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SIT 820 Nova Millivolt Valve Troubleshooting
The SIT 820 Nova mV is a millivolt gas valve for standing pilot gas fireplaces, log sets and space heaters. The pilot burns all the time and its thermopile powers the valve, so the fireplace works without house power. Your fireplace's parts list may give the valve under the fireplace...
Robertshaw and Dexen Standing Pilot Valve Troubleshooting
Robertshaw and Dexen make low-capacity millivolt gas valves for standing pilot fireplaces and gas logs. Empire, for example, fits a Dexen millivolt valve to its VFSR vent-free log burners, and we carry Dexen / Robertshaw replacement valves under several part numbers (listed below). The pilot's thermopile powers the valve, so...
Heatilator Fireplace Parts Guide: Finding the Right Replacement
Heatilator is one of the oldest and most recognized names in the fireplace industry. Originally founded in 1927, the brand now falls under the Hearth and Home Technologies (HHT) umbrella, which also manufactures Heat N Glo and Quadra-Fire products. Millions of Heatilator gas, wood, and electric fireplaces are installed in...
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...
Recent Post
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SIT 820 Nova Millivolt Valve Troubleshooting
Oct 28, 2026 -
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How to Replace a Gas Fireplace Gas Valve
Mar 19, 2026
