Robertshaw 720-055 24V Hot Surface Ignition Gas Valve 1/2" x 3/8" 125000 BTU Step Opening

The Robertshaw 720-055 is a professional-grade 24-volt hot surface ignition gas valve designed for residential heating applications. This step opening gas valve features 1/2" inlet and 3/8" outlet connections with a right-side outlet configuration and straight-through flow design, formerly known as model 7200DERCS-1.

Key Features:

• 125,000 BTU maximum capacity for high-performance heating systems
• Hot surface ignition eliminates the need for standing pilot lights, improving energy efficiency
• Built-in convertible pressure regulator factory-set at 3.5" W.C. for natural gas and 11" W.C. for LP gas
• Six-function valve incorporating manual valve, safety shutoff magnet, dual automatic valves, main gas regulator, and pilot adjustment
• Compact 3-9/16" swing radius allows for easy OEM replacement in tight spaces
• Manual selector with four positions: off, on, pilot, and set
• Includes LP conversion kit for quick fuel type switching
• Maximum inlet pressure: 14" W.C. (1/2 PSI)
• Can be mounted in any position except upside down

This valve is ideal for central heating units, space heaters, wall heaters, boilers, and mobile home furnaces. The top-mounted wiring connections and adjustments provide easy access for installation and service. Compatible with natural gas and liquid propane systems. Replaces OEM part numbers including Nordyne 6244904 and 6246190.