A climate control system will protect your piano as follows:

 

1.   Stabilizes pitch and permits tunings to hold longer  

2.   Minimizes tuning pin & soundboard movement, which also helps  stabilize pitch

3.   The system improves operation of keyboard  -  sticking keys & sluggish action only on uprights 

4.   Minimizes glue joint failure within the piano

5.   Prevents shrinkage and swelling of the soundboard which causes the soundboard to crack