Lennox 99K65 Gas Valve

The Lennox 99K65 Gas Valve is a factory-original OEM component manufactured by Honeywell under part number VR8205M2450. This 24V single-stage control is engineered for precise gas pressure regulation in residential furnaces and is factory-set to a 3.5" W.C. output. As a direct replacement for 99K6501, 63K88, and 63K8801, it ensures proper manifold pressure for optimal combustion and heating efficiency. This valve is highly versatile, supporting Direct Spark Ignition (DSI), Hot Surface Ignition (HSI), and Intermittent Pilot systems. Its heavy-duty construction features a 1/2" NPT inlet and outlet with a 1/4" compression fitting for the pilot gas line. Designed to withstand demanding environments, it operates reliably in temperatures ranging from -40°F to 175°F. Professional technicians rely on this Honeywell VR8205 series gas valve for its 150,000 BTU/hr capacity and low-noise operation, making it a staple for servicing Lennox HVAC systems, as well as Allied, Armstrong, and Ducane units.

• Precise Pressure Control: Factory-calibrated to 3.5" W.C. to ensure consistent burner performance and safe combustion.
• Universal Ignition Support: Compatible with HSI, DSI, and Intermittent Pilot ignition modules for broad system integration.
• OEM Reliability: Genuine Lennox furnace part ensures a perfect fit and eliminates the common bypass issues found with generic valves.
• Compact Straight-Through Design: Features a standard 1/2" NPT footprint, simplifying installation in tight furnace cabinets.

Is the 99K65 compatible with LP systems?
Yes, but it requires a conversion kit (not included). By default, it is configured for Natural Gas. For Propane applications, use the approved Honeywell LP conversion spring.

Will this replace a 120V gas valve?
No. This is a 24V AC component. Attempting to power this valve with 120V will cause immediate failure of the dual automatic operators.

Does this valve include a manifold pressure tap?
Yes, it features a 1/8" NPT pressure tap with a plug, accessible from the top, allowing technicians to verify furnace manifold pressure during setup.

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.