Whole room humidity control better than Dampp Chaser. ( Right?)

[AlliedPianoCraft]

Cy, the DC unit can't physically put out enough moisture to control the humidity a room, the action or the pin block. If it did, I wouldn't have read 15% humidity in the room when I tuned the piano. As I wrote before, after 6 week the humidity in the room was up to 40% and the pinblock was back to normal.

A church is another story. Congregation enters, humidity goes sky high. Congregation departs humidity drops. That is the one place I *would* use a DC unit. I would also add a string and undercover. That's the only way you have some control in a church of keeping a piano in tune. You then just hope for the best for the action and pinblock.

Al Guecia
  ----- Original Message ----- 
  From: Cy Shuster 
  To: Pianotech List 
  Sent: Monday, February 18, 2008 4:39 AM
  Subject: Re: Whole room humidity control better than Dampp Chaser. ( Right?)


  What is the difference between a DC humidifier in a piano, and a room humidifier sitting even farther away from the action cavity?

  If a gallon of water a week disappears into the air, it doesn't matter whether it's from a box sitting on the floor or one hanging under the piano.  Humid air from a DC gets into the action cavity the same way dry air gets in there without a DC.

  Sure, whole room humidity control is great, and there are all kinds of special situations (like the church I had that was built *over* a stream), but it's inconsistent to argue that DC moisture can't enter the action cavity, but humid air from a ceiling vent can.

  --Cy--
  ABQ, NM
    ----- Original Message ----- 
    From: Greg Newell 
    To: 'Pianotech List' 
    Sent: Sunday, February 17, 2008 10:36 PM
    Subject: RE: Whole room humidity control better than Dampp Chaser. ( Right?)


    Al,

                    I agree that DC units do not address the pin block in a grand piano. Have you also noticed that the brochure seems to suggest that it controls humidity in the action cavity as well? I believe that it's even a bit of a stretch to claim that it helps to prevent rusty strings in a grand as the pictures would seems to indicate. Perhaps that's different with string covers but that's not stated. I wish the pictures would be re-taken showing upright keys, actions, strings and pin block drawings. It sure would save a lot of time I spend in educating my customers.

     

    Greg Newell

    Greg's Piano Forté

    www.gregspianoforte.com

    216-226-3791 (office)

    216-470-8634 (mobile)

     

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