[pianotech] Clarification Question: i'll take a pass

[Ron Nossaman]

Dean May wrote:
>>> Relative humidity isn't absolute moisture content, it's temperature
> related. 
> 
> Exactly
> 
>>> A/C exhaust is of a lower moisture content than the room air
> 
> This is not entirely accurate. Assuming constant barometric pressure, the
> moisture content per pound of exhaust air vs. pound of room air (I'm talking
> mass here, not volume) is the same (assuming steady state conditions). Think
> about it, it is the same air, you aren't adding or taking away any moisture
> at that point. The only difference is the temperature rises, making it
> capable of holding more moisture, thus it goes to a lower RH by definition..

It's accurate enough. If moisture isn't being taken from air 
passing through the A/C, what's that dripping out the back of 
the unit?
Ron N