>...System now recommended by Damppchaser is GPSH 38/25 with bottom cover. >Don Rose... Hi Don, List, As I understand the main purpose of the Dampp-Chaser Grand Undercover in Gayle Mair, President's letter I received under the heading: Which pianos need the Undercover? * Pianos located where air movement is so extreme a Climate Control System could not effectively stabilize them in the past. * Pianos located in situations (near windows, vents, foyers, hallways, etc.) where they are or will be subjected to exceptional air movement after the installation of a System. Also, just for information's sake, they can only be used with a between-the-beams installation of the Humidifier only. Thanks for bringing up that 'bottom cover' again. I had completely forgotten about its existence. Onward Donder, Cupid, Dasher, Dancer, Prancer, Comet, Blitzen, Vixen, Rudolph... (Info about reindeer that you probably didn't know) <http://www.portharbor.com/santa/xsarein.htm> Keith McGavern Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
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