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connecting 2 thermal oil boilers

mshkry Member Posts: 3
i Have a 500,000 BTU oil boiler and buying another 300,000 BTU . How to connect both of them to give higher rating as well to act as standby for each others ? Will the same piping work ?


  • vaporvac
    vaporvac Member Posts: 1,520
    Is this for steam?
    Two-pipe Trane vaporvacuum system; 1466 edr
    Twinned, staged Slantfin TR50s piped into 4" header with Riello G400 burners; 240K lead, 200K lag Btus. Controlled by Taco Relay and Honeywell RTH6580WF
  • mshkry
    mshkry Member Posts: 3
    Oil ..
  • Steamhead
    Steamhead Member Posts: 15,350
    How does the heat get from the boiler to the rooms? By hot water, or steam?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • Paul48
    Paul48 Member Posts: 4,469
  • mshkry
    mshkry Member Posts: 3
    It's industrial boiler . Oil goes in pipes to heat water and other chemicals .
  • jumper
    jumper Member Posts: 1,849
    First inclination is not to mix circuits. Separate heat exchangers. If you scorch thermal fluid the entire circuit including boiler and heat exchanger has to be purged and cleaned.
  • SWEI
    SWEI Member Posts: 7,356
    I'm thinking primary/secondary, but really need to know more about the existing piping setup. Got a diagram? Photos?