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Forum topic by Dallas posted 06-04-2012 11:19 PM 1862 views 1 time favorited 3 replies Add to Favorites Watch
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Dallas

3047 posts in 1177 days


06-04-2012 11:19 PM

I’ve been thinking lately about building a small vacuum kiln, probably only large enough to do maybe 20-50 board feet at a time.

I looked around and really couldn’t find any information on a unit this small.

What I am looking for is how much vacuum is needed?
What about heat transfer? If I use a water bed heater between the layers of wood will I be able to get enough heat transferred to the wood itself? (Remember, a vacuum is an insulator and does not allow heat to be transferred).

To begin with I won’t be looking for a perfect outcome since, as I understand it, there is a large learning curve involved in the process. Later, I may actually be able to make this work.

Thanks for any input!

-- Improvise.... Adapt...... Overcome!


3 replies so far

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hairy

2067 posts in 2222 days


#1 posted 06-05-2012 11:58 AM

http://vacuumkilndrying.com/

-- the last of Barret's Privateers...

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Dallas

3047 posts in 1177 days


#2 posted 06-05-2012 03:33 PM

Not sure if that link is a “Ted’s” or not, but any site that pushes me to purchase without more information is a no-go on my list.

Thanks anyway. I found that site when I was googling before I asked the question on the board.

-- Improvise.... Adapt...... Overcome!

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killerb

150 posts in 1088 days


#3 posted 06-05-2012 05:02 PM

woodweb has lots of great information on vacuum drying. I have talked with both guys have sell large vacuum kilns. They are great resources. bob

-- Bob www.bobkloes.com

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