How to lower or increase your boiler pressure

As the winter continues, having a fully-functioning boiler in the home is essential to keep your family comfortable in the cold.

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One way in which a boiler can cause an issue with your heating system is by being at the incorrect pressure. According to the Energy Saving Trust, heating is responsible for more than half of our annual energy costs, so ensuring that your boiler is running efficiently is good for both your pocket and the environment.

If your heating is not working effectively, or the water is taking an age to heat up at your basin, it could well be that the pressure of your boiler is not correct. Thankfully, with most modern boilers, adjusting the pressure is a very simple task that can be completed without the need for an engineer to visit.

Let’s take a look at some tips for dealing with the pressure of your boiler. If these steps don’t fix your issue, you may need to book an engineer for a boiler service Gloucester. Companies such as are available to help with your heating needs.

Raising the pressure

Generally speaking, raising the pressure of the water in the boiler is a very simple operation, performed by adding more water to the system. In most homes, you should find a tap situated near your boiler for this very purpose. Before adding water to the system, it is important to check your pressure gauge on the boiler and know what the optimum pressure should be, which will differ depending on the manufacturer and model of your boiler. If you do not have the instruction manual, copies of most manuals are available online in pdf format.

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Lowering the pressure

If your pressure gauge is reading too high – basically anywhere near the red zone on the gauge – you need to address this. If the pressure is rising rather than just being too high, your boiler could become dangerous; in this case, you should shut it down and call for assistance immediately.

To reduce the pressure of the system, the easiest way is to bleed some water from a radiator using a radiator key and a container to catch the water.

If these tips don’t rectify your situation, it may be best to contact an engineer to take a look at your boiler.