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Joined: Oct 2010
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In the summer, my house stays 78 degrees. In winter, we have the heat set to 73. When we go on vacation during the summer, we raise the temperature to 84. Are these reasonable temperatures for our Imperial?
-- Chuck Chandler AZ
1918 Steinway Grand W1597 192692 w/o the player (6' 2" case 5' 7" M length strings) (piano loft) 1975 Yamaha Upright 48" U1H 1948237 (piano room) 2008 Bosendorfer Imperial 290 48852 (great room) 1912 Moutrie Upright/Coffin 113 11709(if 10000@1910 & 75/mo built)(Shanghai condo)
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In the summer, my house stays 78 degrees. In winter, we have the heat set to 73. When we go on vacation during the summer, we raise the temperature to 84. Are these reasonable temperatures for our Imperial? Chuck - Those same temps here in Phoenix certainly haven't hurt my Mason and Hamlin - or the Young Chang I owned prior to that. But perhaps an Imperial is a slightly different animal ??? I believe that fluctuations in humidity are more of a concern than moderate fluctuations in temperature.
Last edited by carey; 10/25/10 02:56 AM.
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When we go on vacation during the summer, we raise the temperature to 84. Are these reasonable temperatures for our Imperial? Why don't you let me baby sit your piano(s) when you're away on vacation during the summer? :P Since I'm a grad student, I can do my research from "home" when not enrolled in classes (which is the case during the summer). I'm allowed to dream, am I not? :P
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You really need a local technician who can tell you what to expect in your area. If yours cannot, find one who can.
Semipro Tech
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In the summer, my house stays 78 degrees. In winter, we have the heat set to 73. When we go on vacation during the summer, we raise the temperature to 84. Are these reasonable temperatures for our Imperial? Just like frequency response without deviation from 0db stated is meaningless for speakers, temperature without humidity stated is meaningless for pianos.
Yamaha AvantGrand N1X | Roland RD 2000 | Sennheiser HD 598 headphones
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In the summer, my house stays 78 degrees. In winter, we have the heat set to 73. When we go on vacation during the summer, we raise the temperature to 84. Are these reasonable temperatures for our Imperial? Just like frequency response without deviation from 0db stated is meaningless for speakers, temperature without humidity stated is meaningless for pianos. Absolutely. In the Southwest, it's common to have evaporative cooling. I've measured relative humidity as high as 70% indoors with them running. A/C doesn't add humidity, nor does it remove it much. To protect a piano of that value, you should invest $50 in a humidity gauge with high/low readings. Also, ask your tuner to measure and record the pitch of A4 (at least) to see how your piano is responding. When it's humid, it will go sharp; when dry, it goes flat. It's possible to measure and quantify these effects before damage occurs (see my Facebook page for examples). --Cy--
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Evaporative cooling is rare in new homes. We have normal AC. Assuming I get a whole room or whole home humidity control system, will 84 degrees be OK for a month at a stretch? What is the highest temp you would recommend for 1 month straight?
-- Chuck Chandler AZ
1918 Steinway Grand W1597 192692 w/o the player (6' 2" case 5' 7" M length strings) (piano loft) 1975 Yamaha Upright 48" U1H 1948237 (piano room) 2008 Bosendorfer Imperial 290 48852 (great room) 1912 Moutrie Upright/Coffin 113 11709(if 10000@1910 & 75/mo built)(Shanghai condo)
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Joined: Jul 2004
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Evaporative cooling is rare in new homes. We have normal AC. Assuming I get a whole room or whole home humidity control system, will 84 degrees be OK for a month at a stretch? What is the highest temp you would recommend for 1 month straight? Provided the humidity is between 30 and 50 percent ... or something close to that and relatively consistent, you should be OK. When I owned my C3 I bought two professional thermometers and would perform a wet bulb humidity measurement. I did that for a few weeks and then retired the thermometers. It seemed anal after a while to check the humidity level. I had a deal where my piano was tuned four, five, six times a year and taking humidity measurements daily seemed excessive. If the room temperature and humidity were acceptable for me I assumed the piano concurred.
Yamaha AvantGrand N1X | Roland RD 2000 | Sennheiser HD 598 headphones
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I second what Dave says. I wouldn't go nuts -- many other things in your home might not like 90 degrees for a month. I've had friends in AZ whose candles melted... But the point is that humidity is the key factor, and it's relative humidity, meaning relative to the maximum the air can hold at that temperature. If you sealed your house air-tight at 50% Relative Humidity (RH) at 72 degrees, and then raised the temperature to 84 degrees, the RH would drop significantly, because warmer air has a higher capacity to hold moisture. You might have to add gallons and gallons of water to hold the RH within range at a high temperature. Pianos and everything made of wood likes to be between 40% and 60% RH, so you still need to buy a hygrometer to measure indoor humidity. Here's what the Smithsonian has to say on this: http://www.si.edu/mci/english/learn_more/taking_care/biodetwood.html--Cy--
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