Dampp Chaser and Grand Action

[David Love]

Roger:

Is the recommendation of the company based on real data that a DC in this
are will cause problems, or is it simply a precautionary and liability
issue?  I have found pianos with DC's in them in this area with no apparent
ill effects.  Generally, I have removed them, but in this case it seems
like a good solution for an existing problem.  My plan was to use a 48-15
mounted to the action brackets and connected to the humidistat located
beneath the soundboard.  Since the action cavity is slightly open to the
top, I figured the humidity in the action cavity would never go lower than
the underside of the soundboard.  As Don mentioned, a liner against the
underside of the pinblock could also be added if necessary.  

David Love
davidlovepianos@earthlink.net


> [Original Message]
> From: Roger Wheelock <roger@dampp-chaser.com>
> To: <davidlovepianos@earthlink.net>; Pianotech <pianotech@ptg.org>
> Date: 8/26/2003 6:44:18 AM
> Subject: Re: Dampp Chaser and Grand Action
>
> Hi David,
>
> Dampp-Chaser recommends keeping dehumidifiers out of the action.  This is
> based on our experience and the concerns of piano manufacturers.
>
> Dampp-Chaser developed a pin block dehumidifer a number of years ago.  The
> challenge was two rather large holes had to be drilled to gain access to
the
> action.  Members of our local PTG chapter took a look and explained that
no
> technician would want to drill those holes.
>
> We are open to any ideas you folks might have.  Feel free to email me off
> the list.
>
> Roger
>
>
> ----- Original Message -----
> From: "David Love" <davidlovepianos@earthlink.net>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Tuesday, August 26, 2003 2:01 AM
> Subject: Dampp Chaser and Grand Action
>
>
> > What's is the general recommendation for putting a DC on or near the
> action
> > brackets on a grand.  This particular piano has recurring problems with
> > seizing jacks and sluggish hammer flanges due to high humidity.  I don't
> > generally prefer putting a heater bar under the pinblock, but I'm
tempted
> > in this situation to mount it on or near the action brackets so that it
> > might radiate a bit of heat toward the jacks and hammer flanges.  Any
> > experiences out there.  How low can I go and still get some benefit
> without
> > down side potential: 15W, 25W???  The piano will be fitted with a
regular
> > DC system (dehumidification only).  Appreciate any comments.
> >
> >
> > David Love
> > davidlovepianos@earthlink.net
> >
> >
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
> >
> >
>