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Why is elevation gain not calculated in head loss?
Im having the hardest time calculating my pump needs for my first multi-level home. The owner is doing an addition and wanting to upgrade the boiler and heating system. Its a 3,000 foot home, the main house is two storied 32'x32' making each level 1024ft and the total 2048. The addition is 750'. The upstairs Baseboard run is the longest (not including the infloor heat) at about 210' of 3/4" copper. Not knowing the exact amount of fittings is stressful but, I've found a few general estimation guides. My biggest headache is nothing tells me how to add the elevation from the lowest point to the highest, or if it's even necessary to calculate? Im running a lochinvar knight, my plan was to run a main loop with each of the 4 BB zones having its own pump and the 4 infloor runs (2 zones, 2 thermostats) on its own pump with closely spaced tees, mixing valve 4zone manifold with 4 actuators. Ninety percent of the posts I've read say you can run an entire heating system with one pump. Which makes me believe im over pumping the zones, and I'd prefer not to. Im having hell calculating if I can run all the baseboard zones off the supplied Pump. Or if there is better way of running the manifold other than my initial drawings of the closed loop with supplied pump, 4 bb each having grundfos pump with check, and the infloor low temp having its own grundfos and a 4 actuators. I know Im asking many questions with little info provided.but, im willing to get any info needed, and im looking for new knowledge moreso than just answers.
I appreciate any help and direction.