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How to Replace a Gas Fireplace Gas Valve
The gas valve is the heart of your gas fireplace. It controls gas flow to both the pilot and main burner, responds to thermostat and remote control signals, and contains critical safety mechanisms. When a gas valve fails, the fireplace either won't light, won't stay lit, or produces erratic flames...
How to Replace a Gas Fireplace Thermocouple: Step-by-Step Guide
The thermocouple is the copper-lead sensor in your gas fireplace's pilot flame that keeps the gas valve's safety magnet open. When it wears out, the pilot lights while you hold the knob in but goes out when you let go. Gas fireplace thermocouple replacement is one of the simpler repairs:...
Gas Fireplace Pilot Light Won't Stay Lit: Causes and Fixes
On a standing pilot (millivolt) gas fireplace or gas log set, the pilot stays lit only while the pilot flame heats the thermocouple enough to hold the gas valve's safety magnet open. When the pilot lights while you hold the knob in but goes out when you let go, Heat...
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How to Replace a Gas Fireplace Gas Valve
Mar 19, 2026 -
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