Here in Dallas TX, the 1/2 system seems to make sense, keeping the jumps in RH at bay...generally, we don't get real dry here...my view, the wet side is maintenance heavy. Dan Dallas On Nov 8, 2008, at 4:16 PM, Fred Sturm wrote: > On Nov 8, 2008, at 9:37 AM, David Love wrote: > >> Similarly, if you reside out in the desert or some other similarly >> constantly dry climate I would see no reason to install the >> dehumification part of the system--though with virtually no >> maintenance required for that part it probably wouldn't matter. > New Mexico qualifies as desert, with annual rainfall in Albuquerque > around 8 inches (other areas vary quite a bit, many being drier). Yet > I install quite a few half systems with just de-humidifier (DRY > humidistat). Our rain comes seasonally, and in July through September > we typically have afternoon showers "somewhere within sight" (within > sight extends well over 50 miles here) even if it doesn't actually > rain where we are. The ambient humidity from that alone means most > homes top 50% RH. Add the use of common evaporative coolers, and > interior RH can top 80%. Pitch swings tend to be extreme at that time > of year, with 50 cent pitch lowering common. > IOW, you need to know the details. At the university, my half > systems save me about 20 cents pitch lowering before fall semester > over same model without. > I can imagine a situation where I would install a half system > with just the humidifier, but it would be a pretty specific case. I > suppose that the dealership did it as "soundboard crack insurance." > But it seems kind of stupid considering the minor expense and trouble > to attach and plug in one or two drying rods. Roger Wheelock says the > cycling back and forth creates a more stable environment, according to > their testing. > Regards, > Fred Sturm > University of New Mexico > fssturm at unm.edu > > -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 2012 bytes Desc: not available Url : http://ptg.org/pipermail/caut_ptg.org/attachments/20081108/ffd782ed/attachment.bin
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