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<DIV><FONT face=Arial>Dear Andrew:</FONT></DIV>
<DIV><FONT face=Arial>Thanks for the reply. It was most helpful. The Steimway
has a bar in it already, but it is not connected to any kind of controlling
device. Do we need a new system with a regulater to shut the bar off so that the
piano does not "bake"?</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Wayne Williams</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=anrebe@sbcglobal.net href="mailto:anrebe@sbcglobal.net">Andrew and
Rebeca Anderson</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 08, 2007 3:27
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Coastal Dampp-chaser
calibration</DIV>
<DIV><BR></DIV>Thanks Terry.<BR><BR>At 01:31 PM 8/8/2007, you wrote:<BR>
<BLOCKQUOTE class=cite cite="" type="cite"><I>"With a DC system the
hygrometer controlled dehumidifier..."<BR></I> <BR>Hygrometer is an
instrument one can use to measure relative humidity in air. Humidistat is an
electronic device that senses RH and can regulate a dehumidifier and/or
humidifier.<BR> <BR>Terry Farrell<BR>
<DL>
<DD>----- Original Message ----- <BR>
<DD>As Steinway generally puts is, controlling the whole room is best but
not always feasible and when that is the case a DC system is the way to
go. If I understand you correctly, you have measured the humidity
and have not noticed any lows dipping into the forties during the active
season there. If that is the case, a DC dehumidifier only system
with under/back covers would prove adequate for the summer performance
season. The low winter temperature if kept steady will probably keep
a steady humidity profile for the pianos. With a DC system the
hygrometer controlled dehumidifier bars will shut off when they are not
needed and you don't have to worry about baking the piano.<BR><BR>
<DD>I doubt a full system with humidifier would be properly maintained if
the camp is shut down for the winter. You mention they are in a room
kept to 50 degrees. I don't know how cold that area gets but it is
possible that humidity levels are acceptably high-enough during the
winter. Of-course putting a hygrometer in the room that tracks high
and low extremes would reveal any problems. Since it is a presumably
small room it may be possible to plumb in a low maintenance humidifier if
that is needed for the winter.<BR><BR>
<DD>Good Luck,<BR>
<DD>Andrew Anderson<BR></DD></DL></BLOCKQUOTE><BR>
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