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What Type of Gas Fireplace Do I Have? Vent Type, Ignition and Model Number

By Fireplace Choice October 28, 2026 | B-vent direct vent electronic ignition fireplace types gas fireplace gas insert gas logs Honeywell identification IntelliFire IPI Mertik Maxitrol millivolt model number rating plate Robertshaw SIT Proflame Skytech vent-free | 0 comments

To order the right part or follow the right repair guide, you need three facts about your gas fireplace: how it vents, how it lights, and the brand and model on its rating plate. A flashlight and five minutes will find all three: one look outside, one behind the lower...

Honeywell and SIT 630 EuroSIT Fireplace Valve Troubleshooting

By Fireplace Choice October 28, 2026 | 630 EuroSIT Empire gas valves Honeywell Lennox Majestic millivolt Resideo SIT SmartValve Superior troubleshooting vent-free Vermont Castings | 0 comments

This guide covers three gas valve families: Honeywell millivolt valves (VS8420, VS8510, VS8520, VS820), Honeywell SmartValve electronic controls (SV9401 to SV9403 and SV9501 to SV9503), and the SIT 630 EuroSIT standing-pilot thermostat valve. Honeywell valves are found in Superior and Lennox Hearth fireplaces, older Majestic and Vermont Castings inserts and...

How to Replace a Gas Fireplace Gas Valve

By Fireplace Choice March 19, 2026 | DIY repair gas fireplace gas valve Honeywell how-to Maxitrol replacement Robertshaw SIT | 0 comments

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...

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