I installed a damp-chaser complete grand system, with an additional 36" dehumidifier back before Christmas in a 5' Kawai grand. Although it seemed to do very well through the dry New Hampshire Winter, a fresh tuning I laid on the piano in April went nuts within a week. The customer understands that the April tuning was done at just the wrong time, (the weather had just changed from Winter dryness to Spring warmth & rain), but was hoping for a more dramatic improvement in tuning stability. One intersesting point he made was that he has still been filling the humidifier with water about once every two weeks (half the winter consumption rate). Should he just disconnect the humidifier unit once the central heat is off for the season? The installation has two de-humidifiers, one located behind the belly rail and the other just forward of the rear leg, but both mounted below the posts. Should I perhaps be thinking of installing a short one up in between the posts? Or replacing an existing rod with a higher wattage? Mark Dierauf
This PTG archive page provided courtesy of Moy Piano Service, LLC