heat releasing

/ˈhiːt rɪˈliːsɪŋ/
adjective
  1. Describing something that gives off or releases heat, often as part of a chemical or physical process.
    • Engineers designed a heat-releasing panel to prevent the electronics from overheating.
    • Compost piles are heat-releasing as bacteria break down organic matter.
    • The heat-releasing reaction in the hand warmer keeps your fingers toasty on cold days.
Synonyms