What mechanical engineering principles does Lennox International use in its HVAC products?
Lennox International Lennox International Inc. () is an intercontinental company. Through its subsidiaries, it is a provider of climate control products for the heating, ventilation, air conditioning, and refrigeration markets around the world. The Company was founded in 1895, in Marshalltown, Iowa, by Dave Lennox, the owner of a machine repair business for railroads. He designed and patented a riveted steel coal-fired furnace, which led to numerous advancements in heating, cooling and climate control solutions. The company was sold in 1904 to DW Norris who managed the company until his death in 1949, following which ownership devolved to his descendants who continued to hold a prominent position in the company in the following decades.
Design for X Design for excellence, Design for Excellence, or Design For Excellence (DFX or DfX), are terms and expansions used interchangeably in the existing literature, where the "X" in "design for X" is a variable which can have one of many possible values. In many fields (e.g., very-large-scale integration (VLSI) and nanoelectronics) "X" may represent several traits or features including: manufacturability, power, variability, cost, yield, or reliability. This gives rise to the terms design for manufacturability (DfM, DFM), design for variability (DfV), design for cost (DfC). Similarly, other disciplines may associate other traits, attributes, or objectives for "X".