By following a few simple preventive maintenance tips, you can reduce tuning costs, improve playing sound and extend your piano's life. The Piano Technicians Guild recommends positioning your piano away from doors or windows that you leave open regularly. Take care to place your piano away from heating or air conditioning vents. Fireplaces and direct sunlight can also affect the inner workings of your piano. The Piano Technicians Guild suggests avoiding overly wet or dry conditions, as too much moisture can make the piano pitch sharp, while overly dry conditions can cause the piano's pitch to go flat as well as causing the glue joints to weaken in the soundboard. The Piano Technicians Guild recommends maintaining a consistent temperature around 68 degrees Fahrenheit and 42 percent relative humidity.