Hi Ron, Terry took the thread to his room dehumidifier, not I. At 04:15 PM 12/2/02 -0600, you wrote: > >>I have a big pile of copies of a full-color beautiful Damp-Chaser >>marketing handout that describes how the use of their dehumidifier system >>keeps the relative humidity (RH) of the atmosphere in the area of the >>piano soundboard at maximum of 42% RH. Why is it that when I place the >>probe of my NIST-certified 1% accuracy hygrometer on top of my Damp-Chaser >>humidistat, it reads 55% RH? When I place the probe on top of the >>soundboard it reads 55%. When I place the probe in the middle of the room >>where the piano resides, it reads 55%. The heater rods are not warm. The >>atmosphere next to the soundboard should be 42%. The room and everywhere >>else around the piano is 55% RH. The humidistat should turn on >>at.......something near 42% RH. I'm looking at the pretty >>graph: http://www.dampp-chaser.com/main.html It suggests that RH won't >>even come close to 55%. Where is the discrepancy? >> >>Terry Farrell > > >Pardon me folks, but while you are busy answering a question on using a >Dampp-Chaser humidistat on a room de-humidifier, wasn't Terry's question >here about a Dampp-Chaser system correctly installed in his piano? That's >how it reads to me, and I'd be curious as to why the heater rods aren't on >at 55% RH too. > >Ron N > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Center of the Arts mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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