How to Bleed the Pressure From a Steam Boiler
- 1). Map out the radiators in your home to create a plan of attack. You must start with the radiator closest to the furnace and work sequentially to the radiator located the furthest away from the furnace. This does not mean the physical distance from the furnace. It means the first radiator mounted to the water pipes that come out of the furnace. To determine this, you must trace the water lines that come out of the furnace and connect to the radiators. It is not vital that you go in sequence but it makes the task easier as you expel less air at each individual radiator.
- 2). Locate the bleeder valve at the top of the radiator. Place a cup directly under the valve and then turn the valve counterclockwise slowly until you hear air escaping the valve.
- 3). Turn the valve closed again once water starts to stream out of the valve. Water will first start to spit out with the air. Do not turn off the valve until water streams out without any air.
- 4). Repeat this process with each radiator in the home.
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