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Buffer tank addition to radiant?

wcs5050wcs5050 Member Posts: 126
Customer has W-Mc Ultra boiler directly connected to radiant manifold.. with proper pro/sec piping. Would a buffer tank addition increase performance of system?


  • GordyGordy Member Posts: 9,523
    Is boiler over sized ? Is there zones with loads less than the minimum modulation of the ultra?
  • wcs5050wcs5050 Member Posts: 126
    Thx for the comments Gordy. Boiler is oversized, but it can be choked way back via reprogramming. I suppose the whole point of the buffer is to fight short cycling in the instance you described.
  • GordyGordy Member Posts: 9,523
    Exactly. So if you have multiple zones, and those zones are less than min modulation then yes, or combine zones. If boiler is over sized yes. I would not expect huge savings compared to right size boiler, and well thought out zoning, but will extend life of boiler components.
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