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  1. Spock

    Boiler Piping Mystery

    The Zurn was (my guess) left at the factory temperature outlet of 115 degrees. My plan was to set the boiler to the same temperature. I was going to set the thermostat at 70 or 72 because they put carpet in the rooms with the floor heating and it has very, very thick padding. Should I lower...
  2. Spock

    Boiler Piping Mystery

    This is in floor hydronics heating, no emitters. No zones, 3 loops all one zone. I got rid of the Zurn valve and a few pieces of pipe. I added a drain for the system. I have to move one pump (system pump) and close the whole thing up. Next step will be a bit of rewiring as I discovered...
  3. Spock

    Boiler Piping Mystery

    Yes, that one should stay, it's needed for the boiler output to the header. Just don't understand the need for the Zurn valve. Would like to make this layout simpler if possible by taking it out and regulating the temperature with the boiler.
  4. Spock

    Boiler Piping Mystery

    Pump under the boiler line runs down to nowhere. It comes off the main supply line with a T, goes down to a 90 pointed to the wall, hits the wall, turns left, switches from copper to PEX and then the PEX is capped with a sharkbite cap. Probably planned for future expansion or DHW? In either...
  5. Spock

    Boiler Piping Mystery

    Yes, the system is off. Boiler is unplugged, water is off. There are no gauges on the system other that on the manifolds for the PEX pipe going into the concrete slab. Both gauges are broken, I plan to replace them. There are 3 loops and I have no idea how long they are. The system was...
  6. Spock

    Boiler Piping Mystery

    Let me preface this by stating that I’m not a professional HVAC contractor but have done several hot water tank installs, plumbing repairs and even rebuilt a Trane XV90 furnace. I’m a homeowner who’s not afraid to dive in and get in over my head. I bought this house 7 months ago in the height...
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