vent·less
ˈvent-ləs 
: not having a vent for the escape or release of a gas, liquid, etc.
You'll get the heat with a ventless fireplace, but with it you won't get the crackling, aromatic appeal of burning wood.—
Katheryn Krotzer Laborde
Katheryn Krotzer LabordeLast April, Bellwether Coffee announced their new ventless coffee roaster designed to help cafes and grocery stores roast in-store without having to install complex ventilation systems.—Garrett Oden
Garrett Oden
of a garment
: not having a vent or slit
… ventless double-breasted suits …—Ralph DiGennaro
Ralph DiGennaroThe padded shoulders, ventless back and slight suppression in the torso that are so prevalent in Italian and French tailoring …—Diane Sustendal
Diane SustendalExamples of ventless in a Sentence
Recent Examples on the Web
Lisa Wood Shapiro,
Wired News,
6 Jan. 2026
Because ethanol burns cleanly, producing only water vapor and a small amount of carbon dioxide, these fireplaces are ventless and require no chimney or flue.
—
Angie Hicks,
Boston Herald,
30 Nov. 2025
Features include 3½ bathrooms and a living room with custom millwork, O’Brien Harris shelving and a 60-foot linear ventless fireplace framed in Iceland book matched porcelain.
—
Bob Goldsborough,
Chicago Tribune,
26 Mar. 2025
Middleby has strengthened its position as an industry leader by focusing on automation, ventless kitchens, electrification, and IoT connectivity.
—
Joe Cornell,
Forbes,
5 Mar. 2025
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Adjective
Could there be an affordable ventless fireplace that won’t increase cancer risk or speed up the Earth’s demise?
—
Lisa Wood Shapiro,
Wired News,
6 Jan. 2026
Because ethanol burns cleanly, producing only water vapor and a small amount of carbon dioxide, these fireplaces are ventless and require no chimney or flue.
—
Angie Hicks,
Boston Herald,
30 Nov. 2025
Features include 3½ bathrooms and a living room with custom millwork, O’Brien Harris shelving and a 60-foot linear ventless fireplace framed in Iceland book matched porcelain.
—
Bob Goldsborough,
Chicago Tribune,
26 Mar. 2025
Middleby has strengthened its position as an industry leader by focusing on automation, ventless kitchens, electrification, and IoT connectivity.
—
Joe Cornell,
Forbes,
5 Mar. 2025
Cite this Entry
“Ventless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ventless. Accessed 5 Jul. 2026.
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