Solar Kiln Fans Question

      An airflow management problem in a solar kiln. April 15, 2012

We built a solar kiln last year from plans in the Wood Magazine. We have two fans installed. Recently we were loading the kiln and it was hot so we turned the fans on. The plastic that hangs from the fan panel was blowing to the front of the kiln. I thought it would be sucked up to the back of the fans. Is this how the fans should work? The fans do blow to the front of the kiln for sure.

Forum Responses
(Sawing and Drying Forum)
From Gene Wengert, forum technical advisor:
I am not certain how you have done this. Do you have a vertical solid wall (fan baffle wall) with two holes for the fans? Is this located about 18" from the rear wall? Is there a piece of plastic or fabric that hangs down from the fan baffle to the top of the lumber bundle? Is this the plastic you were talking about? If the fans are going to the front, I do not understand how this plastic would also be going frontwards.

From the original questioner:
Gene we have a vertical wall with two fans mounted in it. We have a third hole for a fan but have it coverd. We have a plastic baffle hanging from the fan wall. Iím not sure how far the wall is to the back, but will check. Here are two photos of our kiln.

Click here for higher quality, full size image

Click here for higher quality, full size image

From Gene Wengert, forum technical advisor:
Try wrapping the edge of the fam shrouds with duct tape as it couldbe that you are getting flow or suction off the sides.

From the original questioner:
We covered the fans with tape and added some wood from the fan board to the top of the kiln between the 2x4. That helped a lot. We also put plywood across the ends of the stack to help direct the flow.

Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?

Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Knowledge Base

  • KnowledgeBase: Primary Processing

  • KnowledgeBase: Primary Processing: Kiln Operation

    Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.

    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2019 - WOODWEB ® Inc.
    All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor.
    Review WOODWEB's Copyright Policy.

    The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB

  • WOODWEB - the leading resource for professional woodworkers

      Home » Knowledge Base » Knowledge Base Article