soft, raised surface upon cloth, mid-14c., downy plumage, from Anglo-French pyle or Middle Dutch pijl, both from Latin pilus a hair (source of Italian pelo, Old French pel). Phonological evidence rules out transmission of the English word via Old French cognate peil, poil. Meaning nap upon cloth is from 1560s.
Updated 01/08/17. 1  of 06. Gas Furnace Types and Efficiency Ratings BanksPhotos / Getty Images The gas furnace in your home is a critically important appliance and one you depend on to work reliably, efficiently and quietly. 2  of 06. Low Efficiency Furnace: 55% to 72% AFUE (obsolete technology) Characteristics. 3  of 06.
WHAT IT IS. An oil furnace is the heating component in some systems in colder weather climates, most commonly in the northeastern United States. It converts oil to heat. Another option is a gas furnace that uses natural gas as its fuel instead of oil.The main components to a furnace include burners and heat exchanger, blower and controls. Trane gas and oil furnaces are built to perform again and again, year after year.t converts oil to heat. Another option is a gas furnace that uses natural gas as its fuel instead of oil. The main components to a furnace include burners and heat exchanger, blower and controls.