On 18/03/2019 21:50, % wrote:
On 2019-03-18 2:41 p.m., Vir Campestris wrote:
On 18/03/2019 05:00, FMurtz wrote:
Why does it matter? I have a wood heater and it does not matter how
wet the wood is once you have started the fire, It dries out quickly.

Damp wood results in condensation in the flue. Combined with the
products of the lower temperature combustion - which will include tars
- this can be a bit nasty for the poor old flue.

but the flames light up the yard so nicely

A wood tar chimney fire tends to burn with a pale blue flame and a
moderate amount of noise. Anyone burning wet wood deserves what they
get. They are likely not to bother sweeping the chimney either.

--
Regards,
Martin Brown