Dampp-Chaser sold on the internet (cheap)!

[Farrell]

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In Florida, because the RH in most homes stays above 40% RH, we make =
sure that the RH of the soundboard environment does not get =
significantly above 42% (or there abouts) by installing the =
dehumidifier. We don't worry about the RH falling below some 42% ideal, =
because it just ain't gonna happen!

BTW, have you ever measured the RH at the soundboard over a period of =
time? Have you ever observed the RH to remain at a constant 42% RH at =
the soundboard? That only happens in the four-color brochure I'm afraid. =
I'm not DC bashing - I think their products are wonderful and the DC =
systems work great - I love the performance of the one installed on my =
Boston grand. But if you ever stick a high quality hygrometer at the =
soundboard for a while and observe RH at intervals you will find =
significant deviations from the magic 42% RH! What the system does seem =
to do however is help to keep the MC of the soundboard at an amazingly =
constant moderate percentage - and that is what is important for great =
tuning stability.

Terry Farrell
  ----- Original Message -----=20
  From: Matthew Todd=20
  To: Pianotech=20
  Sent: Sunday, September 19, 2004 1:15 PM
  Subject: Re: Dampp-Chaser sold on the internet (cheap)!


  Hey Phil,

  We're talking about keeping the piano at a constant 42%, not making =
sure it doesn't get below it.  There's a big difference.

  Matthew

  Phil Bondi <phil@philbondi.com> wrote:
    Matthew Todd wrote:

    > Piano's environment??? You mean to say that your clients pianos =
never=20
    > drop below 42% relative humidity? Do your clients keep their =
pianos=20
    > on their front porch? If not, then a complete Dampp-Chaser is =
necessary.

    Matthew,

    you are not familiar with the environment in Florida. It is common =
to=20
    have on average 55-60% relative humidity year round, with AC. Open =
the=20
    windows, even in the winter, and it goes up.

    ..so yes, our client's pianos will never see 42% relative humidity=20
    without a DC.

    Phil Bondi(Fl)


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