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400,000 btu steam boiler

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charliechicago
charliechicago Member Posts: 130
in Strictly Steam
I'm looking to replace a 400,000 btu steam boiler and cannot find one that comes already assembled. Does anyone know of a manufacturer that has them. Also, can you twin two steam boilers together. Thanks, Michael.

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  • Snowmelt
    Snowmelt Member Posts: 1,415
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    I think you maybe easier to install 2 200,000 and twin them up.
  • Fred
    Fred Member Posts: 8,542
    edited January 2015
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    Weil McLain makes the EGH-105 that is 405,000BTU. The block is factory assembled. Talk to @vaporvac , she has installed a twin system in her home.
    I assume you have done an EDR survey of your Radiators and know you need a boiler of this size?
  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,576
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    twin boilers could be more efficient than one large one, but make sure you really need that size, by measuring the EDR of all your radiators.--NBC
  • KC_Jones
    KC_Jones Member Posts: 5,737
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    To reiterate what everyone has already said do not size the boiler based on the one you have, most of the time they seem to be the wrong size. Add up all the radiation and size it according to that.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15

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