How To Bleed Baseboards And Radiators #1 Best Procedure

Procedure

How to Bleed Baseboards and Radiators with Bleeder Valves

If the system is hot and the boiler has been running be careful not to burn yourself when performing this procedure

That is not difficult, and it should not take much time. I always carry a rag with me to catch any water that may drip or even spray out. If the system is hot and the boiler has been running, be careful not to burn yourself when performing this procedure. Find the air bleeder valve and open it slowly. If water comes out right away, then this radiator or baseboard should be okay. It will require no further bleeding. It is likely if it is one of the radiators or baseboards that were not working that you get some air that bleeds out of the bleeder valve when you first open it.

Of course, you want to open the valve slowly and maybe an eighth of a turn. Eventually, the air will bleed out, and you will get water. That is when you will need the rag to catch the water. When you get all water (no air), then close and secure the bleeder valve and move on to the next radiator or baseboard.

If There are no Bleeder Valves - What to Do? Baseboard Heat Without Bleeders

How to Bleed Baseboards and Radiators

In some cases, either because of poor design or cutting corners, there may be no bleeder valves in your radiators or baseboards. In any case, in the risers within the hot water boiler loop, there should be automatic air vents. Automatic air vents will automatically bleed the air from the system (see photo above). Furthermore, the automatic air bleeders can become fouled and need replacing.

Furthermore, other problems with poor circulation in a hydronic loop or hot water boiler loop can cause issues with heating. Peruse our site here, and you will likely find an article addressing these issues. Here is a photo (an older photo with not so great quality) of boiler installation. The piping arrangement should have valves and drains for a fast purge of the entire loop system.