Thermocouple - What's this?

[jteneyck]

It’s a bi metal thermal actuated set of electric contacts. Heat it, it snaps open and then closes when cooled ( hopefully). Switch is placed where desired and wired back to the gas valve. Accomplishes the same thing as your but uses separate components and is resettable

Ah, clever.  Thanks for the education.  Your knowledge and willingness to share it is much appreciated.  

John

[blackhat]

Folks doing that is what makes this thing work. I’m just trying to pay back for what I’ve gotten from here.