I will probably have to head over to a piano forum, but BBI is often a good initial resource. I have two hollow body guitars, and I use the D'Addario two-way humidification system which works great according to a hygrometer in the case. I would like to find a similar solution for my daughter's piano. The humidity near the piano has been a little low during this cold weather. The hygrometer on the piano is running in the 25% to 33% range over the course of the day recently. The piano is a 1991 Baldwin Acrosonic console. Do you guys worry about humidity, and if so, what do you do to control it? I would rather not use a whole room humidifier as I heard they can lead to condensation in the house and mold.
What system do you have? Do you have a link to it?
Yeah, that's the one I have heard about. My tech was here yesterday, and he said not to worry about it. He said he gets more concerned about high humidity than humidity around 30%.
I think that may be our system as well. Installed and maintained by our technician (aside from refilling).
The question about room or house humidification is a good one. To be honest, I tend to let those systems lapse a bit here and there. The one built into the piano is not necessary if you can be counted on to keep the room in good shape. I could not. For me, it was helpful that every time I walked by the instrument, the LED was either red or green, and for whatever reason, I was motivated more by protecting the instrument than by keeping the humidity in the house at some level.