Radiant Heat 3 : Heat energy carried by electromagnetic waves that can pass through gases without warming them, but that increases the temperature of solid and opaque objects. See: Radiated Heat
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}