How does a thermal coupler work?

Answer

The only thermal coupler I found was in my stove burner. No, a TC is used to provide a backlight to get temperature readings from digital devices. (Is that right?)
1 Additional Answer
The thermal coupler, in your water heater or furnace, works by having a expansion valve inside of it. The expansion valve is activated by heat and directs the heat.
Q&A Related to "How does a thermal coupler work?"
1. Disconnect the thermocouple from the thermostat. Leave the other end attached to the gas valve. The end you disconnect should have a silver color, while the other end should be
http://www.ehow.com/how_7455464_test-thermal-coupl...
Generally it should be made from brass.
http://wiki.answers.com/Q/What_is_a_thermal_couple...
Not a trick question, it's something that actually exists. Has to do more with HVAC than electrical. It's like a transfer junction for a temp sensor. Hopefully, he'll still get the
http://answers.yahoo.com/question/index?qid=200608...
Dan, I don't what type furnace you have? Older furnaces have a standing pilot light (There is a pilot flame that is burning constantly). Newer furnaces have an electronic ignition
http://en.allexperts.com/q/Heating-Air-Conditionin...
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