Gas & Ignition

Gas Ignition Components

The Gas Ignition category focuses on the ignition and flame-safety components that bring gas furnaces, boilers, unit heaters and some rooftop units safely into operation. Reliable ignition is critical for both safety and comfort: when igniters, flame sensors or gas valves start to fail, systems lock out, short-cycle or deliver no heat at all. This section is built for technicians who need OEM-style gas ignition parts that restore dependable light-off and protect equipment from unsafe conditions.

Here you’ll find hot-surface igniters, spark igniters, ignition electrodes, flame sensors, gas valves, pilot assemblies, ignition control modules, ignition harnesses and related hardware. Many parts match OEM specifications for lead length, connector type, mounting bracket and electrical characteristics, while select universal options include adapters and instructions for field retrofit. Clear ratings and application notes help you cross-reference from existing part numbers and confirm compatibility with common residential and light-commercial equipment.

• Hot-surface igniters (silicon carbide & silicon nitride) for modern furnaces and boilers.
• Spark igniters & pilot assemblies for intermittent and standing-pilot systems.
• Flame sensors for reliable flame recognition and safety lockout.
• Gas valves with single-stage, two-stage and modulating options.
• Ignition control modules & harnesses to coordinate safe startup sequences.

When selecting gas ignition components, always verify equipment model, fuel type (natural gas vs LP), ignition type (hot-surface, spark, intermittent pilot), electrical ratings, pressure settings and connector style. Many gas valves and controls are not “plug-and-play” and must be configured according to manufacturer instructions. Use the Compare tools on this page to review flame-sensing method, microamp requirements, pressure ranges, certification listings and OEM cross-reference notes before ordering.

Pro tip: Before condemning ignition parts, verify proper line and manifold gas pressure, correct polarity, solid ground, adequate combustion air and clean, properly positioned burners. For hot-surface igniters and flame sensors, avoid touching the element with bare fingers and keep ceramic and sensing rods free of contamination. Document fault codes, ignition sequence, flame signal readings and existing part numbers to select the correct gas ignition replacement component and prevent repeat lockouts.