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Crab steamer

LWHLWH Member Posts: 1
Any tips on installing a steam boiler to steam water for make up from water heater or coil, piping diagrams etc


  • nicholas bonham-carternicholas bonham-carter Member Posts: 6,540
    Constant loss steamer

    There are a few postings here on that subject, so do a search.

    The problem to be overcome is the constant addition of fresh waste to the boiler which can introduce too much oxygen into the boiler hastening it's demise.--NBC
  • SteamheadSteamhead Member Posts: 11,378
    Here's one we did

    in the back of a truck, no less............
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
  • Dan HolohanDan Holohan Moderator Posts: 11,877
    Feed water

    Feed it through a small water heater, set at the highest temperature, and use a microbubble reabsorber in the feed line. That will take care of the air and the heater will give the sediment a place to settle, other than inside the boiler. Adds years to the boiler's life. 
    Site Administrator

    [email protected]

    Hug your kids.
  • vaporvacvaporvac Member Posts: 1,512
    WaterHeater, microbubble reabsorber?

    If this works to prevent the introduction of co2 into the system, why isn't it used with residential steam for make-up water?
    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
  • JStarJStar Member Posts: 2,668

    Why, indeed.

    The reason reason.

    The REAL reason is that a residential boiler should not be using a lot of fresh water. And if water is added for maintenance, it should be boiled immediately. Whatever sediment accumulates over the years can be cleaned out.

    In this crab steamer, there is so much fresh water being used daily, that you there is no way to maintain it often enough to prevent a problem.
    - Joe Starosielec
    [email protected]
  • Hap_HazzardHap_Hazzard Member Posts: 1,349
    edited April 2013
    You can use hot water for make-up water

    But don't run it through an automatic water feeder.

    (Actually, consult your local code. It might not allow this.)
    1983(?) Peerless G-561-W-S
    3" drop header, CG400-1090, VXT-24
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