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 > > > > >
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