How long for wood to season?
I’m approaching my first winter relying on a wood burning stove as the sole heat for the house, so have become a bit obsessed with any fallen wood I see. The strong winds this week deposited three fairly large ash trees pretty close to my house 🙂
With the farmers expressed permission, I tidied one up into my car, probably wrecked the rear springs, and spent the evening with the chainsaw and splitter. Feeling very manly right now.
The largest bits were about a foot diameter, and I’ve quartered them. How long till they’re good to burn please? I’m keeping them under a a tarp outside, decent airflow around.Posted 6 years ago
Yes, but the relative calorific energy of charcoal is greater than that of wood due to pyrolysis iirc?
By weight maybe but for a given amount of wood you couldn’t increase its energy output by turning it into charcoal. Where would the extra energy come from?Posted 6 years ago
Genuinely asking, I have no idea what pyrolysis is 🙂
Yes, but you decrease its mass as the water is removed.
Heating will achieve this but if you increase the passing air flow at the same time, more moisture will be removed. The analogy would be washing on the line on a hot day then warm windy day.
Pyrolysis <quickly googles to make sure > is heating without oxygen. The air flow in the stack would be oxygen deprived so should aid this.Posted 6 years agotimberMember
As mentioned, ash will burn green, better seasoned, but good enough fresh.
Split it whilst green as it’s easier, will also dry quicker and deeper once split, increased surface area and all that. 3 months somewhere dry and ventilated that gets some sun will see ash good.
As for stacking, our non scientific testing at work suggests that the sheds we slung the logs in dried better than the ones we stacked. Probably more air in them as we get 2 less trailer loads out of themPosted 6 years ago
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