: an enclosed structure in which heat is produced (as for heating a house or for reducing ore)
Examples of furnace in a Sentence
Recent Examples on the WebIn Texas, during the winter months, a heat pump is up to four times more effective than a heat furnace.—Ella Gonzales, Fort Worth Star-Telegram, 15 Apr. 2024 Recent upgrades to the property include six new high-efficiency furnaces and air conditioners, new humidifiers, a new boiler, a new hot water storage tank, $100,000 in window and door upgrades and about $20,000 in electrical updates, and the elevator was serviced and certified in 2022.—Detroit Free Press, 9 Apr. 2024 See all Example Sentences for furnace
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'furnace.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
Middle English furnas, from Anglo-French forneise, from Latin fornac-, fornax; akin to Latin formus warm — more at therm
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