Friends, I believe it was Terry Farrell who mentioned that the humidistsat is NOT to hang from the heat rod in a vertical piano, if the humidifier is not part of the installation. This quote is from the instructions that come from Dampp-Chaser with the humidistat: "3. If a Humidifier is not included in the installation, attach the Humidistat to the side of the piano, as high as possible but still under the key bed with the screws provided. It may be installed in a vertical position. Steps 2, 4, and 6 are not necessary. Installed in this location ensures that it receives feedback from the Dehumidifier and can react accordingly." Terry mentioned that he had never seen such an installation done by any other technician, so when I had one to install two days ago I determined to do it "correctly." However, this piano was a spinet, with an action support beam well below the keybed and wooden support blocks on each side below the beam. To mount the humidistat below all that would put it about half way between the keybed and the floor, which in my opinion was too low. I briefly considered hanging it from the heat bar as I had always done, but finally decided to screw it underneath the action support beam, facing down. That puts it about three inches directly above where I located the dehumidifer. Questions: Does anyone see a problem with what I did here? The humidistat will certainly get feedback from the dehumidifier in that location. I will be going back to tune the piano in four weeks and can make changes at that time if necessary. Main question: How much difference does the location of the humidistat make anyway, when installed in a small upright? I tend to think that, while there may be some locations that would be totally inappropriate (the piano floor, for instance), there is a lot of latitude in where the thing can go and still have good results (assuming no water tank now). Right or wrong? Regards, Clyde Hollinger, RPT Lititz, PA, USA
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