This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hi Don, With respect, even when and upright is against a wall back covers improve the response of DamppChaser systems. That might not be so in a more forgiving climate. But where I live is not forgiving *at all*. (4% to 84% yearly) That's even more than here, where we bottom out at about 12-15% inside (top range the same as yours). Everything we do helps, and that cover definitely helps. One thing we always do for our own clients is use two dehumidifiers in uprights, even small ones. The second one goes above the keys, anywhere from 8-25 watts depending on various factors. That gives us incredible stability. I always enjoy your knowledgeable posts. Best regards, Ruth ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/dd/07/db/e7/attachment.htm ---------------------- multipart/alternative attachment--
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