natural draft
Chimney's driving force
Natural draft is airflow created by temperature and pressure differences rather than mechanical fans or blowers.
Warm air rises and draws cooler air in behind it, producing circulation without powered assistance.
The term appears most often in heating and ventilation contexts: a natural draft furnace, natural draft cooling tower.
The chimney relies on natural draft to pull smoke upward.
- chimneyVertical smoke passage
- chimney fluePassage for combustion gases
- flueChimney's inner passage
- updraftUpward air movement
- hot airMeaningless boastful talk
ventilation · airflow · convection · stack · breeze · cooling · cooling tower · tower · furnace · thermal · buoyancy · exhaust · passive · air · rising · heat · kiln · brick oven
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