Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

monoflo tee system

bryan_10
bryan_10 Member Posts: 7
Can I remove all the cast iron convectors on a system and install copper fin-tube? Do I size fin-tube for load or do I need to worry about piping resistance? My plan is to supply and return the BB with the tees that are in place. Will it work?

Comments

  • Uni R
    Uni R Member Posts: 663
    Why?

    Why would you want to do this?
  • DIY Homeowner
    DIY Homeowner Member Posts: 48
    ?s

    Cast iron tubular radiators, or cast iron baseboards?

    You would be ill-advised to swap cast iron baseboards for fin-tube.

    But if you are look to get rid of cast iron baseboards, I know where you can get rid of them, cheap. ;-)
  • bryan_10
    bryan_10 Member Posts: 7
    someone

    turned the thermostat off in the house and it was not check for over a week. Outside temps were -10 to -15. Froze and cracked all 16 A/S Sunrad convectors. I'm doing it because I have to, not because I want to. Will the BB work?
  • Mike Reavis_2
    Mike Reavis_2 Member Posts: 307
    Is this a rental property?

  • bryan_10
    bryan_10 Member Posts: 7
    unoccupied

    Catholic Rectory. No full time priest, obviously no one checked on it through the holidays.
  • Steamhead
    Steamhead Member Posts: 16,710
    It will work if sized correctly

    and if the Monoflo tees will divert enough water to feed the baseboards. You may run into trouble here because the usual fin-tube baseboard needs higher flow rates than cast-iron radiators do.

    Several companies make cast-iron baseboard- this might be the way to go.

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Contractor"
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • bryan_10
    bryan_10 Member Posts: 7
    in Midwest

    finding new cast iron BB maybe tough to do. Thank you for the suggestion, I was not sure if we could get water through the BB or not. Do you know if there is a way to tell what the pressure drop through the tee or the rad needs to be? Will try to track down Cast BB in the Morning.
  • Steamhead
    Steamhead Member Posts: 16,710
    Maybe not so hard

    Any Burnham, Slant/Fin or Weil-McLain dealer should be able to get it for you.

    Get a copy of Dan's book "E.D.R.". It has rating charts for many old radiators and I believe your Sunrads are in it. Then you'll know how much heat each radiator is supposed to get. If the building has had insulation, storm windows etc. added, do a heat-loss on each room and size your new units from this. You might be able to use smaller units, or run with a lower water temperature.

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Contractor"
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • bryan_10
    bryan_10 Member Posts: 7
    ratings

    I have an American Standard ratings book that gives me the ratings for each section/radiator. I just replaced the boiler this fall with a Munchkin. Low temps are a good thing, but am concerned with water flow.
  • Wethead7
    Wethead7 Member Posts: 170


    But no low temp with fin-tube. Fin-tibe likes higher temps than Cast iron. You may end up with losts more baseboard. Than old Rads.

    Where in the mid-west are you.

    Mike
This discussion has been closed.