18" Hot Surface Ignitor Kit

Rheem SP14218B – Hot Surface Ignitor Replacement Kit for Gas Water Heaters

The Rheem SP14218B is an OEM hot surface ignitor kit designed for use in select Rheem, Ruud, Richmond, and GE gas-fired water heaters. This assembly replaces worn or failed ignitors responsible for initiating burner operation via high-temperature surface ignition. It is engineered for compatibility with multiple models, restoring system reliability and ignition consistency.

This complete kit includes all required mounting and fastening hardware, designed to support accurate alignment and electrical connectivity during replacement. Manufactured to original Rheem specifications, the SP14218B ensures reliable performance and compliance with OEM safety and operational standards.

Product Features

• Application-Specific Fit: Compatible with designated Rheem/Ruud/Richmond/GE power vent gas water heaters.
• OEM Ignitor Assembly: Factory-authorized hot surface ignitor with pre-terminated connectors for direct replacement.
• Includes Fastening Hardware: Supplied with torx-head screws, clips, and burner gasket for complete installation.
• High-Temperature Tolerance: Engineered for repeated ignition cycles under burner chamber conditions.
• Service-Ready Kit: All required parts bundled to streamline field replacement and reduce time on site.

Kit Components

• AP14218B-2: Ignitor with leads
• AP12631-4: Burner access door gasket
• AP12777-3: Tinnerman clips
• AP12862: Standard screws
• AP13334: #8-32 thread-forming screw (Type F)
• AP14427: HDT20 Torx head screws

Technical Specifications

• Part Number: SP14218B
• Ignitor Length: 18 inches (lead length)
• Fuel Type: Natural gas or LP (verify per heater model)
• Ignition Type: Silicon nitride hot surface
• Use: Ignitor replacement for atmospheric and power vented gas water heaters

Installation Considerations

Installation involves accessing the burner chamber, removing the existing ignitor, and securing the replacement assembly with provided fasteners. Ensure all electrical connections are secured and that the ignitor is properly positioned in the flame path. Power should remain disconnected during service. Follow model-specific installation protocols and local code requirements. Professional installation is strongly recommended.

Contractor Notes

This kit is ideal for service calls involving failed ignition or intermittent burner startup. Having the SP14218B on hand streamlines replacement in the field, reducing diagnostic and installation time. Confirm heater model and serial number for compatibility before dispatch.

Summary

The Rheem SP14218B Hot Surface Ignitor Kit provides a reliable, factory-tested solution for ignition failures in compatible gas water heaters. With comprehensive hardware and proven OEM quality, it’s a critical replacement component for maintaining system safety and performance in the field.