Jacob
What goes around comes around.
There's a lot of opinion but doesn't seem to much actual evidence of risk with mdf burning. If any turns up I'll take note.A scull about the various information sources concerning MDF, particle board, chipboard and other man-made boards containing a lot of glue and other stuffs besides the wood will reveal an overwhelming case against burning them. In some places its also illegal, because of the pollutants. The people most at risk are those inside the house in which its burnt.
Personally I avoid the stuff as far as I can. I've used one sheet in the last 12 years, for jigs and the like, which are all still in the shed. Its skanky stuff really, although admittedly useful for some things. But its everywhere, these days.
There's more and more evidence that such stuffs have slow but unavoidable effects on good health. These effects can be hard to notice or quantify - yet they have been in the last few decades. Look it up yourself, from sources you trust. Burning it is probably the worst thing you can do with it. It isn't danger-free in the landfill, or even in yer wardrobe from Claptrappery-R-Us; but that's not as bad as turning it into smoke and gas then breathing in the cocktail.
I suppose you can argue that life expectancy has increased in the modern age, largely through medicine and better conditions/food of various kinds. This in no way reduces the danger of burning MDF or the careless use of many other toxic substances. On the other hand, who wants to live forever? Still, deliberate shortening of one's life to save a few groats now seems a poor equation.
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I understand that laws may be in the offing to reduce or eliminate wood burning altogether in more densely populated areas, as was done with coal burning when the truly bad smog in London, in the 1950s, killed quite a few. What'll 'ee do then, eh? Get yer solar panels now; perhaps even a windmill!
In any case I only burn what comes my way. I don't use it in general.
It burns cleanly, hot, no smoke or smell. Not like plastic which emits a lot of smoke.