OXYGN DEPTN SENSR LP MV

When it comes to vent-free gas appliances, the atmosphere in your home should be warm and inviting — not compromised. The Real Fyre Oxygen Depletion Sensor and Pilot Assembly (ODS-0004) is a precision-engineered safety component designed to monitor your indoor air quality and shut off your Liquid Propane appliance the moment oxygen levels dip below a safe threshold. Because the best fireplace experience is one you walk away from comfortably.

This LP millivolt pilot assembly is built around a fail-safe Oxygen Depletion System (ODS) — a passive, always-on safety mechanism that requires no external power to do its job. In a millivolt system, your appliance generates its own electricity through the thermopile, and this unit delivers a robust 750 mV thermopile output to ensure consistent, dependable valve operation.

Installation flexibility is built into the design. The assembly features a 32-inch thermocouple wire and a 24-inch thermopile wire, giving technicians ample reach within the burner assembly. The 3/8" x 24 UNF gas connection and M8 x 1 thermocouple connection nut are standard fittings that integrate cleanly into compatible vent-free burner configurations.

Compliance matters, and this sensor takes it seriously. The ODS-0004 meets both European and CSA norms, reflecting the kind of rigorous safety validation you'd expect from a premium hearth component. Whether you're a hearth professional sourcing replacement parts or a discerning homeowner maintaining a quality installation, this is a component you can trust.

Compatibility Note: The ODS-0004 is confirmed compatible with vent-free series gas log burners equipped with a -12 or 12M valve, with or without remote. Compatibility with other valve configurations may vary — we strongly recommend verifying with the manufacturer or a qualified hearth professional to confirm fitment for your specific burner model before purchasing.

At just 1 lb and priced at $152.00, the ODS-0004 is a smart, straightforward investment in the long-term safety and performance of your vent-free hearth system. After all, peace of mind is one upgrade that never goes out of style.

• Oxygen Depletion Sensor (ODS) pilot assembly for Liquid Propane vent-free gas appliances
• Millivolt (MV) system — no external power source required
• Fail-safe design: automatically shuts off gas supply if oxygen levels become unsafe
• 750 mV thermopile output for reliable valve operation
• 32-inch thermocouple wire length for flexible installation
• 24-inch thermopile wire length
• 3/8" x 24 UNF gas connection fitting
• M8 x 1 thermocouple connection nut
• Approximately 166W energy consumption
• Meets European and CSA safety norms
• Compatible with vent-free burner series using -12 or 12M valves (with or without remote) — verify compatibility with manufacturer for your specific model
• Lightweight at just 1 lb for easy handling during installation