heat·​er | \ ˈhē-tər How to pronounce heater (audio) \

Definition of heater

1 : one that heats especially : a device that imparts heat or holds something to be heated
2 : fastball

Examples of heater in a Sentence

Recent Examples on the Web

According to the National Fire Protection Association, space heaters cause 43% of home heater fires each year. 9. Lindsey Campbell, House Beautiful, "19 Dangerous Household Items You Should Quit Using Immediately," 15 Feb. 2019 Each day, 35,000 gallons of diesel are trucked in as well, to run massive generators that power air conditioners in the summer and heaters on winter nights. Garance Burke And Martha Mendoza, The Seattle Times, "US waived FBI checks on staff at growing teen migrant camp," 28 Nov. 2018 These fires can spark when a heater is too close to combustible materials or when the device malfunctions mechanically or electrically, leading to potentially lethal consequences. Kimberly Truong, SELF, "House Fires Are Way More Common in Winter—Here’s How to Stay Safe," 23 Jan. 2019 Replacing showerheads, insulating hot water heaters, buying more efficient lights, having automatic controls for thermostats. Gaby Del Valle, Vox, "Can consumer choices ward off the worst effects of climate change? An expert explains.," 12 Oct. 2018 Resideo will include Honeywell’s ADI Global Distribution and home divisions, producing equipment such as thermostats, water-heater controls, security-control devices and sensors. Aisha Al-muslim, WSJ, "Resideo Names CFO, Board Ahead of Spinoff From Honeywell," 12 Sep. 2018 The heater is, essentially, a smaller radiator that lives behind your dashboard. Ray Magliozzi, courant.com, "Car Talk: Do Premium Wiper Blades Really Make A Difference?," 18 May 2018 There’s a guy that often sets up his tent alongside Mission Dolores on 16th at Dolores, plugs in an electrical cord somehow to the bus stop signage, plugs in an electric heater and phone charger. Leah Garchik, San Francisco Chronicle, "In San Francisco, the unpretty scenery of everyday streets," 26 Jan. 2018 In more than a dozen of those cases, pool heaters were the source of the dangerous gas. Ames Alexander, charlotteobserver, "Why are guests still dying from hotel gas leaks? | Charlotte Observer," 24 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heater.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of heater

15th century, in the meaning defined at sense 1

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Statistics for heater

Last Updated

1 Mar 2019

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Time Traveler for heater

The first known use of heater was in the 15th century

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More Definitions for heater



English Language Learners Definition of heater

: a machine that heats water or air


heat·​er | \ ˈhē-tər How to pronounce heater (audio) \

Kids Definition of heater

: a device for heating

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More from Merriam-Webster on heater

Rhyming Dictionary: Words that rhyme with heater

Spanish Central: Translation of heater

Nglish: Translation of heater for Spanish Speakers

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