Manuals Brands Lenox Furnace Lenox Furnace Manuals ProdManuals has more than 4 Lenox Furnace manual(s) covering 4 model(s). L Models Document Type L Lenox Furnace EL195UH SERIES Lenox Furnace Gas Furnace Lenox Furnace Lennox Merit Series Gas Furnace Upflow/Horizontal air discharge. Lenox Furnace ML180UHE