David Swartz, commenting on ozone chambers, said that there is no harm done if the piano is completely dry. So I guess that relates to putting it in a sealed-off room heated to 80 degrees. Just a different description about what actually happens. Tom Cole Barbara Nobbe wrote: > The piano has to be contained in a sealed-off room or tent-like structure > that can be heated up to 80 degrees. The heat expands the wood cells to > allow as much of the oxygen to escape. Then, the ozone machine draws all > the oxygen out in order to get the smoke and fire smell out. The machine > should ideally run for 2 days straight. If the piano was not heated to the > high temperature, then the cells would not be at full expansion and thus, > the smell could return during the more humid months. > > I seriously considered the ups and downs of this procedure. I did not want > to return a rebuilt and refinished piano to the customer, only to have it > smell bad in the home. Knowing that I was going to replace the pinblock and > refinish the cabinet, I contemplated that the worse of the damage done with > the ozone machine was going to be fixed anyway. But with the 1 crack in the > soundboard already, and knowing that more would likely appear with the heat, > I opted out. Plus, I figured that after replacing all the hammers and felts > in the action and sealing the cabinet with the new refinishing work, the > smell would not likely be as big of a concern after all. > > Looking back, I'm glad to have not done the ozone. It really worried me > about heating the piano to 80 degrees. I already have enough issues to have > to fix without adding more fuel to the fire, so to speak. :-) > > Barbara Nobbe, RPT > Pitch Perfect > Lexington, KY > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf > Of Jack Houweling > Sent: Saturday, April 03, 2010 1:40 PM > To: pianotech at ptg.org > Subject: Re: [pianotech] Piano cleaning after a fire > > Does anyone know how ozone damages pianos? > > > Jack Houweling > > > > > >> Contact David Swartz, RPT. He is a master at smoke and protein fire >> damaged >> piano. I just had a small seminar with him last year. He did say not to >> use >> ozone because it damages pianos. He also said 9D9 and Double O is good for >> protein. You might give him a call. he has handout for all of this. >> Randy Chastain >> > > >
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