HI: I would not install dehumidifier bars without a humidistat also being connected. I have installed Dehumidifiers without a Humidifier tank in a Valley-location Theatre (outdoors) where I know there is not going to be a call for more moisture. These pianos (2) have humidistats and everything is disconnected at the end of the season. Bob Bergantino, RPT Willoughby Hills, Ohio
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