re: duct basics
14 sep 2003
don ocean wrote:
>> >>...don't go above 400 feet per minute, to keep fan power low...
>ummmm? just exactly how are you getting 400 fpm...
a fan, as mentioned above. but it might happen naturally. with an 8' rise,
400 = 486sqrt(8dt/(70+460)) makes dt 45 f, with 115 f air coming out of
a vent at the top of an 8' tall closet, in a 70 f room.
>you would have to be using the pali mountain system of oahu for that much
>thermosyphoning. or the santana vortex of calif.
would you care to explain this article of faith? :-)