Whole room humidity control better than Dampp Chaser. ( Right?)

[Greg Newell]

Terry,

                That all sounds good and all but it doesn’t hold up with
what I see in the field. I completely agree that it will have a positive
effect with a string cover or blanket but I have not seen it deter rust or
oxidation with only the lid as the insulator. I’m not saying it wouldn’t in
a situation where the entire lid was in use but we all know that the vast
majority of the time the half lid is left open.

 

Greg Newell

Greg's Piano Forté

www.gregspianoforte.com

216-226-3791 (office)

216-470-8634 (mobile)

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Farrell
Sent: Monday, February 18, 2008 3:18 PM
To: Pianotech List
Subject: Re: Whole room humidity control better than Dampp Chaser. ( Right?)

 

The heating rods on the DC system heat the air beneath the soundboard. The
warm air under the soundboard will tend to stay there if undisturbed because
warm air rises (it's less dense). That warm air will in turn warm the
soundboard. The soundboard will warm the air above it (like where the
strings are). If there is some type of air movement restriction in close
proximity to and above the strings (like a lid), or some type of insulation
(like a string cover or a blanket over the entire piano), then some of that
heated air will remain in the string environment. The warmed air will have a
lower relative humidity level than the rest of the room, thus helping to
reduce string corrosion.

 

Terry Farrell

----- Original Message ----- 

 

                I also agree with you! This does, however, morph from the
original point of what the DC unit does or does not do. I agree that a
string cover will help with the rusty strings issue. I don’t believe that
the DC unit will help with same.

 

Greg Newell

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080218/442cb6d7/attachment-0001.html