drying box

[Farrell]

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Hi Gayle. It really doesn't take much for building a drying box. I have =
an box that is just a plywood 8' x 6' x 1' box with 3/4" foil-backed =
foam insulation and performs exellent. The doors have a foam seal - but =
I usually leave a small portion of it open. Most any box is going to =
equilibrate with the room no matter what you do. I keep my shop at 45% =
RH. All you need is a good quality device for monitoring RH and temp. =
(which I know you know all about that!). I can easily achieve 6% MC at =
about 90 or 95 degrees F. What MC are they shooting for?

Bottom line is that monitoring the temp and RH accurately is probably =
more important than drying box construction specifics. Are they aware of =
the chart for RH/temp/MC relationships? It is available from somebody =
..... ?U.S. Forest Service? ......... some gov. source - I can send that =
also.

Terry Farrell
  ----- Original Message -----=20
  From: Roger Wheelock=20
  To: Pianotech=20
  Sent: Tuesday, September 16, 2003 4:57 PM
  Subject: Fw: drying box


  Hello list,

  Gayle asked me to post this.  Please respond to her directly.  Thanks!

  Roger

  ----- Original Message -----=20
  From: Gayle Mair=20
  To: pianotech@ptg.org=20
  Sent: Tuesday, September 16, 2003 3:08 PM
  Subject: drying box


  Dear list,

  A harmonica manufacturer in PA has requested information on how to =
make a drying box for harmonica combs. The combs are made of pearwood.  =
Can anyone give me specifics about materials, sealants (or not), etc. =
for making a box similar to what you use for drying soundboards prior to =
repair?  I believe the concept would not vary greatly for harmonica =
combs.

  Thanks in advance for your input.

  Gayle Mair
  Dampp-Chaser Corporation
  P.O. Box 1610
  Hendersonville, NC 28793
  USA
  tel:  (800) 438-1525
  fax: (828) 692-8271
  gayle@dampp-chaser.com
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