[pianotech] Dehumidifier rods

tnrwim at aol.com tnrwim at aol.com
Tue Nov 23 20:12:51 MST 2010




Actually what I am saying WRONG to is the placement of the heating rods. If you put a heat source in an enclosed area like in the action cavity then you are drying out not only the action but also the tuning plank.
In my opinion this is detrimental to any piano.
 
Regards
Tony

As I mentioned in my first post on this subject, I though tthe same thing as you do. But after tuning many grands over 3 years, I have yet to find one with even one weak tuning pin. 

Wim






-----Original Message-----
From: Tony Caught <acaught at internode.on.net>
To: pianotech <pianotech at ptg.org>
Sent: Tue, Nov 23, 2010 1:16 pm
Subject: Re: [pianotech] Dehumidifier rods



Hi Wim,
 
Love to live in Hawaii where things are so constant (possibly because it’s the centre of the world and surrounded by water) but I live on the worlds largest island “Australia” and we have many dry spells caused by winds from over large land masses of dessert or something. I do stand corrected though, there are many places where the humidity will remain relatively constant. From a Government source in Hawaii “Humidity may vary slightly on a daily basis, with an average of 63% humidity in Honolulu, and between varying climate zones and elevation.” One must assume that at some time the humidity does actually fall below 70%.. All areas have different terrains that effect the humidity content of the air regardless of what area you live in.
 
Actually what I am saying WRONG to is the placement of the heating rods. If you put a heat source in an enclosed area like in the action cavity then you are drying out not only the action but also the tuning plank.
In my opinion this is detrimental to any piano.
 
Regards
Tony
 
Tony Caught
acaught at internode.on.net
 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of tnrwim at aol.com
Sent: Wednesday, 24 November 2010 5:11 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Dehumidifier rods

 
 

Anywere that 
there is high humidity there are also periods of low humidity. 


Tony 

 

With all due respect, that statement is wrong. In Hawaii, and I presume in other tropical areas, like Singapore, the humidity NEVER drops below 70%. Surpisingly, the humidity rarely goes over 90%, either. But it is always in that range. 

Wim

 

-----Original Message-----
From: Tony Caught <acaught at internode.on.net>
To: limhseng <limhseng at gmail.com>; pianotech <pianotech at ptg.org>
Sent: Mon, Nov 22, 2010 11:25 pm
Subject: Re: [pianotech] Dehumidifier rods

Hi Lim,
After working in Darwin for 2 decades I will say wrong wrong wrong. Anywere that 
there is high humidity there are also periods of low humidity. Both rods have 
been installed in "hopefully closed areas" and when the humidity drops down to 
say 40% you can assume that these rods are going to reduce the effective 
humidity level down to about 25% causing the action to become loose and the 
soundboard to dry out to lower than it should be. Even fitting a humidistat to 
near the soundboard will not stop the action from cooking. One way only to do it 
properly, full climate control system with under cover under the soundboard, 
keep thr lid closed and close the key fall when not in use.
 
Tony
 
Tony Caught
acaught at internode.on.net
 
 
-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of 
limhseng at gmail.com
Sent: Tuesday, 23 November 2010 3:08 PM
To: pianotech at ptg.org
Subject: [pianotech] Dehumidifier rods
 
Hi list
Attached 2 pics of heater rods(15watts) in a grand piano. The heater on the 
soundboard according to the tech that installed it helps to prevent rust. The 
other rod in the action cavity is the standard installation in our hot and humid 
climate. Its on 24/7. Your views pls.
Thanks!
Lim
Sent from my BlackBerry Wireless Handheld Powered by Gee! from StarHub
 
 


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