Dampp Chaser and Grand Action

[Roger Wheelock]

Hi David,

The challenge has occurred with higher wattage dehumidifiers that aren't
controlled by a humidistat.  We have heard of a few problems over the 56
years the company has been in business.  Since we do not want to harm any
pianos, our position can be considered conservative on this issue.

I am sorry I can't be more helpful with specific guidelines to help you out
in this situation.

Roger


----- Original Message -----
From: "David Love" <davidlovepianos@earthlink.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, August 26, 2003 11:16 AM
Subject: Re: Dampp Chaser and Grand Action


> 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
> > >
> > >
> >
>
>
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
>
>