established · computed
Safety probe 120 in flame overrides thermostat on accidental flame-out
Safety probe 120, positioned in flame 90, stays heated during normal operation keeping relay 130 inoperative; if the flame is accidentally extinguished during demand, probe 120 cools, relay 130 opens, and relay 130 overrides demand thermostat 10 to trigger the same start-up sequence.
Basis
- Confidence
- 0.90
- Published
- 19 Aug 2026
- Component
- safety-probe
- Source Ref
- US Patents — StartUp ShutDown For A Hydrogen Gas Burner #4,465,455
- Notebook Id
- 28
- Recorded At
- 2026-07-03T06:24:20.714Z
- Source Page Id
- 46
safety flame-out override