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Heat not working like it should
I have a Navien NCB 240. When it was installed we ran the piping for 6 zones ( each room on its own zone) and hooked up zones as the rooms were completed. As I have added more zones, the baseboards aren’t putting out the heat like they should be. I’ve bled the system a few times, no avail. The zones that were working before are struggling. Baseboard was over done as in a little more than the heat lid required but still under the systems max output. Any help is appreciated