John Hait's PAHS has been further developed, made more versatile, cheaper and more controllable, by Don Stephens' AGS. Here's the key links:
http://www.primedesign.us/self_heating_houses/pahs_article_1.html - all you need to know, really, about John Hait's PAHS, the purist no-machinery concept
http://www.primedesign.us/self_heating_houses/self_heating_houses_files/frame.htm esp frame 18 of this Powerpoint by Engineer Joe Anderson
http://www.EinsteinCode.info to buy the ebook
http://www.greenershelter.org/index.php?pg=3 - all you need to know about Don Stephens' AGS, which judiciously uses machinery to make it work better, in more situations
http://www.greenershelter.org/TokyoPaper.pdf - ditto
http://www.greenershelter.org/index.php?pg=2 - comparison between PAHS and AGS
The penultimate one is the best intro – gives the key features reqd, used in many different mixes/combinations.
No Comments/Trackbacks for this post yet...