"Phisherman" wrote in message
...
A more powerful fan should help remove moisture, but the fan needs to
run 20-30 minutes after bathing. A timer switch is good for this.
Another thought, you may have a leak inside the wall somewhere.

It's blistering everywhere- the closer to the shower, the more it blisters,
so I doubt it's a leak. When the heat pump is off, we keep the blower on to
keep the air moving. Just leaving the door open clears it out in 10-20
minutes. I was hoping the exhaust fan would suck out the moisture as it is
generated.