FW: damp chasers

[Roger Wheelock]

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Hello List,

Here is a bit of the Dampp-Chaser point of view on some of the areas of =
discussion in this thread.  I hope this is helpful.

1.    50-watt dehumidifiers in a vertical system, in our opinion, do not =
significantly alter pitch during a tuning if they were to come on.  We =
are,however, currently talking to a number of experts to gather =
additional opinions on this.  There is a simple solution for any =
technician who is concerned.  Shut the Dampp-Chaser System off prior to =
doing the tuning.  Incidentally, we manufactured the Ultra V system in =
the past.  One of the benefits to this system was that the =
dehumidification came from the back of the soundboard and there was =
little if any rise in heat in the front.  Unfortunately, we only sold a =
handful of these so we discontinued the model.

2.    The recommended orientation of a Vertical System installation is =
so the Humidistat functions correctly.  It needs to get primary feedback =
from the Humidifier.

3.    The Undercover was designed to create a more confined space for =
the system to operate.  We recommend it for drafty environments where it =
is difficult to stabilize a grand piano.  I will have some interesting =
data to present in Chicago showing what it does in an institutional =
setting.  The data was generated by Vince at BYU.

4.    Maybe I am not understanding this clearly, but we advise against =
putting a Dehumidifier in the action.

I look forward to seeing any of you who will be going to Chicago.  I =
will be teaching a new class at the convention and I will be =
demonstrating dataloggers at the Cyber Cafe.

Roger Wheelock, VP
Dampp-Chaser Corp.
  ----- Original Message -----=20
  From: Clyde Hollinger=20
  To: pianotech@ptg.org=20
  Sent: Friday, June 14, 2002 7:33 AM
  Subject: Re: FW: damp chasers


  Friends,=20
  I would follow Dampp-Chaser's recommendations when installing the =
components.  I see some rather strange variations from time to time.  I =
figure, if the company has done research on where to place the parts for =
greatest effectiveness, why try to second-guess them?=20

  Regards, Clyde=20
   =20

    P.S.  I always install them as low as possible, clearing the pedal =
stuff, and toward the front/kickboard.  Dampp-chaser has pictures of =
installations, schematics, etc., none are clipped under the keybed, =
probably for some good reason (one being that lots of the heat would run =
out of the crack above the kickboard and under the keybed, rather than =
disperse throughout the piano more evenly).

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