How does a heater/fire boil the room by convection? please use some keywords: -dense -particle

please use some keywords:
-dense
-particle

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Answers:    Natural convective heat verbs
Natural convection is a mechanism, or type of warmness transport in which the fluid motion is not generate by any external source (like a pump, fan, suction device, etc.) but just by density differences in the fluid occurring due to heat gradients. In fluent convection, fluid surrounding a heat source receive heat, become less dense and rises. The surrounding, cooler fluid afterwards moves to replace it. This cooler fluid is then heated and the process continues, forming a convection current. The driving force for unprocessed convection is buoyancy, a result of differences in fluid density. Because of this, the presence of gravity or an equivalent force (arising from the equivalence principle, such as acceleration, centrifugal force or Coriolis force) is essential for inherent convection. Natural convection does not operate as it does on Earth in the micro gravity environment of the orbit International Space Station, where other steam transfer mechanism are required to prevent electronic components from overheating.

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Simply because hot air rises because it is smaller quantity dense than cold air. So you own the circulation of cold air human being heated and as it rises, it is replaced by cold air.

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