Lennox 70W16 Silicon Nitride Ignitor LB-112237B 120V Brand New. Please see photos for details.
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The
Lennox 70W16 Silicon Nitride Ignitor (Part # LB-112237B) is a
120-volt hot surface igniter used to light the burner gas in Lennox, Armstrong, and Ducane HVAC systems. Made from durable silicon nitride ceramic, it serves as a highly robust upgrade or direct replacement for fragile, older silicon carbide igniters. [
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Key Specifications & Features
- Electrical Ratings: Operates at 120 VAC (60 Hz) with a steady amp draw of 0.36 to 0.65 Amps.
- Resistance Range: Expect a cold resistance reading between 39 and 70 Ohms at room temperature (25°C / 77°F).
- Performance: Reaches ignition temperatures between 1200°C and 1500°C (2192°F to 2732°F) following a 20-second warm-up sequence.
- Cross-References: Replaces factory part numbers LB-112237B, 100536-03, 10053602, LXT-03, and White-Rodgers 789A-801A1