Fretwork | How to make fires more Toxic
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How to make fires more Toxic

How to make fires more Toxic

How to make fires more toxic.

Every school boy knows that if you throw a damp piece of wood onto a burning fire it will make it more dirty, smoky and smelly. This is because in order to burn the wood must first reach the burning conditions of the fire and  the water present must be driven off. However, whilst that is happening the fire loses heat and reverts to a condition where its efficiency in turning fuel into heat is impaired. See The Fire Triangle.

This feature of how fires burn has been fundamental in Man’s development. Metal smelting was not possible unitl man had learnt to enhance a normal fire into a condition where oxygen (from the air) was forced into the fire making for a significant increase in heat production in conditions of maintaining a good supply of  fuel. North American native indians used the interruption of a clean burn situation (laying over a {fire?} blanket) to produce more smoke and effectively interrupting the clean burning conditions of the fire.

All Man-Made interventions make fires burn more “dirty” (or toxic).

STUART thinks it’s a pity that more people don’t remember this when talking about the toxicity of fires.

Peter Wragg
Peter Wragg
pjw@fretwork.org.uk
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