International Comfort Products 1149021 24V 3/4" Step-Opening Natural Gas Valve

The International Comfort Products 1149021 is a 24-volt step-opening natural gas valve designed for residential HVAC applications. This OEM replacement valve features a 3/4-inch NPT inlet and outlet configuration, making it suitable for furnaces requiring higher gas flow capacities.

Key Features:

• Step-opening design with dual pressure regulation for controlled ignition
• 24 VAC operation with 0.7A current draw
• 3/4-inch NPT threaded inlet and outlet connections
• Dual automatic safety shutoff valves for code compliance
• Integrated pressure regulator with 0.9" WC step setting and 3.5" WC full rate
• Compatible with intermittent pilot ignition systems
• Includes manual shutoff, pilot adjustment, and safety features
• Natural gas only - cannot be converted to LP

This combination gas control valve is built on the Honeywell VR8304P platform and provides reliable gas flow regulation in heating appliances. The step-opening function gradually increases gas pressure from the initial ignition level to full operating pressure, reducing stress on the ignition system and providing smoother starts. Commonly used in ICP, Heil, Tempstar, Arcoaire, Comfortmaker, and related brand furnaces.