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Another Megasteam

RJMCTAFO
RJMCTAFO Member Posts: 113
I always forget to take pics of the old system. It was a 4 section American Standard double door. The only main vent was a no name 1/8" radiator vent. EDR came in at 214.
Customer was on a very tight budget so we did the best we could within that constraint.
MST-288 and 2 No 1 vents. We plan on adding additional venting next year at the tune up.
I have no clue how anyone can see water like that and not endorse skimming/cleaning new boilers.
Paul S_3SWEIjonny88

Comments

  • Paul S_3
    Paul S_3 Member Posts: 1,257
    Nice install @RJMCTAFO
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    [email protected]
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
    RJMCTAFO
  • BobC
    BobC Member Posts: 5,232
    That's what I'd have in my basement now if Burnham wasn't so dead against a gas gun in their wet based boilers.

    Bob

    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • RJMCTAFO
    RJMCTAFO Member Posts: 113
    Yeah it is interesting that they take such a hardline stance on the conversion burners. One can only assume that efficiency with a conversion burner would be light years ahead of an atmospheric.
    I have a customer that needs a new steam boiler replaced. She filled out an application for an energy loan. They will finance a gas fired boiler that is 82% but not a Megasteam oil boiler that is 86%.
    GreenGene
  • GreenGene
    GreenGene Member Posts: 290
    Agreed, when I taught at Porter&Chester we had a Carlin EZ Gas burner and we'd experiment putting it in a variety of equipment, good experience for the students to do sizing, we'd make up a piping and sizing the orifice scenario like you would doing a gas conversion.

    It always ran great, especially the steam, we had a WeilMcLain gold steam boiler, it ran smoother building and keeping a head of steam probably due to the lower flame temps, I think that's their beef, but never saw any issues related to that. The Carlin EZ gas is a great burner IMHO.
  • SWEI
    SWEI Member Posts: 7,356
    GreenGene said:

    it ran smoother building and keeping a head of steam probably due to the lower flame temps, I think that's their beef

    The difference in flame temps is less than 7 percent. Their beef appears to lack a rational basis.
  • Steamhead
    Steamhead Member Posts: 14,863
    edited May 2016
    As energy efficiency standards get higher, they'll have to go the MegaSteam/power burner route. The Independence is probably maxed out already, efficiency-wise.

    Nice looking install- that's a MST-289, right?
    All Steamed Up, Inc.
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    SWEI
  • RJMCTAFO
    RJMCTAFO Member Posts: 113
    Yes Sir, a 288. A compliment from you means I must be doing something correct. Thanks
  • Mad Dog_2
    Mad Dog_2 Member Posts: 3,471
    Nice, clean job brother. Mad Dog
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  • ChrisJ
    ChrisJ Member Posts: 11,985
    Steamhead said:

    As energy efficiency standards get higher, they'll have to go the MegaSteam/power burner route. The Independence is probably maxed out already, efficiency-wise.

    Nice looking install- that's a MST-289, right?

    We were able to get 84 or 85% out of my EG-40, just not with the drafthood blocked.

    I wonder if there's a chance we'll start seeing pin type boilers shipping with barometric dampers running richer in the future.

    Maybe?
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • RJMCTAFO
    RJMCTAFO Member Posts: 113
    I can not remember the specific numbers but I know that after dialing in draft my stack temp was 370* steady state. In the 86% combustion efficiency.
  • ChrisJ
    ChrisJ Member Posts: 11,985
    Here's my EG-40's results with the barometric damper, 4" manifold pressure and a brick baffle.



    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • Robert O'Brien
    Robert O'Brien Member Posts: 3,390
    ChrisJ said:

    Here's my EG-40's results with the barometric damper, 4" manifold pressure and a brick baffle.



    99F ambient?
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  • ChrisJ
    ChrisJ Member Posts: 11,985

    ChrisJ said:

    Here's my EG-40's results with the barometric damper, 4" manifold pressure and a brick baffle.



    99F ambient?
    Not sure on that one, my basement runs warm especially if it's warmer outside which it was, but more like 75-80. I assume the analyzer was just near the boiler.
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • Robert O'Brien
    Robert O'Brien Member Posts: 3,390

    The 99F ambient is clearly an error. It skews the entire result by lowering the net stack temperature and thereby raising the efficiency.

    My point
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    Hatterasguy
  • ChrisJ
    ChrisJ Member Posts: 11,985

    The 99F ambient is clearly an error. It skews the entire result by lowering the net stack temperature and thereby raising the efficiency.

    My point
    Ok.
    So skew it properly, assume 80F ambient.
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • SWEI
    SWEI Member Posts: 7,356
    edited May 2016
    There's a reason we put the T2 probe in the air inlet pipe on sealed combustion appliances. CA efficiency numbers are not reliable regardless.