2017 was our 20th year online!

Welcome to the Piano World Piano Forums
Over 3 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Shop our online store for music lovers
SEARCH
Piano Forums & Piano World
(ad)
Wessell Nickel & Gross
PianoForAll
(ad)
Best of Piano Buyer
 Best of Piano Buyer
(ad)
Faust Harrison Pianos
Faust Harrison 100+ Steinway pianos
Who's Online Now
39 members (Eli26, DaEgg, cozmopak, Almaviva, carlspost, 15 invisible), 440 guests, and 391 robots.
Key: Admin, Global Mod, Mod
(ad)
Estonia Pianos
Estonia Pianos
Previous Thread
Next Thread
Print Thread
Hop To
Dampp-Chaser and Creating Micro-climates
#3048104 11/21/20 08:12 PM
Joined: Sep 2020
Posts: 11
R
Junior Member
OP Offline
Junior Member
R
Joined: Sep 2020
Posts: 11
Hello,

I live in the Mid-Atlantic USA, where the indoor humidity ranges from 20% in the coldest part of winter to up to 70% in the summer. I have an ebony grand piano with a Dampp-Chaser. I am thinking of creating micro-climates both under and over the soundboard. Regarding the over-the-board climate, I understand the goal is to achieve a uniform moisture level in the soundboard rather than having a moisture gradient across the soundboard that would occur when the top and bottom of the soundboard reach equilibrium with the different air humidity levels to which they are subjected.

Based on previous pianoworld posts, it seems that many technicians recommend installing an undercover. Where can I purchase an undercover? Can I make my own? Is installing an undercover a specialized task requiring a technician's skill?

The more difficult issue appears to be creating an effective micro-climate over the soundboard. When I had the lid down but folded back, the humidity over the soundboard was exactly the same as the room humidity. I now have the lid closed completely. This appears to help a little (32% room humidity vs. 35% humidity over the soundboard), but there is still a ~1/8 in. gap between the closed lid and rim. Some recommend adding a fabric cover over the piano, but unless the cover fit tightly, I suspect that air gaps would persist. Has anyone measured the effectiveness of such coverings?

I thought it might be more effective to add 1/8 in. thick black foam weatherstripping on top of the rim. Does anyone have experience or thoughts about this?

Thanks

(ad)
Piano & Music Accessories
piano accessories music gifts tuning and moving equipment
Re: Dampp-Chaser and Creating Micro-climates
Rachtoven #3048127 11/21/20 10:37 PM
Joined: Feb 2017
Posts: 3,425
P
3000 Post Club Member
Offline
3000 Post Club Member
P
Joined: Feb 2017
Posts: 3,425
Rachtoven,

I am a proponent of a full cover for grands. I find that The system works better with one. An undercover can be made from high quality speaker cloth/fabric. The undercover works quite well too. Both together will help you a lot.

Peter Grey Piano Doctor


Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
https://www.youtube.com/watch?v=PK0T7_I_nV8
Re: Dampp-Chaser and Creating Micro-climates
P W Grey #3048188 11/22/20 07:11 AM
Joined: Jan 2007
Posts: 240
N
Full Member
Offline
Full Member
N
Joined: Jan 2007
Posts: 240
I agree, and find that by far the most stable pianos here in NH are those with a PLS and full cover. My own piano fitted with these was very slightly sharp last February when I was seeing many others 35ยข or more flat. Another (or additional) option is a woolen string cover, which are also highly effective.


Mark Dierauf, RPT
NH Pianos
Piano technician & rebuilder since 1978
www.nhpianos.com

Moderated by  Piano World 

Link Copied to Clipboard
(ad)
Pianoteq
Steinway Spiro Layering
(ad)
PianoDisc

PianoDisc
(ad)
Piano Life Saver - Dampp Chaser
Dampp Chaser Piano Life Saver
(ad)
Mason & Hamlin Pianos
What's Hot!!
News from the Piano World
Our October 2020 Free Piano Newsletter is Here!
---------------------
3,000,000+!
------------------
Posting Pictures on the Forums
-------------------
Forums RULES & HELP
-------------------
ADVERTISE on Piano World
New Topics - Multiple Forums
Dual-sensor vs Triple-sensor Actions
by Almaviva - 11/29/20 12:14 AM
Disklavier parts needed for Yamaha Mark 3 Disklavier
by Dfrankjazz - 11/28/20 10:52 PM
Pandemic a boon for piano stores?
by doremi - 11/28/20 10:37 PM
Yamaha Clavinova cvp209 Fault
by Johnnyretro - 11/28/20 09:45 PM
Download Sheet Music
Virtual Sheet Music - Classical Sheet Music Downloads
Forum Statistics
Forums41
Topics203,120
Posts3,028,338
Members99,409
Most Online15,252
Mar 21st, 2010
Please Support Our Advertisers


Faust Harrison 100+ Steinways

Dampp Chaser Piano Life Saver

 Best of Piano Buyer

PianoTeq Bechstein
Visit our online store for gifts for music lovers

Virtual Sheet Music - Classical Sheet Music Downloads



 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
| Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter |


copyright 1997 - 2020 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission
Powered by UBB.threads™ PHP Forum Software 7.7.4