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lumber drying method?

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Forum topic by bent posted 159 days ago 298 views 0 times favorited 8 replies Add to Favorites Watch
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bent

38 posts in 564 days


159 days ago

i had an odd thought today about drying green lumber. my father is a farmer, and on his farm is a grain bin. attached to the grain bin is a heater and a giant drying fan. when grain is harvested and put into the bin, it is dried to reduce it’s moisture content and prevent rotting. anyone in the midwest should know what i’m talking about. my father is talking about retiring from farming soon, meaning that this grain bin will more than likely be sitting empty. does anyone know if this bin/dryer system could be used as a lumber kiln? i’m pretty sure it’s a similar process to kiln drying lumber. at least the goal is similar if nothing else (reduction of moisture content). let me point out that i know very little about kiln drying, so maybe there’s reasons it wouldn’t work? if it’s a stupid/crazy idea that won’t work, please let me know before i waste any time on it.

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teenagewoodworker

2481 posts in 663 days


158 days ago

how hot does the heater get. i know that when kiln drying i think its like 120 degrees that they aim for in the beginning to make sure that any bugs that are in the wood are killed off. and then just steadily decreasing the heat over the next couple of months.

View Julian's profile

Julian

698 posts in 421 days


158 days ago

Go over to woodworkingtalk.com, and post this in the forestry and milling section. There’s plenty of guys drying their own lumber over there that will give you all the knowledge.

-- Julian, Park Forest, IL

View a1Jim's profile

a1Jim

16851 posts in 472 days


158 days ago

Drying wood has a lot to do with air circulation and the wood being stacked so it can dry equally on all sides plus a way for moisture to escape.

-- Jim from Heirloom Woodshop Southern Oregon

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socalwood

968 posts in 499 days


158 days ago

It will probably work great on softwoods like pine and cedar . On hardwoods your setup will likely be too much too fast and end up destroying the wood . Wood drying is both science AND art . There is a great deal of info on the internet detailing this subject .Also do the math- the amount of time required to dry wood with your system will likely be cost prohibitive – -

View noblevfd's profile

noblevfd

15 posts in 352 days


158 days ago

grain drying bins are set up to move high volumes of air through the system we dry down 4000 bu of corn in about 48 hrs. using on average 400 gal. of propane so I would think you would have to completely revamp system to even think about drying lumber in a bin for months but hey you never know till you ask keep those ideas coming I don’t know much about drying lumber but I do dry corn on the farm

noblevfd god bless

View Bill Davis's profile

Bill Davis

36 posts in 819 days


158 days ago

Here’s an excellent source to learn more than you ever wanted to know about kilns.
http://www.woodweb.com/KnowledgeBase/KBPPKilnConstruction.html

View bent's profile

bent

38 posts in 564 days


158 days ago

thanks bill, that’s a very informative article. after reading it, i’m in agreement with noblevfd and socalwood. the current system would dry it out too fast and damage the wood. oh well, it was just a thought.

View Dusty56's profile

Dusty56

3466 posts in 583 days


158 days ago

At least you had the courage to ask the question : ) good idea , but I was wondering how you would regulate the temperature and exhaust the moisture seeing as I’ve never operated a grain bin before.

-- You know you're getting old when you know the difference between you're (you are) and your (belonging to you) AND how to use them in a sentence .

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