to see if it will fit=20
the needs but it looks promising.

--------------------------------
Long ago when men cursed and beat the
ground with sticks,  it was called witchcraft..

Today, it's called golf.

On 7/14/2013 3:25 PM, Mark Hanchey wrote:
> I think what you want is called a differential thermostat, used a lot in
> solar hot water heating. You can find lots of examples on google using
> differential thermostat.
> Lots of schematics also on google images.
>
> Mark
>

--=20
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