What is a heat exchanger? Inside each furnace there is a heat exchanger. The heat exchanger is a thin-walled metal device that is designed to burn fuel inside it. Air that circulates throughout your home is blown over the outside of the heat exchanger in order to be heated.
Odell with the Mount Hood Railroad. Odell is an unincorporated community in Hood River County, Oregon, United States. For statistical purposes, the United States Census Bureau has defined Odell as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name.
ODE is the flagship native-speaker desk dictionary from Oxford Dictionaries for British English. It has a much longer headword list than OALD and definitions written to a much higher level; also fewer, shorter examples. OALD is what it sounds like, an English dictionary for advanced learners.