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hot Surface Upgrade Ki * Hot Surface Igniter Upgrade Kit. Replaces existing Silicon Carbide Igniters With Nitride Design. Includes Igniter Module Univ. Bracket Harness And Furnace Label. REPLACED BY: 21D64-2

Hot surface igniter. 120V * 120V Universal silicon nitride upgrade kit for conversion of silicon carbide (flat or spiral) includes, 2 brackets, Furnace label, instruction booklet, and 2 ceramic wire nuts. Does NOT require power adapter module. Replaces 21D64-1

Lennox OEM Control Board Sure Light Ignition Control Kit Single Stage HSI Integrated Furnace Control Kit. Replaces Part# 83M00

Univ 2stage furnace cntl kit

Electric Heat Relay SPST Normally Open 120v Replaces: Honeywell R841C1193

Electric Heat Relay 277v * Electric heat relay. 277V input. Contacts rated for 22 amps or 6000W at 277V resistive load.

Fan & Electric Heat Sequencer * Electric Heat Sequencer 2 SPST Switches. Both Make In 20 Seconds. 25A @ 120/208/240V. 24V Coil.

Fan & Electric Heat Sequencer * Electric Heat Sequencer 4 SPST Switches.2 Make In 20 Seconds And 2 Make In 90 Seconds. 25A @ 120/208/240V. 24V Coil.

Heavy Duty Space Thermostat * Heating Only Heavy Duty Space Stat. Range 20 To 90 F. Adjustable Differential 3 TO20 F. 14A @ 120V 7A @ 240V.

Pilot Safety 42 * Pilot Safety Automatic Reset. SPST Contacts. 125Va @ 120V. 42 Lead Length.

Flame Sensor. 48 Element. Panel Type D. Bulb Style #20. Replaces Bulb Styles #17And #18.

Plug-In Auto Pilot * Flame Sensor. 48 Element. Panel Type E. Bulb Style #19. Replaces Bulb Styles #9 And #13.