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Theory behind parallel hydronic heating
Hi all. I was wondering if anybody out there can explain to me The theory behind how hot water flows from one end of the radiator to the other in a parallel system. My system has one circulated loop that goes around the whole basement. Each radiator is tapped off this loop. As the water flows around the loop it gets to the first tee which goes into the radiator Supply which is on the high side of the radiator. Then after water flows through the radiator it returns back down to the loop from the low side of the radiator A few feet further down on the primary loop in the basement. Because this is not a series circuit what principal causes the water to gravitate up into the radiator and then back down a few feet further. I'm sure my teacher probably covered this Wayback then in high school but I probably wasn't paying attention at the time because I didn't think you would ever be that important to me. Advanced thanks for the help. Joe