Description
Protect your gas‑fired furnace, boiler, or water heater from dangerous flue gas spill scenarios with the Field Controls GSK‑3 Thermal Safety Switch (P/N 46086400). Built for residential and light commercial use, this manual‑reset safety device is compatible with both millivolt and 24 VAC systems. It detects heat from flue gas spillage (a result of blocked vents, down drafting, or broken chimneys) and safely shuts down the burner until manually reset — giving you peace of mind and added safety.
Specifications:
- Contact Material: Gold
- Amperage: 24 VA
- Voltage: 24V, mV
- Switch: SPST
- Position: Normally Closed
- Switch Closes: Manual Reset
- Switch Opens: 180 Degrees F











