Terry, Don't they mention this in the literature? I think I read that this is by design. Something about creating an enviroment that is not suddenly changing all the time. John Formsma Blue Mountain, MS -----Original Message----- From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf Of Farrell Sent: Wednesday, March 08, 2000 9:17 AM To: pianotech@ptg.org Subject: Humidistat Performance Hello List: I have been monitoring performance of DC humidistats in my shop. I am finding that the relative humidity (RH) on-off points for the humidisats (dehumidifier outlet) are in the 55% to 65% range, rather than somewhere centered around 42%. I have done my field testing using several different humidistats. Has anyone else monitored the performance of humidistats? I am having trouble understanding why my observations would vary so much from what I understand to be advertised. Terry Farrell Piano Tuning & Service Tampa, Florida mfarrel2@tampabay.rr.com
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