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Is this a NEW Weil McLain EG50 or this is a bait and switch?

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Altoiditis
Altoiditis Member Posts: 4
Is there a way to verify this is actually an Weil McLain EG50 from these pictures?


Getting a new boiler installed. Somewhat looks new but also rusted/corroded. Is the boiler actually a Weil McLain EG50 or they slapped a random label on it?

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  • ChrisJ
    ChrisJ Member Posts: 15,924
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    I've only seen 1 new block in person and it was my EG series.
    But that to me certainly looks like a new EG50 or EG55 (same block).

    The surface rust doesn't mean anything.

    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
  • Altoiditis
    Altoiditis Member Posts: 4
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    ChrisJ said:
    I've only seen 1 new block in person and it was my EG series. But that to me certainly looks like a new EG50 or EG55 (same block). The surface rust doesn't mean anything.
    Okay thanks, that does calm my nerves a bit. 
  • ChrisJ
    ChrisJ Member Posts: 15,924
    edited November 2023
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    ChrisJ said:

    I've only seen 1 new block in person and it was my EG series.
    But that to me certainly looks like a new EG50 or EG55 (same block).

    The surface rust doesn't mean anything.



    Okay thanks, that does calm my nerves a bit. 

    If you're having a steamer put in and want to clarify the piping etc with us before it's done, please by all means. It's easier to have it done right the first time than to try and get it fixed.


    But I think your new block is the real deal.
    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
  • KC_Jones
    KC_Jones Member Posts: 5,750
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    ChrisJ said:


    ChrisJ said:

    I've only seen 1 new block in person and it was my EG series.
    But that to me certainly looks like a new EG50 or EG55 (same block).

    The surface rust doesn't mean anything.



    Okay thanks, that does calm my nerves a bit. 

    If you're having a steamer put in and want to clarify the piping etc with us before it's done, please by all means. It's easier to have it done right the first time than to try and get it fixed.


    But I think your new block is the real deal.
    Hopefully it was sized correctly already. Judging by the return pipe that's already perfectly lined up with the return connection, I have some doubts. I guess this website has made me paranoid.

    To the OP, sizing and proper piping are way more important than that surface rust, which isn't uncommon on bare cast iron.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15
  • Altoiditis
    Altoiditis Member Posts: 4
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    ChrisJ said:
    ChrisJ said:


    This was the previous piping, I’m assuming they will put the new one the same way since it’s the same model and BTU. Anything wrong with this? 




  • Altoiditis
    Altoiditis Member Posts: 4
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    KC_Jones said:
    ChrisJ said:



    Please see above for previous one’s piping, it’ll be the same unless there was something wrong with the previous. 

    In terms of sizing, it’s 175k BTU, it’ll be steam. I’ve done rough math with the radiators around the house and main pipe and based on that it says I need 350 Sqft ratings, this unit is 454 sqft, however I do plan to finish the basement and add heating to it from this unit. It’s a 2100 Sqft brick facade house. 
  • ChrisJ
    ChrisJ Member Posts: 15,924
    edited November 2023
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    Assuming that's 2" pipe (not outside diameter, that's more like 2 3/8") then it's piped to minimum specs.

    If it was mine, I'd want that piping all upgraded to 3" but according to Weil Mclain it's fine the way it is unless I missed something.


    Even with finishing your basement I wouldn't have gone over an EG45.
    I'm running an EG-40 with 392 sqft.

    But, you're passed that point.
    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
    ethicalpaulmattmia2
  • KC_Jones
    KC_Jones Member Posts: 5,750
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    Riser and header should be minimum 2 1/2" pipe which is 2 7/8" OD, I can't tell what that is so as long as it's 2 1/2" pipe it's ok. I agree with Chris I'd prefer full size 3" outlet and header.

    As far as the sizing, that ship has set sail, but yeah it's oversized, dramatically regardless of what you are doing with the basement.

    I will never understand doing the math and then ignoring it, never understand. the 45 would have been better, but I'm betting the 40 would have worked just fine with 22% pick up factor.

    As it stands you have 70% pick up factor, which is absolute insanity.


    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15
    mattmia2
  • ChrisJ
    ChrisJ Member Posts: 15,924
    edited November 2023
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    @KC_Jones That's interesting.

    I remeber the chart you posted, that's the one I used.

    But here's a more recent one and apparently they've reduced their recommendations.
    No idea why so I can't really comment on that but if it was mine I'd still do a single 3" into a 3" header.



    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
  • KC_Jones
    KC_Jones Member Posts: 5,750
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    ChrisJ said:

    @KC_Jones That's interesting.

    I remeber the chart you posted, that's the one I used.

    But here's a more recent one and apparently they've reduced their recommendations.
    No idea why so I can't really comment on that but if it was mine I'd still do a single 3" into a 3" header.



    The screenshot I posted was off their website, just today, so I don't think it's outdated. Perhaps the one you saw was an older typo? The one you posted actually disagrees with itself.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15
  • mattmia2
    mattmia2 Member Posts: 9,970
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    Looks like the one that lists a single 2" is a typo, looks like it should say one 2.5" or two 2" risers, otherwise why would there be a 2" and a 2.5" minimum line for the same boiler group.
  • STEAM DOCTOR
    STEAM DOCTOR Member Posts: 2,041
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    Certainly looks like a five section Weil Mclain boiler. Every single new boiler has rust like that. Probably spilled cutting oil or something like that.
  • ChrisJ
    ChrisJ Member Posts: 15,924
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    Certainly looks like a five section Weil Mclain boiler. Every single new boiler has rust like that. Probably spilled cutting oil or something like that.


    I think the rust is from them pressure testing the boiler with it full of water. That would be safer than testing it with air.


    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
    mattmia2STEAM DOCTORBenDplumber