More about humidity control

[Lance Lafargue]

I must admit that I have never personally installed a complete system.  I
only base my comments on the units I have serviced that others have
installed and testimonies I've been given over the years.  I forget now
what the variance of the H-2 is, but there is some and I wonder why folks
in 70%+ RH in the home for the overwhelming majority of the year are adding
water so much.  If the humidifier and rods are affecting the whole
soundboard area, how could a less than ideal H-2 location create such a
need for water in these conditions?  That's a sincere and humble question. 

Lance Lafargue, RPT
New Orleans Chapter
Covington, LA.
lafargue@iamerica.net

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> From: Bob Anderson <fndango@azstarnet.com>
> To: pianotech@ptg.org
> Subject: More about humidity control
> Date: Wednesday, August 20, 1997 3:14 PM
> 
> With respect to Lance Laforgue's comments about the lack of sensitivity
> of Dampp-Chaser humidistats, I can only say that I haven't experienced
> that problem. If I could keep the RH within a range of 6%(46% to 52%) on
> all the pianos I service I would be one extremely happy camper. 
> 
> If you live in a very humid place, Lance, and find yourself constantly
> adding water to the D-Ch. humidifier, the likely problem is a poor
> placement of the humidistat resulting in improper feedback from the
> humidifier, or even having the humidifier plugged into the dehumidifier
> outlet on the humidistat. Although I live in a desert area, the humidity
> in July and August is fairly high (the RH in my shop in the early
> morning has been over 80% for the last week, and I haven't added water
> to the humidifier in the piano in there since early July), and neither I
> nor any of my customers who have the systems use much water during this
> time span. In fact, customers notice how little water they're using and
> sometimes wonder if the systems are working. They always are. They just
> don't use any water if the humidity is high enough.
> 
> Bob Anderson
> Tucson,AZ