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Hi Joe E. Dees -
>What's a thermostat? A rheostat?
A thermostat is a switch/thermometer combo, that thing on the wall in
most centrally heated buildings, that you adjust, and that regulates the
It used to be a simple mercury switch on a thermal coil, but I suspect,
especially in these days of mercury hysteria, more and more of them are
digital switches coupled to voltage controls.
Anyway, there might be a rheostat in those.... The mercury switch ones
were mostly mechanical.
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