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24 EARLY FALL 2017 // STEMJOBS.COM You probably know that most car engines burn gasoline to create power, which is why they're called combustion engines. But many furnaces also rely on combustion to produce heat by burning coal, natural gas, or oil. These furnaces range from small pieces of equipment used to heat our homes to massive units responsible for melting raw materials in places like steel mills. Combustion is a chemical process between substances (oxygen is usually one of them) that produces heat. Anyone who has sat around a campfire, lit a candle, looked at the stars, or watched a rocket launch has witnessed combustion. Even though it's all around us, we don't often think about the chemical process taking place, or the conditions necessary to allow combustion to occur efficiently. That's where someone like Ashleigh Walters comes in. President of Onex, Inc., Ashleigh oversees all divisions of the industrial furnace service and manufacturing company. CHEMISTRY // ASHLEIGH WALTERS PLAYING WITH FIRE Fired Up About STEM BY ELLEN EGLEY PHOTOS © FRED OLDS

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