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<DIV><EM>"With a DC system the hygrometer controlled dehumidifier..."</EM></DIV>
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<DIV><FONT face=Arial>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.</FONT></DIV>
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<DIV><FONT face=Arial>Terry Farrell</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>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>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>Good Luck,<BR>Andrew
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