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How to remove the air from your boiler heating system

Table of Contents
5/5 - (2 votes)

Now not any two systems will look the same. Only the boiler is factory-made, the rest is done by the installer himself. However, for the most part, you will have the parts. One very important thing that I missed in the video. When adding water, it’s a good idea not to add too much at once.

If you are planning on doing any work on your boilers like changing valves, expansion tank, or really anything that has to do with the water you will need to turn off the water supply to the boiler. More than likely this will be a 1/2 line with a single valve. Try looking for the regulator valve.

How to remove the air from your boiler / heater
Watch this video on YouTube.
Doing my best to bring you the best videos I know how.

Comments ( 5 )

  1. I watched you video and attempted to do this . However at some point I messed up! How do I get water back into the boiler?

    • Hi Kristin how are you. On the boiler there is a fill valve regulator. This should always be on, there for you should not have to worry about filling it your self. Make sure any water valves leading up to the regulator are on. Counterclockwise.

  2. Hey really enjoy your videos…….
    That valve above the expansion tank .i noticed a month ago , furnace not running ,
    That it was leaking water on the floor…out of the valve schrader … have any idea what would cause this….I had to tighten the cap on it to get it to stop….

    Thanks Rick…
    Not an old system….

    • Most of the time it’s just air trying to come out. You should never close that cap. Or you could have a bad self bleeder. It’s some what normal for some water to come out of that.

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