How quickly do super dry logs take up moisture?

[Daniël Bos]

Sure it will take longer than the drying. Amazed how quick you can oven dry a log. Just a few hours and it was done.

 

I doubt that a few hours would have dried it to 0%

moisture migration from the centre of the log would be very slow I'd have thought, especially as the moisture content dropped the moisture conveying capacity will have dropped with it.

 

Perhaps the way to test that would be to get two logs of equal weight, one processed one into small kindling size to enhance its drying capacity (or thin disks might be better?)

I'm willing to bet you'd get the smaller woods dryer by quite a bit.

 

Still an interesting process you've got going on:thumbup:

[Woodworks]

Well the relentless take up of water continues.

 

630g this morning. So 15% already

 

Don't what happened on my last reading but it was wrong. Did think the rate of wetting was a bit fast, anyway it's at 614g today.

[neiln]

Or with the windy weather it's equalised and started air drying again. Hmmm, maybe not.

[Woodworks]

Or with the windy weather it's equalised and started air drying again. Hmmm, maybe not.

 

I like the idea of something drying here at the moment but not a chance

 

Just cant have zeroed the scales properly

[bilke_user]

Been loading a couple of m3 onto the trailer this morning. All sitka spruce felled and processed last february and stored in a large two sided barn on the north west coast of Scotland (not the driest part of the world!} Every log tested today was between 14% and 18%. Not sure kiln dried would be any better or worse

 

http://www.john-mactavish.co.uk/images/wood.jpg

[Woodworks]

Forgot about this but just met the log in the shed. Now 625g

 

Drying has slowed dramatically so does look as if though well kiln dried logs might be dryer when the customer gets to burn them than air dried presuming the supply chain is not too slow. Not sure how much advantage you get from 15% to 20% logs though

[neiln]

so from 543g at 0% on 5th Feb, to 625g which I make 15.1% in 6 and a half weeks of late winter. I suspect it won't get much wetter now as the weather starts to warm up, but if the test had started earlier, say start of december, I'd guess it would of taken on water further and perhaps a little quicker.

[Woodworks]

so from 543g at 0% on 5th Feb, to 625g which I make 15.1% in 6 and a half weeks of late winter. I suspect it won't get much wetter now as the weather starts to warm up, but if the test had started earlier, say start of december, I'd guess it would of taken on water further and perhaps a little quicker.

 

It's been pretty wet at times here neiln. The early winter this year was relatively dry. Had more rain in the last week than all of January I think. Don't think it would have made much difference to be honest. I am sure it will go up a bit more and I will leave it for later measuring.

[Woodworks]

Just met this log again today. Sat in a covered shed all year and now 637 grammes. Forgotten how to the maths but is that 17.3%?  

 

Saw talk on here that logs should below 15% so we would have to kiln to meet that criteria how ever long we dried them for

Edited October 24, 2017 by Woodworks

[se7enthdevil]

only if you want to sell your logs as kiln dry.

 

joinery wood is 8-12% and it does not have to be that dry for good firewood but i consider anything dry if it's under 20% so i think 17% will be fine...