: an enclosed structure in which heat is produced (as for heating a house or for reducing ore)
Examples of furnace in a Sentence
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Uma’s efforts to try and forge a relationship with Gopal are frustrated at every turn, and the human furnace of the city outside her door gets to her.
—
Bilge Ebiri, Vulture, 19 May 2025
Since the furnace works to keep the home warm in the winter, and the air conditioner is primarily responsible for keeping the home cool in the summer, any drafty areas of the home where heat can flow freely through the walls reduce its overall efficiency.
—Timothy Dale, Better Homes & Gardens, 8 May 2025
New standards for commercial air conditioners and furnaces affected heating and cooling equipment for half of the square footage used by the nation’s businesses.
—David J. Vogel, The Conversation, 17 Apr. 2025
The general assumption is that filling a reactor with uranium and plutonium is like shoveling coal into a boiler furnace – a straightforward operation that, in the case of nuclear, is just a bit more involved.
—New Atlas, 15 Apr. 2025
See All Example Sentences for furnace
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Bilge Ebiri, Vulture, 19 May 2025
Since the furnace works to keep the home warm in the winter, and the air conditioner is primarily responsible for keeping the home cool in the summer, any drafty areas of the home where heat can flow freely through the walls reduce its overall efficiency.
—Timothy Dale, Better Homes & Gardens, 8 May 2025
New standards for commercial air conditioners and furnaces affected heating and cooling equipment for half of the square footage used by the nation’s businesses.
—David J. Vogel, The Conversation, 17 Apr. 2025
The general assumption is that filling a reactor with uranium and plutonium is like shoveling coal into a boiler furnace – a straightforward operation that, in the case of nuclear, is just a bit more involved.
—New Atlas, 15 Apr. 2025
See All Example Sentences for furnace
Cite this Entry
“Furnace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/furnace. Accessed 19 Jun. 2025.
Copy CitationKids Definition
furnace
noun
fur·nace
ˈfər-nəs 
: an enclosed structure in which heat is produced (as for heating a house or melting metals)
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