radiant heat

noun

: heat transmitted by radiation as contrasted with that transmitted by conduction or convection

Examples of radiant heat in a Sentence

Recent Examples on the Web
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There are beautiful skylights and radiant heat in the floor. James Alexander, Hartford Courant, 26 Apr. 2026 Mielke also advocates for home hardening – using building materials and construction methods that make your home resistant to embers and radiant heat. Terri Daxon, Oc Register, 16 Apr. 2026 The menu was altered to spare his staff extra radiant heat from the grill. Helen Regan, CNN Money, 30 Jan. 2026 This advice only applies to traditional furnaces, though, because heat pumps and radiant heat take too long to reheat your home. Brandee Gruener, Southern Living, 29 Jan. 2026 See All Example Sentences for radiant heat

Word History

First Known Use

1621, in the meaning defined above

Time Traveler
The first known use of radiant heat was in 1621

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Cite this Entry

“Radiant heat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiant%20heat. Accessed 2 May. 2026.

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