Reznor 221634 Gas Valve

The Reznor 221634 is a professional-grade 24V gas valve engineered specifically for low-pressure liquid propane (LP) applications in industrial and commercial unit heaters. As a veteran-verified OEM replacement part, the 221634 serves as the direct successor to the legacy 096311 model, ensuring a seamless drop-in fit for serviced equipment. This solenoid-actuated valve is factory-calibrated for a 10" WC (Water Column) output, providing the precise fuel modulation required for high-efficiency combustion. With a standard 3/4" NPT connection, it integrates into existing gas manifolds without extensive re-piping. For technicians performing a Reznor unit heater repair, this component is essential for resolving intermittent pilot issues or manifold pressure drops. Designed for durability in high-cycle environments, this propane gas control valve maintains consistent burner performance across Reznor’s larger heater series, typically ranging from 225,000 to 400,000 BTUH. Always verify the 1/4” compression nut compatibility on the pilot line during installation to ensure a leak-free seal.

• Direct OEM Compatibility: Engineered as the specific replacement for 096311, 157167, and 157168, eliminating the guesswork in part matching.
• Optimized LP Output: Pre-set to 10" Water Column for stable propane delivery, reducing soot buildup and burner vibration.
• Robust Solenoid Design: The 24V gas valve architecture ensures reliable response to thermostat demands even in high-demand commercial settings.
• Technical Standard Sealing: Features a 3/4-inch gas valve inlet/outlet for high-flow capacity suited for large-scale unit heaters.

Is the 221634 compatible with natural gas systems?
No, this specific model is calibrated exclusively for liquid propane (LP) systems. Installing an LP valve on a natural gas line will result in improper manifold pressure and safety hazards.

Does this valve require an additional bushing for installation?
The 221634 uses a 3/4" NPT connection. If your existing manifold nipple is 1/2", a standard 1/2" x 3/4" bushing is required to complete the installation safely.

How can I confirm this is the right replacement for my 096311 valve?
The 221634 is the factory-designated direct replacement for the 096311. If your unit's serial prefix corresponds with the 096311 series, this is the current active part number for your heater.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.