Don wrote: > Hi Jeff, > > I would go with dc systems with bottom and back covers. Room type > humidifiers are really not suitable in your situation--run them dry over > the weekend and you will be retuning the instruments. Don, we have room humidifiers in our concert hall and practice hall because the instruments are being moved around so often that DC units are not appropriate. These systems are part of the ventilation system for that part of the building and are connected to the water lines so they never run out of water. Once a month there is a filter cleaned or changed and thats it. 15% RH is really low. Pianos will get affected for sure, but then so will practically ever thing else. Computers and electronics are in danger from static charge build ups, outside humidity invades the innner walls of the buildings causing structual damage, and for us living sorts, we can get all kinds of problems with skin and eyes and lungs. Actually, we had a similiar problem to the one Jeff describes in our concert hall 5 years ago with humidity levels dropping below 25 % over most of the winter. The health authorities got involved and threatened to shut the place down. -- Richard Brekne RPT, N.P.T.F. Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html
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