the means of heating objects or persons by radiation in which the intervening air is not heated.
a system for heating by radiation from a surface, especially from a surface heated by means of electric resistance, hot water, etc.
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Origin of radiant heating
First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a system of heating a building by radiant heat emitted from panels containing electrical conductors, hot water, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012