humidistat

[David Love]

I believe that 42% correlates to a certain EMC at which the soundboard
is, let's say, comfortably compressed.  

David Love
davidlovepianos@comcast.net 

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
Behalf Of Sarah Fox
Sent: Wednesday, January 05, 2005 8:54 AM
To: Pianotech
Subject: Re: humidistat

... and one wonders what is the magic of 42%?  I know it's heresy, but
could 
it be that other setpoints may be more appropriate for certain 
pianos/environments?  If a piano has been accustomed to a high humidity 
environment for the past several decades, is it really smart to dry it
out 
to 42%?  If a piano has been used to living in the desert, it is
necessarily 
smart to humidify it to 42%?  In the end, shouldn't the goal be to find
a 
humidity at which both the client and the piano are happy and to lock it
in? 
After all, is it not the *changes* in humidity that bring about damage
and 
instability, rather than the humidity itself???

Perhaps instead of having an unadjustable unit or a unit with a knob on
the 
front for easy adjustment, you should make your units adjustable with a 
screwdriver.  ;-)

Peace,
Sarah



----- Original Message ----- 
From: "David Love" <davidlovepianos@comcast.net>
To: "'Pianotech'" <pianotech@ptg.org>
Sent: Wednesday, January 05, 2005 11:36 AM
Subject: RE: humidistat


> Hello Roger:
>
> I use the DC products without any complaint or need to find a
> substitute.  I was thinking more for a wood conditioning cabinet than
> for a piano.  But now that you bring it up, it would be nice if DC
made
> a dial up unit compatible with their products for just such a purpose.
> What's the possibility of that?
>
> David Love
> davidlovepianos@comcast.net
>
> -----Original Message-----
> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
> Behalf Of Roger Wheelock
> Sent: Wednesday, January 05, 2005 8:28 AM
> To: Pianotech
> Cc: Gayle Mair
> Subject: Re: humidistat
>
> Hi David,
>
> I use this unit in one of our test rooms at the factory.  (I need to
> control
> the test room at various extremes of relative humidity.)  The dial
> readings
> are not particularly accurate so a good hygrometer is needed for
> calibration.  I think it would work fine in the shop but not for a
> piano.
> Years ago we decided not to build a dial-up unit.  We think a piano
> owner
> might adjust the dial and then either over dry or over humidify the
> piano.
> Our fear is that the piano owner would then file a claim against us
for
> the
> damage.  Maybe we are a bit paranoid, but we pride ourselves on never
> having
> an insurable product liability claim in the 57-year history of the
> company.
>
> Conversely, we have thought about selling our humidistat into the
> greenhouse
> market.  If I remember correctly that Greenair product is kind of
> expensive.
>
> Roger Wheelock
> Dampp-Chaser Corp.
>
>
>
> ----- Original Message ----- 
> From: "David Love" <davidlovepianos@comcast.net>
> To: "'Pianotech'" <pianotech@ptg.org>
> Sent: Wednesday, January 05, 2005 10:31 AM
> Subject: humidistat
>
>
>> Found this product recently.  It will support dampp-chaser products
> and
>> can be dialed to the desired humidity level.
>>
>> http://www.greenair.com/humidistat.htm
>>
>> David Love
>> davidlovepianos@comcast.net
>>
>>
>>
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