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

[Farrell]

I have to agree with Dean here. My Boston GP-178 grand has a DC dehumidification system with no undercover and no string blanket. The pitch simply does not vary. I do keep the lid closed most of the time - although, often only half closed.

The environment in my Florida home is moderate compared to other areas of North America and elsewhere. We don't have the wild swings of RH that many other areas have, however, RH does range from about a minimum of about 35% to a maximum of about 75% in my home. I have no doubt what-so-ever that a string cover will increase DC effectiveness in more extreme environmental conditions.

Terry Farrell
  ----- Original Message ----- 

  >>A DC system really can't be effective in a grand without a string-cover. 

   

  I have years of anecdotal evidence on scores of installations that say otherwise. Perhaps a string cover increases their effectiveness, but on many of my installations I don't know how. I'm talking about pianos that had +/- 25 cent seasonal variation that went to +/- 2. 

  Dean May  


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  A DC system really can't be effective in a grand without a string-cover.  Even then it doesn't really help the front key-pins.  An undercover is recommended if the place has forced air heating/conditioning.

  My wife's concert grand wouldn't stabilize until I made both additions above.

  Andew Anderson





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