Third paragraph down explains it. CC'ing list as well.
http://www.innerauto.com/Auto_Part/Thermostat/
--- On Sat, 4/10/10, Kirk Hargreaves <khargreaves2@gmail.com> wrote:
Thanks, I had no idea. I always thought it was only the spring in the
thermostat that compressed and released under heat.
On Sat, Apr 10, 2010 at 3:02 PM, Ron Soave <soavero@yahoo.com> wrote:
Yes. There is a fluid in the temperature bulb. The temperature raises, wax
melts, valve moves to open. Temperature drops, wax solidifies. They used to be
called "wax valves", still are in "the biz".
--- On Sat, 4/10/10, someone anonymous wrote:
Ron,
There is a wax component in a thermostat? Did I read that right?
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