White-Rodgers 21D64-44

Hotrod Ex Universal 120v Flat Silicon Nitride Hot Surface Ignitor Kit delivers reliable ignition for your furnace. Designed for conversion of Silicon Carbide (flat or Spiral) and compatible with White-Rodgers 21D64-44 units, this kit includes everything you need for a clean, dependable install.

The kit features a 120V hot surface igniter made from durable silicon nitride for fast startup and long life. It comes with 2 universal brackets, an instruction booklet, a furnace label, 2 ceramic wire nuts, and a 5-year warranty for peace of mind. Perfect for silicon carbide conversions, whether you’re using flat or spiral configurations.

• 120V operation ensures quick, reliable firing in standard furnaces
• Flat silicon nitride hot surface for consistent ignition and durability
• Silicon carbide conversion ready compatible with flat or spiral setups
• Includes essential hardware 2 universal brackets, instruction booklet, furnace label, and 2 ceramic wire nuts
• 5-year warranty provides long-term protection