space heater

noun

: a usually portable appliance for heating a relatively small area

Examples of space heater in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Always unplug electric candle warmers, space heaters, and similar devices when not in use to avoid fire hazards. Emily Williams, Better Homes & Gardens, 3 June 2026 Power strips are not intended for high-energy appliances like refrigerators, space heaters, microwaves, or air fryers. Jessica Safavimehr, Southern Living, 28 May 2026 In fact, in some facilities, racks packed with AI chips can produce heat comparable to dozens of space heaters running continuously. Rupendra Brahambhatt, Interesting Engineering, 16 May 2026 Turn it off when leaving a room and don't go to sleep with a space heater on. Jennifer McRae, CBS News, 6 May 2026 See All Example Sentences for space heater

Word History

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of space heater was in 1913

Browse Nearby Words

Cite this Entry

“Space heater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/space%20heater. Accessed 5 Jun. 2026.

Kids Definition

space heater

noun
: an usually portable device for heating a small area
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