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.

Main Vent

Bufonski Member Posts: 9
How does one go about determining what kind of main vents to use? What size? How many? I have two on my system now, and am looking to replace them this spring. The current ones are too rusted and corroded to be of much use. Is there some sort of formula to use? I'm an amateur who is learning about the wonders of steam heat.


  • Steamhead
    Steamhead Member Posts: 16,473
    Measure the length and diameter of each steam main, and post the results here. We can guide you.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service