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neither of which should be burnt by householders.
You know your stuff! Nothing should really be burned by householders, or anyone else. Air pollution kills more people than smoking cigarettes, and wood burning is in the top two causes along with transport emissions.
On a positive note: I got an unescessary furnace at an industrial estate where I work shut down as it was slowly killing workers. Also had a really positive response from local councillors where I live on stopping bonfires during the coronavirus crisis.
And thank you!
This one of the few areas of expertise or knowledge that I can share with the forum.
After tanalised timber we can them move onto (melamine-faced) mdf
and
(phenol-formaldehyde resin-bonded) plywood,
neither of which should be burnt by householders.