On Sat, 8 Dec 2018 12:40:57 -0500, "Retired, yet another brain damaged,
troll-feeding senile Yankietard, blathered:

To *hold* the valve open only requires a small voltage & current. To
*pull* the valve open would require a larger voltage. That's why you
have to "Press & Hold" the manual knob to restart a pilot.

See here for more detail:
https://en.wikipedia.org/wiki/Thermo...pliance_safety

....and troll-feeding senile idiot no.1 appeared to swallow the abnormal
sociopathic attention whore's latest idiot bait, hook, line and sinker,
again! LOL