Coastal Dampp-chaser calibration

PAULREVENKOJONES paulrevenkojones at aol.com
Fri Jul 27 12:43:04 MDT 2007


Wayne:

You might not have enough information. I certainly don't. What are the other seasonal conditions? What is the condition of the pianos as you find them from summer to summer? Is there any temperature and/or humidity control in the facility in which the pianos reside? 

"If you want to know the truth, stop having opinions" (Chinese fortune cookie)


In a message dated 07/27/07 13:00:39 Central Daylight Time, wwilliams11 at nycap.rr.com writes:
Hello: 
I mentioned this in another email in regard to the Damp-Chaser product. I 
just tuning a Steinway grand and upright at a YMCA camp that operates only 
two months a year, July and August. The camp is on Lake Champlain in New 
York State, and the camp Director, a music teacher, says the summers are 
very humid. Teh grand alreaddy has a "heating bar". Do the painos, given the 
climate, warrent a complete Damp-Chaser system? 

Wayne Williams 
Schroon Lake, NY 
----- Original Message ----- 
From: "R Barber" <bassooner42 at yahoo.com> 
To: <pianotech at ptg.org> 
Sent: Monday, July 16, 2007 2:36 PM 
Subject: Coastal Dampp-chaser calibration 


>  The owner has double-paned windows, weather-stripped doors, drapes- 
> generally equipped to protect his niche from the environment, but prefers 
> open windows.  There is no central humidity control.  There is usually a 
> 24-hour on-shore breeze, so the typical climate will be high RH, about 95% 
> of the year.  RH ranges between 55-100% daily, but occasionally there is a 
> breeze from the off-shore direction when RH drops to 20% or below, 
> sometimes for a few days at a time. 
>  I've heard two votes for the wet, and I'm tending in that direction. 
> Thanks for you input! 
> Richard Barber 
> 
>> My recommendation would be to know the typical range of relative humidity 
>> (RH) the house (?) experiences. If the house is a old wood frame, windows 
>> are often open, no central air or heat, then sure, pick the 
>> "wet"-calibrated Dampp-Chaser humidistat to match the outdoor 
>> environment. But many modern homes are well insulated from their outdoor 
>> environment and RH ranges in them may have little to do with outdoor RH 
>> ranges. Not only are modern homes well insulated from the outdoors (heat 
>> AND humidity), but any home also has it's own humidity sources - cooking, 
>> showers, etc. 
>> 
>> IMHO, if you are going to err at all, and being that you plan to install 
>> a full system (are you sure its gets dry in the home?), I would go with 
>> the "normal" humidistat. Another consideration might be if the instrument 
>> is old with a sagging soundboard and less-than-tight tuning pins, you 
>> might want the "wet"-calibrated Dampp-Chaser humidistat to help the piano 
>> out a bit. 
>> 
>> Also, have you checked to see whether the home has a central humidity 
>> control system? 
>> 
>> Many things to consider. At least the piano is getting a DC system - 
>> always a good thing! 
>> 
>> Terry Farrell 
>> 
>> ----- Original Message ----- 
>>> Do you think a "wet"-calibrated Dampp-Chaser would be a wiser choice 
>>> than the standard calibration for a client on a foggy coast? 
>>> Installation to include string cover + undercover, complete Dampp-Chaser 
>>> (not just rods), to cover off-shore dry spells. 
>>> 
>>> Thanks, 
>>> Richard Barber 
>>> Santa Clara Valley, CA 
>> 
>> 
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