Update: Well combining word in my book says its the root word plus the combining vowel. So in cardiology, the word cardi is the root word meaning heart and the O (combining vowel) connects it to LOGY which means the study of. So the combining word would be cardi/o (cardio) But I cant seem to figure out these bigger... show more Well combining word in my book says its the root word plus the combining vowel. So in cardiology, the word cardi is the root word meaning heart and the O (combining vowel) connects it to LOGY which means the study of. So the combining word would be cardi/o (cardio) But I cant seem to figure out these bigger words. 1 following.
heat exchanger - device that transfers heat from one liquid to another without allowing them to mix. device - an instrumentality invented for a particular purpose; the device is small enough to wear on your wrist; a device intended to conserve water.
Other infrared heaters contain three parts that create heat: infrared light bulbs, a heat exchanger (such as a good metal conductor like copper) and a fan that blows air onto the exchanger to create the heat [source: Wasch ]. Infrared heaters also differ in fuel source and cÂ­onstruction material.