Main Air Vent missing

Jerry Withers

Hi,



I have been searching for the longest time where my main air vent is located and have come to the conclusion that I do not have one.



Then it hit me,... In my foyer I have a capped steam pipe that come out right next to one of the radiators. It is at the end of one of the longest runs. Could it be that this is where the main vent should be?



Attached is a photo I took.



Any ideas what kind of air vent I could install on this? Any problem with it being in my foyer?

jpf321

could very well be...

the place .. if it wasn't originally, it would probably make a good place for one now. main vents are almost always STRAIGHT .. so perhaps you need a STREET EL, and depending on the size on that plug, perhaps a REDUCING STREET EL. or a STREET EL with a REDUCING BUSHING. or you could remove the entire elbow you have now and use a coupling + bushing.

Jerry Withers

What kind of Main Air Vent?

Assuming that I  get a bushing and a coupler to install a main air vent, which air vent would be the best to install?



 

Steamhead

How long is your steam main

and what pipe size is it?