58SC0A/58SC1A 80% AFUE, Single-Stage, Multi-Speed ECM, 4-Way Multipoise, Non–Condensing Gas Furnace

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59SP5A Single-Stage,4-Way Multipoise, Gas Furnace Series 100

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OG-9GFP-08- Payne Condensing Gas Furnaces

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S9X1 S9X2 S9B1 - Upflow/Horizontal and Dedicated Downflow Gas-Fired, Direct/Non-Direct Vent, Single Stage / Two Stage Condensing Furnaces with High Efficiency Motor

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W415-0919 - Napoleon Two Stage Natural and Propane Gas High Effifiency Condensing Forced Air Furnace

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Nordyne G7TC-SERVKIT_95.1% AFUE

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Lennox G21V Series

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Lennox G24-200 Upflow Gas Furnace

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Lennox G32 Series Gas Furnace

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Lennox G41UF-24B-045

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Lennox G43UF Series

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Lennox G43UF Installation Manual

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Lennox 90UGF Series 

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TUH-B-C-D - Upflow/ Horizontal, Downflow/ Horizontal, Gas-Fired, Direct Vent Condensing Furnaces

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TUD2-B-C-D,AFV - Variable Speed, 2-Stage, 80% Upflow/ Horizontal Gas-Fired Furnaces, “Fan Assisted Combustion System” with Whole House Air Cleaner

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TUD2-B-C-D,ACV - Variable Speed, 2-Stage Communicating or 24V Upflow / Horizontal and Downflow / Horizontal,Gas-Fired Furnaces, “Fan Assisted Combustion System”

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TUD2-A-B-C-D- Upflow / Horizontal and Downflow / Horizontal Gas-Fired Furnaces, 2 - Stage,“Fan Assisted Combustion System”

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TUD1-A-B-C-D- High Efficiency Single Stage Upflow / Horizontal and Downflow / Horizontal Gas-Fired Furnaces, “Fan Assisted Combustion System”

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TUD- Upflow Gas-Fired Furnaces, “Fan Assisted Combustion System”

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TUD-R- Upflow / Horizontal and Downflow / Horizontal Gas-Fired Furnaces, 2 - Stage,“Fan Assisted Combustion System”