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Posted by HeatPro on November 07, 2005 at 21:24:16:
In Reply to: Expansion Tank Location posted by sdoor on November 07, 2005 at 19:13:53:
An expansion tank doesn't have to be at any particular height in the system to be at the optimum location. It is OK to pipe where you can, above or below an exhaust vent.
The best way to pipe a boiler is to have the circulator pumping toward the radiation with the air scoop and expansion tank between the circulator and the boiler supply outlet, as here:
http://64.226.150.132/hydronic/des/start.htm
http://64.226.150.132/hydronic/des/start.htm#Positive