radiant heat

American  

noun

Thermodynamics.

1. heat energy transmitted by electromagnetic waves in contrast to heat transmitted by conduction or convection.

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radiant heat British  

noun

1. heat transferred in the form of electromagnetic radiation rather than by conduction or convection; infrared radiation

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Etymology

Origin of radiant heat

First recorded in 1500–10

Example Sentences

See Examples For:

radiant heat

This includes people employed in construction and agriculture as well as those who work in indoor environments with radiant heat and no air conditioning, such as pizza kitchens.

From MarketWatch ● Jun. 30, 2026

It measures not just the air temperature but takes into account humidity, radiant heat from the sun and the court surface temperature.

From BBC ● Jun. 28, 2026

“Window panes will burst readily under radiant heat and that’s a very common source of entry for embers,” said Syphard, who recommends double-pane windows, along with fine-mesh screens on vents.

From Los Angeles Times ● Feb. 6, 2025

I responded: “I don’t want any air space. Put the insulation in direct contact with the radiant heat tubes and do whatever is necessary to ensure it never falls down.”

From Seattle Times ● Jan. 25, 2024

I tried the methods heretofore pursued, and found them unavailing; oxygen, hydrogen, nitrogen, and atmospheric air, examined by such methods, showed no action upon radiant heat.

From The Glaciers of the Alps Being a narrative of excursions and ascents, etc. by John Tyndall