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Posted by joe on June 10, 2006 at 10:53:39:
In Reply to: Re: controls hot water boiler posted by HeatPro on June 09, 2006 at 12:45:06:
Thanks.
One last question: Several manufacturers of the 80 BTU condensing boilers recommend a 1" primary (or boiler) loop with a maximum distance of 12" between the tees for the secondary loop supply and return piping. My plumber advises using 1-1/4" secondary loop with 1/2" branch lines (Euro two pipe), but you recommended 1". I was going to go with 1-1/4" because I thought "it can't hurt", howwever, as I examine the boiler piping diagram, I wonder if 1-1/4" would draw off more water from the primary loop than 1", causing an imbalance. The boiler manufacturer makes no recommendation for the size of the secondary loop, only the primary loop 1". Should I just stick to 1"?
I was just curious if using a Taco 007 pump in a 1" primary loop, with a 1/4" secondary loop with a Taco 007 pump, would cause more water to go through the secondary loop