>I find that pianos with this system are more in tune after a year than pianos >without it are after six months. At the risk of belaboring the obvious, in my little world, pianos with no system at all are in better tune after a year than the same piano was at six months. At least after the first year of their lives. I do know what you meant, but it might need a little rewording as a selling point. Other than that, I agree that in parts of the world where the houses don't get below 40%rh, there's no point to installing the humidifier, but the dehumidifier and humidistat can work wonders. I'd also prefer enough or too much wattage to too little, so I could be sure it is effective. >The caveat that I always tell my customers, >however, is that they are not allowed to move the piano to a different climate. >If they do, the system may not work as well unless modified to a full system. Yep, but customers are like everyone else. They want hard universal answers they can memorize and apply without negotiation, not contingency alternatives that require assessment of conditions. I never know for sure if they really understand what I'm trying to explain to them. Ron N
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