: 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 Web
That way, when your gas furnace eventually breaks, there’s no need to replace it.
—
Sammy Roth, Los Angeles Times, 10 Apr. 2025
Before Ascent was even built, its timber was tested in a furnace at the lab, where temperatures can reach over 2,000 degrees Fahrenheit.
—Rob Marciano, CBS News, 9 Apr. 2025
The new furnaces, which run on climate-friendly hydrogen, natural gas, and electricity instead of coal, would have helped revitalize the aging steel facility.
—Kevin Williams, Quartz, 8 Apr. 2025
Replacing a gas furnace usually runs into thousands of dollars.
—Rachel Nuwer, New York Times, 7 Apr. 2025
See All Example Sentences for furnace
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Sammy Roth, Los Angeles Times, 10 Apr. 2025
Before Ascent was even built, its timber was tested in a furnace at the lab, where temperatures can reach over 2,000 degrees Fahrenheit.
—Rob Marciano, CBS News, 9 Apr. 2025
The new furnaces, which run on climate-friendly hydrogen, natural gas, and electricity instead of coal, would have helped revitalize the aging steel facility.
—Kevin Williams, Quartz, 8 Apr. 2025
Replacing a gas furnace usually runs into thousands of dollars.
—Rachel Nuwer, New York Times, 7 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 2 May. 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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