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Author Topic: drying pine  (Read 215 times)

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Offline xlogger

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drying pine
« on: July 09, 2017, 06:56:44 am »
I put some 1" pine boards in DH kiln yesterday that has been air drying for 6 months now. I check them around 13%. After getting them dry to below 10% do you run the temp up to kill insects on pine also?
Timberking 2000, Turbo slabber Mill, 584 Case, Bobcat 773, solar kiln, Nyle L-53 DH kiln

Offline Ianab

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Re: drying pine
« Reply #1 on: July 09, 2017, 07:07:31 am »
Because it's pine, and it's well air dried, I would say just crank up the temp and get the last 5% moisture out of it, and cook any bugs at the same time.

If wood is well air dried it's hard to mess up in a kiln, so crank things up and finish the wood off.  Couple of days.
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Offline WDH

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Re: drying pine
« Reply #2 on: July 09, 2017, 07:34:04 am »
I sterilize it just like hardwood which also serves to set the pith. 
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Offline xlogger

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Re: drying pine
« Reply #3 on: July 09, 2017, 08:22:30 am »
ok thanks
Timberking 2000, Turbo slabber Mill, 584 Case, Bobcat 773, solar kiln, Nyle L-53 DH kiln

Offline xlogger

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Re: drying pine
« Reply #4 on: July 09, 2017, 12:12:45 pm »
just check the pine and it shows in the 9% was thinking about doing what you suggested and turn up the heat but its dripping steady about two drips a second. Maybe my top boards are dryer than others. Would you go ahead with the heat or wait till dripping slows down?
My last load I waited till dripping slow and it showed about 6-7%. I read here once that 10% is good enough for pine.
Timberking 2000, Turbo slabber Mill, 584 Case, Bobcat 773, solar kiln, Nyle L-53 DH kiln

Offline WDH

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Re: drying pine
« Reply #5 on: July 09, 2017, 07:59:31 pm »
Less than 10% has been fine for me.  When you ramp up the temp and open the doors to refill the wet bulb bottle during the sterilization cycle, you will discharge some water vapor, so if you are at 9% now and heat up to 150 degrees and hold it for 24 hours, you will lose a bit more water and come out perfect. 
Woodmizer LT40HDD35, John Deere 2155, Kubota M5640SU, Nyle L53 Dehumidification Kiln, and a passion for all things with leafs, twigs, and bark.  hamsleyhardwood.com

Offline YellowHammer

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Re: drying pine
« Reply #6 on: July 09, 2017, 11:08:46 pm »
I also anticipate losing 1% or sometimes a bit more on the sterilization and cool down stage as WDH says. 

I just plan for it, like Kentucky Windage. 
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