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Steam/Hydronic Combination Boilers?

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jguinta
jguinta Member Posts: 12
I m renovating and old house in Boston. I will be replacing a steam boiler serving a one pipe steam radiator system. Is there a gas fired boiler that can serve both Steam and Hydronic Radiators?

I would like to remove a radiator in the kitchen to create more space. I was thinking about either kick space radiators or under floor radiant panels as a replacement.

If this is possible, what boiler makes would you recommend?
Mad Dog_2

Comments

  • jguinta
    jguinta Member Posts: 12
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    The kitchen is approx. 165 sq ft, 8 foot ceilings. one 36"x48" window.
  • ethicalpaul
    ethicalpaul Member Posts: 5,702
    edited February 15
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    Almost any steam boiler can be set up with a hot water loop.

    I had very easy success with Peerless (63 or 64 series). They give you two 1" tappings expressly for this purpose that are above the bottom of the boiler by about a foot (minimizing mud flow into the line) and below the waterline.

    I even ran mine directly from the boiler (no heat exchanger, fewer circulators required), pumped with a cast iron circulator (not usually advised with boiler water, but my water is treated and clean) and it has been doing great for 3 years so far.

    You will want a bypass loop so you can moderate the temperature of your hot water as desired (you don't want 212F water in your floor radiant)

    This article tells you everything you need and more:

    https://heatinghelp.com/systems-help-center/how-to-run-a-hot-water-zone-off-a-steam-boiler/
    NJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el
    jguinta
  • Jamie Hall
    Jamie Hall Member Posts: 23,280
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    Any steam boiler will work. Some are a little easier to pipe and control, but they will all work. It helps -- as always -- to have a heating professional who knows what they are doing to do the installation.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    jguintaMad Dog_2
  • ethicalpaul
    ethicalpaul Member Posts: 5,702
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    It helps -- as always -- to have a heating professional who knows what they are doing to do the installation.


    I wouldn't say always...
    NJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el
    LRCCBJ
  • jguinta
    jguinta Member Posts: 12
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    thanks all!
  • STEAM DOCTOR
    STEAM DOCTOR Member Posts: 1,967
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    Weil McClain with a coil might be good idea. Kick space rads have narrow pathways. Easy to clog with dirty steam boiler water. 
    Mad Dog_2
  • jguinta
    jguinta Member Posts: 12
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    thanks