Answering buyers seeking an electronic gas control valve for water heaters: these five products represent a mix of OEM-compatible and universal options designed to regulate gas flow, temperature, and ignition. The list targets different needs—from professional installation requirements to high-temperature resistance and modular compatibility. The top picks are best for homeowners evaluating replacement valves, pros handling installation, and contractors seeking durable, maintenance-friendly options.
Overview of selected products:
- Reliance Water Heater Natural Gas Control Valve — Best for Reliance, A.O. Smith, and similar branded heaters; suitable for professional installation.
- Bradford White Natural Gas Control Valve — Best for Bradford White and ICON-style replacements; designed for residential systems.
- Honeywell VR8345M-4302 Universal Gas Valve — Best for versatile ignition options and direct or intermittent pilot setups.
- U.S. Solid 3/8″ Brass Electric Solenoid Valve — Best for high-temperature and harsh environments; suitable for various gas and fuel applications.
- Honeywell VR8200A2132 Valve — Best for complete valve assemblies with included fittings and conversion capabilities.
Reliance Water Heater Natural Gas Control Valve

Features include compatibility with multiple branded heaters and a note that professional installation is advised. Best for: homeowners replacing Reliance, A.O. Smith, State, or American-branded heaters when a professional install is feasible. Caution: installation by a non-professional may void warranties and pose safety risks.
Bradford White Natural Gas Control Valve

Features highlight 1″ gas line universal replacement and ICON valve compatibility, plus a millivolt-powered control that requires no external electricity. Best for: Bradford White owners looking to replace ICON valves or achieve a simple 1-2-3 lighting sequence. Caution: ensure compatibility with the specific ICON version currently installed.
Honeywell VR8345M-4302 Universal Gas Valve

Includes multiple adapters and conversion kits to support natural to LP gas, with a direct ignition or intermittent pilot option. Best for: installations requiring versatile gas valve configurations and pilot control. Caution: check that included reducers and kits match the heater’s inlet/outlet sizes.
U.S. Solid 3/8″ Brass Electric Solenoid Valve

Best for high-temperature and demanding environments; features a low-power coil, brass construction, and Viton seal for chemical resistance. Best for: projects requiring robust, corrosion-resistant components in gas or fuel lines. Caution: not suitable for potable water systems or drinking-water applications.
Honeywell VR8200A2132 Valve

Best for: complete valve assemblies with included adapters and a history of reliable operation in standard 1/2″ NPT configurations. Caution: verify the matching inlet/outlet requirements and the presence of necessary pilot and adjustment fittings for your system.
Buying Guide
- What heater brand and model do you own? Choose valves listed as compatible with your brand (Reliance, Bradford White, Honeywell, etc.).
- What installation is required? Some valves require professional installation; confirm warranty implications and permit requirements before purchasing.
- Are you replacing an ICON valve or updating to a universal valve? Universal valves can fit multiple brands; verify fit with your existing piping and shanks.
- Do you need ignition options? Direct ignition and intermittent pilot valves offer different startup methods—ensure compatibility with your heater’s ignition system.
- What are the temperature and pressure specs? Look for units with appropriate W.C. pressure ratings and temperature cutoffs for safety.
- Materials and seals: Viton seals and brass bodies improve durability but may affect chemical compatibility with fuels; confirm suitability for your installation environment.
Comparison Snapshot
- Best for branded compatibility: Reliance valve (Reliance & major brands) with professional installation.
- Best for ICON replacements: Bradford White valve with simple lighting instructions.
- Best for versatile ignition: Honeywell VR8345M-4302 (natural to LP, direct or intermittent ignition).
- Best for harsh environments: U.S. Solid brass 3/8″ valve with low-power coil and Viton seal.
- Best for complete assemblies: Honeywell VR8200A2132 with included adaptors and conversion options.
FAQ
- Q: Can I install these valves myself? A: Some valves allow homeowner installation, but many require a licensed professional to meet safety and warranty requirements.
- Q: Will these valves fit my specific water heater model? A: Check brand compatibility and valve shank or inlet/outlet sizes listed in product details.
- Q: Do these valves control temperature or just gas flow? A: Many valves regulate gas flow and ignition timing; some include built-in thermostatic control or ECO features for safety.
- Q: Are there service notes for pilot and ignition methods? A: Yes, look for direct ignition or intermittent pilot options and any required conversion kits.
- Q: What maintenance should I expect? A: Replace worn seals, verify pilot alignment, and inspect wiring or solenoid connections during routine service.
- Q: Do these valves affect energy efficiency? A: Properly functioning gas control valves help maintain consistent temperatures and safe operation, contributing to overall efficiency.