Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

Our End-Of-Year Fundraising Drive is in progress. Please visit out home page to see this and other announcements:     Thank you. --Jody

MMD > Archives > January 2001 > 2001.01.15 > 04Prev  Next

Relative Humidity and the Piano
By Karl Ellison

Howdy -- At this time of year, the piano becomes a little loose due
to the inside air only being 25-35% humidity.  As my electric bill
essentially doubled last month (utility price hike 2x), leaving the
heat up at all times to stabilize the humidity is not an option. In
fact, an automatic set-back thermostat on the heat-pump is used for
off-hours set-back.

There's another problem which I'm experiencing with low humidity.  Some
notes didn't seem as strong as others, so when I took a look today I
noticed that some of the hammers were only striking two of their three
strings.  The butt flange screws had become loose, allowing the hammers
to sway.  Tightening solves the problem, but may cause another problem
when the 80%-90% relative humidity of summer returns and stresses these
screw holes.

According to the MMD Archives, the Steinway people say 68-72 degrees F.,
at 40-60% humidity, is required to be compliant with their guarantee.
Wow -- I can just picture my electric meter grinning if I tried that!

The Archives offered little of how to actually get the humidity into
the piano.  After disastrous results on his house while using a
humidifier, Bruce Clark said he used quart containers of water with
home-made wicks that were spaced on either side of the piano's sound

On a player, the air in the cavity is exchanged throughout the
exhausting action of the bellows, so you're essentially administering
humidity shocks to the instrument each time you use it.  Does anyone
feel that this water-wick method is particularly harmful in any way?
E.g., would I accelerate any rusting?

Karl Ellison
Salem, Massachusetts  U.S.A.

(Message sent Mon 15 Jan 2001, 21:06:14 GMT, from time zone GMT-0500.)

Key Words in Subject:  Humidity, Piano, Relative

Home    Archives    Calendar    Gallery    Store    Links    Info   

Enter text below to search the MMD Website with Google

CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2018 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Pay via PayPal

No PayPal account required

Translate This Page

. .