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Cedric II up and running

Jamie Hall
Jamie Hall Member Posts: 17,009
A few clean up, tidy up, neat up issues remaining -- including another skimming session -- but Cedric II is up and running very nicely.  It will be interesting to see if there is fuel economy -- same boiler, but much better insulation and a drop header, and Charles downfired from 3.25 gph to about 2.75; still gets steam to the whole system in good order.



System's nice and tight, too -- we remarked on a funny noise after the burner shut down; found out it was air coming back in through the main vents as the system dropped to about 5 inches of vacuum!  We don't suppose that that will hurt a Gorton #2?  Any comments on that one?



I'll post some before and after pictures after we get the whole thing neated up some more...
Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England

Comments

  • gerry gill
    gerry gill Member Posts: 3,010
    shouldn't hurt the gorton vents at all..

    can't wait to see the pictures!
    gwgillplumbingandheating.com
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • Charlie from wmass
    Charlie from wmass Member Posts: 4,195
    I do recommend that Jamie needs

    to add a few more Gortons to spread out the load on both venting and vacuum relief. Gerry do you think a vacuum relief would help as the whole system is going through one Gorton # 2 for vacuum relief, the Hoffman is still helping with the venting but is a vacuum style so is no help on cool down.
    Cost is what you spend , value is what you get.

    cell # 413-841-6726
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  • Jamie Hall
    Jamie Hall Member Posts: 17,009
    I think...

    a couple more #2s will do the job -- system didn't go anywhere near as far into vacuum today, but didn't run it all that long either!  (just long enough to cross check the relationship between the vaporstat and the Hoffman Differential -- it's correct).  There's room for them...
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • gerry gill
    gerry gill Member Posts: 3,010
    edited June 2010
    Charlie- I would think, as you and Jamie already deduced,

     that a few more Gorton 2's would work better than a vacuum relief..where is the gorton 2 situated? is it on the return pipes or is this a one pipe job?
    gwgillplumbingandheating.com
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • gerry gill
    gerry gill Member Posts: 3,010
    Jamie- is this a standard Hoffman vapor system

    with differential loop? if so i'd make a minorah of air vents on top of the loop..
    gwgillplumbingandheating.com
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • The Steam Whisperer (Formerly Boilerpro)
    edited June 2010
    I agree about the venting...

    with that kind of input on a typical one pipe system, you need about 4 vents ( about 1 per 100,000 input).  I know you have two pipe, so the mains may be smaller, but one vent is probably not  enough.  If you can hear the vent venting, its too small for the job.

    It will be interesting to see if you can downfire right to the heat load and still get balanced heating.  You'll definitely want your extra venting before trying this, I suspect.  You may  want to seperate your main venting from your radiator return so you can keep the venting for the radiators shut off until the mains are completely full of steam and then open the venting for the radiators.  This is how some of the guys did it in the old days....
    The Steam Whisperer (Formerly Boilerpro)

    Chicago's Steam Heating Expert





    Noisy Radiators are a Cry for Help
  • Steamhead
    Steamhead Member Posts: 14,829
    Also check

    the crossover traps between the steam mains and dry returns. These serve to vent the steam mains into the dry returns. If they're too small, they can be upgraded with traps having higher air throughput such as the Barnes & Jones #122. In extreme cases you can remove the trap and install one or more Gorton #2 vents there.



    If possible, I prefer the crossover trap/dry return vent in boiler room arrangement. This cuts down on the number of places where steam could leak from the system.
    All Steamed Up, Inc.
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Jamie Hall
    Jamie Hall Member Posts: 17,009
    The system...

    is going to get at least one more Gorton #2, at the boiler (where the present vents are).  There's room there to do it quite neatly -- that's the next project.  See where we go from there... there's always something which can be done to make things work better, and it's rather fun to fiddle!
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
This discussion has been closed.