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Response to csziggy (Reply #40)

Fri Sep 14, 2018, 11:42 AM

41. I Wasn't Disputing It, Ziggy

I've heard of it happening as well. It's one of the reasons why manufacturers started engineering solutions. Trying to prevent bummers like what you experienced.

Even before sparkers or silica carbide hotspots, they started doing things like adding a mercury capsule where the heat of the pilot expanded the fluid enough to conduct a voltage. If that voltage failed (because no pilot heat, no conductance) the fail closed gas valve would shut. Some even used a bimetal that would shrink with no heat and mechanically pull back a bobbitt that would shut off the gas.

Those sort of things are still on the pilotless systems too to prevent the gas from flowing if there is no spark or hotspot.

Was just commenting that the kind of thing you experienced if far less likely because of these added safety features. That said, nothing is impossible.

Last point: Another problem is pilot lights is that they are waste of gas. The thing is burning 24/365. But, there is no real benefit from it. At least with the newer systems, there is zero gas flowing until one is actually using the range or oven.

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