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Posted by HeatPro on February 07, 2006 at 09:21:30:
In Reply to: Re: wiring boiler/ergomax in my situation posted by Dave on February 07, 2006 at 08:16:25:
From what you described as having the stubs on the boiler return in a zero-pressure manifold configuration, there is no back pressure.
A remote bulb thermostat of this type is sufficient:
http://www.kingsolar.com/catalog/mfg/dayton/4e047.html
http://www.white-rodgers.com/pdfs/04_Cat_pages/04_Cat_pg_035.pdf
Send the pictures.