Best Gas Valves for Furnaces: Reliable Home Heating Valves
Choosing the right gas valve is essential for safe, efficient furnace operation. This guide highlights five reliable valve options commonly used in residential heating systems, covering different brands and compatibility scenarios. Each section explains key features, installation considerations, and what to look for to ensure proper performance and safety.
| Product | Brand | Key Feature |
|---|---|---|
| White-Rodgers 36G22-254 Series | White-Rodgers | Fast opening; 24Vac control; built-in pressure tap |
| Goodman B1282628S Gas Valve Assembly | Goodman | OEM replacement part; US-made |
| Honeywell VR8200A2132 Valve | Honeywell | Combination of manual, automatic operators and regulator |
| Lennox 73W17 Gas Valve | Lennox | 1/2″ inlet and outlet; compact form factor |
| Robertshaw 710-502 Millivolt Valve | Robertshaw | Low-voltage operation; versatile gas compatibility |
White-Rodgers 36G22-254 Series Valve
The White-Rodgers 36G22-254 is a fast-opening single-stage gas valve designed for natural gas or propane. It features a 1/2″ NPT inlet and outlet, and a 24Vac control. The unit includes inlet and outlet screens, a built-in pressure tap, and a quiet redundant design to improve reliability in residential furnaces. When selecting this valve, verify compatibility with the furnace’s gas supply, electrical control requirements, and the desired pressure range for safe operation.
Goodman B1282628S Gas Valve Assembly
The Goodman B1282628S is an OEM-replacement valve assembly intended for compatibility with Goodman systems. It emphasizes authenticity and local US production. This valve is suitable for replacing older units to maintain proper gas flow control and furnace safety. Check the model compatibility with your furnace’s control board and gas valve mounting to ensure a seamless fit.
Honeywell VR8200A2132 Valve
The Honeywell VR8200A2132 valve combines a manual valve with automatic operators, a servo pressure regulator, and a pilot adjustment feature. It is designed to provide precise control for gas firing in various furnace configurations. When selecting this valve, assess the availability of service parts, compatibility with the existing control system, and whether the valve supports both natural gas and LP options for flexibility.
Lennox 73W17 Gas Valve
The Lennox 73W17 valve features a 1/2″ inlet and outlet and a compact 4 3/8″ length, making it suitable for space-constrained applications. It is typically chosen for Lennox furnace models or compatible HVAC systems. Confirm the valve’s electrical requirements, mounting pattern, and any required adapters to ensure proper installation and reliable operation.
Robertshaw 710-502 Millivolt Valve
The Robertshaw 710-502 Millivolt Valve is designed for millivolt systems and low-capacity space heaters. It supports a wide voltage range (250 mV to 750 mV) and accommodates several gas types, including natural gas and LP blends. Features include three 1/2-inch outlets, a 1/4-inch pilot outlet, standard NEMA terminals, and a filtered inlet screen. This valve is suitable for older furnaces or retrofit projects where millivolt operation remains in use.
Buying Guide
Key considerations when selecting a furnace gas valve include valve type, gas type compatibility, voltage requirements, and mounting compatibility. Understanding the control scheme of your furnace (millivolt, 24Vac, direct ignition, or intermittent pilot) helps narrow choices to those with matching electrical and gas specifications.
- Gas type and pressure: Confirm whether the valve supports natural gas, LP gas, or both, and ensure the regulator range matches the system’s firing pressure.
- Voltage and control: Millivolt systems require valve designs like the Robertshaw 710-502, whereas 24Vac control valves are common in modern furnaces. Ensure electrical compatibility with the furnace’s control board or transformer.
- Mounting and connections: Check inlet/outlet sizes (commonly 1/2″ NPT) and the physical footprint to fit the furnace’s cabinet and piping layout. Look for included adapters or reducers if needed.
- Reliability and serviceability: OEM-replacement parts or valves with widely available service parts reduce downtime. Consider brands with robust aftermarket support and documentation.
- Safety features: Screens, pressure taps, and built-in safety features help protect against gas leaks and improper operation. Ensure proper seals and gaskets are included for a secure installation.
- Compatibility with existing components: Some valves pair with specific ignition systems (direct ignition vs intermittent pilot). Confirm compatibility to prevent ignition failures or intermittent operation.
- Installation and code compliance: Work with a licensed technician to ensure compliance with local codes and proper gas ventilation, interval testing, and leak checks after installation.
Across these options, consider your furnace model, maintenance history, and future serviceability. For reliable operation, select valves that match the manufacturer’s specifications for your unit and ensure professional installation and testing after replacement.