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Re: A zero-fossil-fuel studio?



A major concern with any thermal storage system is the moisture from 
condensation on the surface of the thermal storage modules if a remote 
storage bank is used.  If the storage bank gets much above 60% rh some 
rather nasty organisims will be growing in the air supply system with 
possibly serious considerations for IAQ.  The most succesful thermal 
storage uses direct-gain solar mass walls rather than ducting warm moist 
air to a storage bank.  Water modules work well in the lower 48, and 
gypsum board is better than masonry.  Two or three layers of drywall is a 
good compromise since only the first 1.5" to 2" is diurnally active.

a zero fossil fuel studio is quite feasible almost anywhere south of the 
arctic circle.
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