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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
The minimum interval is 30 minutes
verifying the specific S1-025-38948-000 part number is recommended for guaranteed compatibility
utilizing this genuine Williams replacement part is non-negotiable for system safety and ensuring the unit meets factory-specified efficiency ratings
and Luxaire gas furnaces and air handlers
allowing for fine-tuned pressure control
Lennox 21L98 Ignitor Electrode The minimum interval is 30The Lennox 21L98 Ignitor Electrode is a critical furnace component designed for precise direct spark ignition (DSI) sequences in high efficiency residential and commercial units. This genuine OEM part, which is cross referenced and identical to Lennox 21L9801, ensures the correct spark gap and flame rectification required for consistent burner light off. Unlike generic alternatives, the 21L98 is engineered with high grade ceramic insulation to prevent