Do you notice that your heating is inefficient? That your radiators are cold? Do you hear like whistles? Abnormal noises? This is because there is an air infiltration in your heating circuit and so you have to purge your heating system. How to do? We will help you!
How does air seep into your heating system?
When your central heating consists of a gas boiler and radiators, the latter two are connected by pipes in which hot water circulates.
Over time, the air seeps into the pipes creating air bubbles that do not allow the even distribution of water in the pipe.
Why Bleed?
The presence of air bubbles in the pipes of your pipeline prevents proper operation; heat is less homogeneous which pushes your boiler to work, even more, it generates a huge energy waste and increases your gas bill.
Bleeding your heating system, therefore, allows proper circulation of hot water in the pipes and thus a uniform heat diffusion and will enable you to realize essential savings.
How to bleed a gas boiler
The cold is approaching, so we must have the entire heating system ready, and in the case of having a gas boiler, make sure it is working correctly and that there is no accumulated air. Let’s see how to purge a gas boiler, step by step, and in a natural way.
The gas boilers have many benefits, including that we can control the temperature of the thermostat, which is cheaper than condensation or take up less space, but also comfortable with everyday use in the colder months air collects in the heating circuit (the pipes that transport the hot air), causing it not to heat the house thoroughly. Let’s see how to proceed because when it is necessary to purge your gas boiler, you will notice it because it makes strange noises when we turn on the heating.
Steps to purge a gas boiler
- The first step will then be to identify that noise and understand that it is the accumulated air that does it.
- What we have to do to purge the gas boiler is to put a flat screwdriver in the radiator of the boiler, you will see how the heater has precisely one part that is the boiler trap, that is where you have to place the screwdriver.
- Also, you will have to put a glass underneath and turn as if it were tap in a counterclockwise motion so that we will see how the liquid falls in the container.
- You must do it slowly because if you do it very fast or hard, and you unscrew it suddenly, the water will come out with a lot of pressure.
- In the case of having an individual heating system, it is better to disconnect the boiler one hour before purging the gas boiler, so that you allow the air to rise to the top of the radiator.
- While purging, that is, while the water is coming out, you have to check the pressure of the boiler’s barometer (which is usually water or digital), knowing what pressure is recommended by the manufacturer, which is measured in bars. It often is between 1 and 1.5 bars.
- Your gas boiler may have an automatic purge system, but sometimes due to that automatic purge, the boiler will drip, and with this, the furnace may break or even cause a flood. So we’ll have to be vigilant about that too.
- Purging a gas boiler is easy, but if we do not have experience doing it, we have to be very careful. Since you run the risk of ending up taking out the water as we mentioned with a lot of pressure.
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