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Want to build a Vacuum Kiln

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Forum topic by Dallas posted 680 days ago 1563 views 1 time favorited 3 replies Add to Favorites Watch
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Dallas

2672 posts in 985 days


680 days ago

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

1891 posts in 2030 days


#1 posted 679 days ago

http://vacuumkilndrying.com/

-- brown shoes don't make it...

View Dallas's profile

Dallas

2672 posts in 985 days


#2 posted 679 days ago

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!

View killerb's profile

killerb

148 posts in 896 days


#3 posted 679 days ago

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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