<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1250"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.0.4630.0"> <TITLE>RE: Coastal Dampp-chaser calibration</TITLE> </HEAD> <BODY>  I'm posting this information from a few years ago that I sent to Dampp-Chaser about their system in a similar situation. " For the last 20 years our company has rented an upright piano for the Nova Scotia Choral Federation choir camp.  The piano is located in an open stage area.  Open to the elements.  Temperatures from 49 F at night to 85 F to 90 F day time and high humidity 80% +.  The camp runs the full month of August and the piano is required to be tuned each Saturday morning before 8 am plus 1 hour drive each way.  When I tune the piano I'm lowering the pitch a good 1/4 semitone each week. "Last year and this year I decided to use a piano with a Dampp-Chaser System installed.  We just brought the piano back today.  The piano hasn't been tuned since it left the shop.  The piano was only 1.2 cents flat.  This has saved me many early Saturday mornings over the last 2 two years. " The full system was installed in this piano Wayne Walker Piano Tuner / Technician Musicstop Acoustic Piano Service 264 Herring Cove Road Halifax, NS, Canada B3P 1M1 902-221-1540 902-496-0041 Fax HYPERLINK "www.musicstop.com"www.musicstop.com -----Original Message----- From: Wayne M. Williams [HYPERLINK "mailto:wwilliams11@nycap.rr.com"<A HREF="mailto:wwilliams11@nycap.rr.com">mailto:wwilliams11@nycap.rr.com</A>] Sent: Friday, July 27, 2007 2:20 PM To: Pianotech List Subject: Re: Coastal Dampp-chaser calibration 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@yahoo.com> To: <pianotech@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 >> >> >>     * Previous message: Coastal Dampp-chaser calibration >>     * Next message: Coastal Dampp-chaser calibration >>     * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] >> >> More information about the Pianotech mailing list > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: > 269.10.22/922 - Release Date: 7/27/2007 6:08 AM > -- I am using the free version of SPAMfighter for private users. It has removed 2426 spam emails to date. Paying users do not have this message in their emails. Get the free SPAMfighter here: HYPERLINK "http://www.spamfighter.com/len"<A HREF="http://www.spamfighter.com/len">http://www.spamfighter.com/len</A> No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.10.22/922 - Release Date: 7/27/2007 6:08 AM   </BODY> </HTML>