This is about the best packet of info for this type conversion I've seen
after a hours' cramming from the Google link. It relates back to other
sites and info as well as a link on how to make a simple water column
pressure guage. There is also a link to a chart to cross reference for
orifice sizes as compared to WC pressures. There is even reference to
multiple orifices and hybrid burners.
THIS is an EXCELLENT SITE.

http://www.komar.org/bbq/mm/convert/dannos.html


Thx again, guys!.... Bill