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.

Types of Radiators

alanm
alanm Member Posts: 108
in Strictly Steam

was wondering if the types of radiators would cause any issues. House around 1896…steam heat - one pipe….(now oil but inittally was coal!)…seems most radiators are steam radiators but there are some smaller tube ones….just so happens they seem to be the ones that make the hissing /loud noises when heat is first on. see photos…..would the radiator sizes make any difference? 3111 is the larger radiator.

IMG_3108.jpg
IMG_3109.jpg
IMG_3111.jpg

Comments

  • delcrossv
    delcrossv Member Posts: 1,714

    Where's the vent?

    image.png

    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
    Grallert
  • alanm
    alanm Member Posts: 108

    out of the picture…..it is about 1-2" from the top

  • dabrakeman
    dabrakeman Member Posts: 696

    Then it is in the wrong spot. Up top it will tend to close prematurely before the radiator is properly filled with steam. This effectively makes the radiator smaller. What vents do you have on those small radiators? When you say they are making the hissing "when the heat first on" do you mean when first on during a morning recovery?

    delcrossv
  • alanm
    alanm Member Posts: 108

    Hoffman adjustable….and yes…first thing in the morning…turn up a degree or two and it sounds like airplane taking off and wet steam

  • delcrossv
    delcrossv Member Posts: 1,714

    Close off that hole near the top with a 1/8 plug and drill and tap for 1/8 NPT here.

    vent2.jpg

    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
    RTW
  • alanm
    alanm Member Posts: 108

    thanks. So by doing this it will stop the hissing/airplane take off noise upon the morning?

  • delcrossv
    delcrossv Member Posts: 1,714

    Can we see your mains vents? What's your pressuretrol set at?

    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
  • alanm
    alanm Member Posts: 108

    see photos..main vent is hoffman 75 and it looks like pressure is set at lowest.

    IMG_3106.jpg
    vent 1.jpg
    IMG_3107.jpg

  • Long Beach Ed
    Long Beach Ed Member Posts: 1,497

    Try a different brand radiator vent before doing anything else.

    Night setbacks often cause this problem with steam systems.

    If you post a photo of the piping above the boiler, and of the runout (horizontal pipe) to one of the noisy radiators, these folks will give you plenty of suggestions before you start throwing parts at the problem.

  • alanm
    alanm Member Posts: 108

    thanks….i have used all types of radiator vents….what is the best or what will work for me…..is that Hoffman 75 alright? if that is best or undersized..what problems would i see in the system with that….thanks again.

Categories