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one and two pipe heating systems

MP1013
MP1013 Member Posts: 17
in THE MAIN WALL
Can a existing heating system operate as both a one pipe and two pipe heating system. And how would you size a condensate tank which is located below boiler in a crawl space

Comments

  • will smith_4
    will smith_4 Member Posts: 259
    Yes-

    One and two pipe systems can work together. As far as sizing the tank goes, are you replacing one, or thinking of adding one?
  • MP1013
    MP1013 Member Posts: 17


    The system is existing and has been modified by other contractors quite a bit. I believe the original system was one pipe. And over the years it has been modified. In various locations a two pipe system has been added. They put steam traps on the radiators but they also put air valves, which I will have to remove. They have no steam traps on the return mains which they coverted to two pipes. They have a very oldcondensate tank in a crawl space which brings water back up to the boiler above. The existing boiler which was realively new ( W. Mclain 1,040, 000 input) dry fired . I resized the boiler using all the existing radiators and came away wth a Weil Mclain LGB6 STAEM BOILER. So the boiler was way over sized. The owner wants me to correct any problems and install the system correctly. I could use some ideas. Thanks.
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