Dampp Chaser and Grand Action

[Don]

Hi David,

Yes you can do that--but you will need a second controller for the one rod.
Use the lowest possible wattage. 

If you are going dehumidification only and use a bottom cover there may be
enough warmth to do nice things to the action provided the lid is kept
fully closed except when the piano is in use, so I would try that first and
then "retro fit" the action cavity bar. 

I'd also be tempted to try to protect the pinblock with something like
"space cloth" which is a multilayer flexible laminate material, if you do
add on a cavity bar.

http://www.nasatech.com/Briefs/Feb98/KSC11938.html

At 11:01 PM 8/25/2003 -0700, you wrote:
>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
>
>

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.

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