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I'll have the plumber do it.

So said the general contractor when a wall was removed and the steam supply and condensate return had to be re-routed.  "Just make sure they know what they're doing", I said.  A few weeks later, the contractor called me back to turn on the boiler before they closed up the wall.



The attached photo shows what the plumbers did and I did a double-take when I saw the copper and then looked closer to see the 3/4" gravity return going uphill. The contractor wants to know what will happen if left in place since he and the owner figures the system will only last another 10 or 20 years.



Your comments?
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

Two btu per sq ft for degree difference for a slab

Comments

  • icesailor
    icesailor Member Posts: 7,265
    What will happen:

    It ought to pound like hell for 10 to 20 years.

    You can't fix stupid.

    But you can fix a lack of knowledge. Read up and ask others.

    That's the competition.
  • ttekushan_3
    ttekushan_3 Member Posts: 961
    Sheesh.

    I've insinuated myself into such situations with the full expectation that steam piping will be screwed up without vapor-head input. I guess sometimes my expectations are met!



    Like icesailor says, it will bang for 20 years. Or if the pressure is actually as low as it should be, it won't heat at all.



    One facility where I've consulted and performed "error correction" on a large steam heating system has just this sort of thing all over the place. And yes, it's been banging since the '70's. At least with that building we have a very handy visual aid for the trouble spots -- galvanized piping. Everywhere there's a screw-up, it was done in galvanized. It must have been the same crew at about the same time. It's amazing how uniformly they knuckleheaded everything they touched! And they did it over, and over, and over. . .

    Terry T

    steam; proportioned minitube; trapless; jet pump return; vac vent. New Yorker CGS30C

  • Steamhead
    Steamhead Member Posts: 17,384
    That is not acceptable

    if the contractor expects to get paid, he better get it fixed. 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
This discussion has been closed.