Disklavier

Hi All,

I purchased a DC3A a couple of years ago.  Since I got the piano, I've
been trying to baby it as much as possible.  I bought a whole-house
humidifier to keep the humidity up during the winter.

When it's hot enough to run the central AC, the humidity stays between
40%-50%.

The problem is when it's in the mid-70's and very humid.  I have a
whole-house fan that keeps the house very comfortable, but I worry
that too much humidity will damage the piano over the long run.  If I
turn the AC on it doesn't run frequently enough keep the humidity down
either.

I've closed the windows in the room with the piano and bought a
dehumidifier.  With the whole house fan going, the dehumidifier runs
frequently to keep the humidity down (and keeps the room pretty warm
to boot.)  Now I'm seeing higher power bills.

I'm wondering what my options are.

I could run the AC and turn the thermostat down to a few degrees
cooler than the outside temperature (it's 69 degrees F right now.)

I could buy some kind of impermeable cover and cover the piano so that
the humidity under the cover is 40%-50%.

I could just stop worrying about the whole thing.

Any ideas out there?

Thanks,
Bob