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What type of vent for one pipe baseboard radiator?

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pjoy
pjoy Member Posts: 3
in THE MAIN WALL

In my bathroom there is a short one pipe baseboard radiator with what appears to be a hygroscopic coin vent. There is not enough room to install a traditional vent. Is this the proper way to vent this radiator?

Comments

  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,749
    edited December 2025

    depends on what type of boiler you have. When you say "one pipe" are you referring to steam? If yes, then a hydroscopic coin air vent is not the best however the specifications do allow for venting air from a steam radiator. I'm not a fan of that vent for steam.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

    mattmia2bburdpjoy
  • mattmia2
    mattmia2 Member Posts: 15,988

    they are marketed as for steam but they are not. you need to figure out how to connect a radiator vent to it, probably need to shift the vent connection around with some fittings and nipples, might need to extend it out of the baseboard cover, can use a straight or angle vent, whichever fits best.

    pjoy
  • hot_rod
    hot_rod Member Posts: 27,064

    if it is a hot water system, hydroscopic vents are a good option.

    This one has 3 operating conditions, manual, automatic, or off.

    If they are used a lot as automatic vents, the cellulose upper cartridge should be replaced every. 2-3 years

    This model has a ball check built in, so the upper part can be removed, replaced without relieving pressure in the system.Hydroscopic vents tend to work well with dirty rusty systems . But particles can cause problems.

    IMG_1332.jpeg
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Waher
    Waher Member Posts: 369
    IMG_6133.jpeg

    1/8” brass nipples and elbows.

    pjoy

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