Burnham Boiler 81660280 Valve

The Burnham Boiler 81660280 is a high-performance 3/4 inch step open gas valve engineered for precise fuel regulation in LP gas heating systems. This Honeywell VR8304P4298 replacement features a 2.5" x 10" full step opening profile, ensuring a controlled ignition sequence that minimizes thermal stress on the heat exchanger. Designed for service technicians prioritizing reliability, this low pressure gas valve operates on a standard 24V gas valve circuit, making it compatible with various Burnham 8 series and Series 2 configurations. The rugged construction maintains consistent manifold pressure, which is critical for achieving optimal combustion efficiency and reducing nuisance lockouts in residential and light commercial boiler applications. Proper integration of this replacement boiler gas valve ensures the burner assembly receives graduated fuel flow, preventing harsh starts and extending the service life of the combustion components.

• Graduated Ignition: The step-opening function provides a soft start to improve combustion stability.
• Precision Pressure Control: Specifically calibrated for Liquid Propane (LP) applications to maintain high-efficiency output.
• OEM Compatibility: Exact fit for Burnham 81660280 specifications, reducing field modification time during service calls.
• Robust Internal Seals: Engineered to withstand the chemical properties of LP for long-term manifold integrity.

What are the symptoms of a failing step-open gas valve?
Technicians often observe delayed ignition, erratic manifold pressure, or "booming" starts when the internal step mechanism or diaphragm fails to regulate the initial fuel flow correctly.

Can this valve be field-converted to Natural Gas?
This specific model is configured for LP. Conversion requires a manufacturer-certified spring kit; however, it is standard practice to match the specific part number to the fuel type of the appliance to ensure safety and performance.

Is the VR8304P4298 a direct cross-reference for this part?
Yes, the 81660280 is the Burnham-specific designation for this Honeywell step open valve, featuring the necessary porting and electrical connections for a drop-in replacement.

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.