Finding the right gas valve for a heating unit is essential for safety, efficiency, and dependable operation. The following selections cover a range of common applications—from millivolt and 24V controls to direct-vent and natural gas configurations. Each product is evaluated on compatibility, construction, and practical features to help homeowners and technicians decide which valve best fits their system.
Summary of selected products
| Product | Brand | Key Features |
|---|---|---|
| White-Rodgers 36G22-254 | White-Rodgers | Fast opening, 24Vac, built-in pressure tap |
| Goodman B1282628S | Goodman | OEM replacement, US-made |
| Robertshaw 710-502 | Robertshaw | Millivolt, versatile gas types, three-position outlets |
| Reliance WT8840B | Honeywell | Standard cavity valve, robust regulator options |
| LENNOX 73W17 | Lennox | Compact, 1/2″ NPT compatible |
White-Rodgers 36G22-254 Series Gas Valve
The White-Rodgers 36G22-254 is a fast-opening single-stage valve designed for natural gas or LP installations with 1/2″ x 1/2″ pipe connections. Its 24Vac coil ensures straightforward integration with standard heating control circuits. Notable features include inlet and outlet screens for filtration, a quiet redundant mechanism for reliable operation, and a built-in pressure tap for diagnostic testing. This valve is suitable for residential furnaces and boilers that require prompt gas shut-off and predictable response times. Installation should follow manufacturer guidelines and local codes to ensure safe operation.
Key considerations: ensure compatibility with your burner assembly and pilot configuration. The 24Vac coil aligns with common thermostat and control boards, while the built-in pressure tap can simplify mid-season troubleshooting. The valve’s screened inlets/outlets help protect downstream components from debris. Lifetime performance depends on proper mounting, wiring, and periodic inspection for wear on the solenoid and seals.
Goodman B1282628S Gas Valve Assembly
The Goodman B1282628S gas valve assembly is an OEM replacement part designed to restore gas control in Goodman systems. Marketed as a genuine replacement, the valve region includes the essential components required to maintain stable gas flow in standard residential furnaces. The product emphasizes domestic production and brand compatibility, which can simplify service workflows for Goodman-equipped units.
Practical notes: verify model compatibility with the furnace or heat source. OEM parts typically provide exact fit and performance characteristics, reducing the risk of improper seating or mismatch. When replacing, consult service manuals for wiring diagrams and pilot assembly alignment. Routine inspection of gas pressure and ignition sequence remains important for consistent operation.
Robertshaw 710-502 Millivolt Gas Valve
The Robertshaw 710-502 is a compact, low-profile gas valve designed for millivolt systems, commonly used in space heaters and certain gas appliances where a pilot-light mechanism powers the control. It supports a range of gas types, including natural and LP, and features a RoHS-compliant construction with three-position 1/2-inch outlets, a 1/4-inch pilot outlet tubing, standard NEMA terminals, and a gas cock dial with off-pilot-on markings. The built-in inlet filtered screen helps minimize debris entering the control.
Considerations: millivolt valves rely on thermocouples or thermopiles for ignition control. When replacing, ensure the pilot system and flame supervision devices are compatible with the valve’s ratings. The three-position outlet layout supports flexible plumbing, but correct alignment with the pilot and main burner is essential for safe startup and flame stability.
Reliance Water Heater Gas Control Valve WT8840B
The Reliance WT8840B valve, associated with Resideo/Honeywell ecosystems, is a robust gas control suitable for water heaters and related direct-vent appliances. Its upright mounting and assorted regulator configurations support stable gas pressure delivery within a 1/2 inch inlet/outlet framework. The valve’s temperature and pressure ratings help operators predict safe operation across varying ambient conditions. This type of valve is commonly used in residential water heating setups that require reliable flame supervision and straightforward replacement parts.
Key points: confirm cavity compatibility with your heater model and ensure the regulator setting matches system requirements. The device’s standard NPT connections and mounting orientation simplify installation, especially in retrofit situations. Regularly inspect flame supervision devices and safety shutoffs to maintain safe operation over time.
LENNOX 73W17 Gas Valve
The Lennox 73W17 is a compact gas valve featuring a 1/2″ inlet and outlet with a valve length of about 4 3/8″. This form factor is suitable for many Lennox and compatible non-proprietary installations where space is limited but reliable gas control is required. The valve’s dimensions are important when replacing legacy units that may have tighter clearances.
Practical considerations: verify that the valve’s electrical and valve body interfaces align with the furnace’s control board and gas train. Ensure that the replacement valve meets the appliance’s fuel type, gas pressure rating, and ignition sequence. With limited space, careful routing of wiring and gas lines is essential to avoid interference with other components.
JKLESA 0820652 Natural Gas Fireplace Valve
The 0820652 natural gas millivolt control from JKLESA is designed for direct-vent fireplaces, stoves, and gas logs. It includes a multifunctional control set with thermoelectric flame supervision, restart interlock, and a servo pressure regulator, delivering a versatile valve suitable for various direct-vent appliances. Replacement part numbers in the 0820652 family indicate compatibility across multiple brands and models, simplifying cross-brand servicing for fireplace installations.
Design implications: millivolt-based controls are common in decorative gas appliances. When replacing, ensure compatibility with the existing thermocouple/pilot assembly, flame safeguards, and venting configuration. The broad compatibility can help technicians source a single valve for multiple fireplace units, reducing downtime.
Durablow DV970A-NG Millivolt Gas Valve
The Durablow DV970A-NG is a millivolt gas valve replacement designed for NATURAL gas in Dexen, Robertshaw, and HHT series appliances, among others. It emphasizes compatibility with a broad range of brand families, including Lennox, Empire, and Dexter/ Dexen lines, and is CSA certified for safety compliance. The valve is rated for high-temperature operation up to 225°F and includes dimensional specifications to fit within standard fireplaces and compact gas trains.
Usage guidance: millivolt valves require accurate flame supervision and pilot alignment. Cross-reference OEM part numbers and installation manuals to ensure the DV970A-NG is the proper substitute for the original valve. Adhering to local codes and manufacturer directions is essential for safe operation.
Buying Guide: Key Considerations For Gas Valve Purchases
- Fuel type compatibility: confirm whether the valve supports natural gas, LP gas, or mixed gas, as well as millivolt or 24V electrical control. Mismatches can affect ignition reliability and safety.
- Connection type and size: verify inlet/outlet dimensions (commonly 1/2″ NPT or similar) and ensure they align with the existing gas line and burner assembly.
- Control voltage and compatibility: 24Vac coils are common for modern furnaces, while millivolt valves suit older systems. Ensure the valve’s electrical interface matches the furnace’s control board and thermocouple/pilot system.
- Safety features: built-in pressure taps, flame supervision devices, and automatic shut-off capabilities improve diagnostic ability and safety during operation.
- Dimensional fit and clearance: measure valve length and mounting orientation to avoid fit issues in tight compartments or fireplaces.
- Replacement compatibility: OEM vs. aftermarket parts—OEM replacements guarantee exact fit, while compatible parts may offer broader cross-brand support but require careful verification.
- Regulatory compliance: look for RoHS, CSA, or UL listings where applicable to ensure safety and code compliance for residential installations.
- Installation considerations: some valves require specific pilot assemblies or regulator configurations; consult installation guides and, if needed, professional service to ensure proper setup and gas pressure regulation.
- Maintenance and inspection: periodic checks of electrical connections, solenoid condition, and flame performance help maintain safe operation and extend valve life.
In selecting a gas valve for heating units, users should weigh compatibility with the appliance, control type, available space, and safety features. The product options listed here span common brands and configurations to support reliable operation across residential heating systems. Always follow manufacturer guidelines and local codes during installation and replacement to uphold safety and performance.