Damp Chaser Question

[Greg Newell]

Greetings listees,
         I have a customer who is going to build a piano closet off of 
their stage. I'd like to ask the opinion of the lists as to how to outfit a 
humidity control system in this closet. My thought was to daisy chain some 
systems together or perhaps two or more entire separate systems to keep the 
piano controlled ( I know, I know, control is an illusion) while it is in 
storage. Since this is a performance instrument I recommended controlling 
the box rather than the piano since some part of the Damp-Chaser system 
will inevitably be visible if mounted on the piano itself. My customer writes;

The Apartment Complex for our Asian Musical Tenant will be:
4'-0'' High
6'-0'' Wide
11'-0'' Long which equals 264 Cubic Feet inside,
(less a little bit for corner tangent framing)
Hope this helps. It sounds like box, rather than piano mounting is
better.
The big question for me is ventilation. Electrical heater bars that run
24/7 inside a wooden box sounds like a hazard waiting to occur.

Can someone more experienced than I (even Roger if you're reading these 
things) suggest a system of components that will adequately cover the need? 
The piano is in Northern Ohio and is normally subject to RH swings of 
roughly 15% to 85% or more.

I'd also like to ask those who have done this what one can expect when 
pulling the piano out of the closet for a performance. Does it goes 
unstable right away or what?

Thanks in advance for your input.

Greg Newell
mailto:gnewell@ameritech.net