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Feedback on new boiler system
I'm having a new boiler installed and I think the plumber is in a little over his head. I've read a bunch of Caleffi's articles and bought John Seigenthaler's book to try and become informed on hydronic systems. I'm concerned that there is not enough pipe length before and after circulators. Also, should the spirovent, dirt separator and water supply/expansion tank be down by the boiler? He's not finished yet, but I imagine now is the time to fix any issues. Any feedback is greatly appreciated. Thanks!