6 Reasons Why Your Boiler is Leaking

A boiler is used to produce hot water or steam. The hot water boiler is for domestic use while the steam boiler produces steam to power industrial heating purposes. Boilers serve a great purpose in our home, it keeps us all warm and supplies us with hot water. That is why it is important to always maintain it. Leaking is the most common problem in a boiler, it can pose danger to you if not rectified at once. To learn the reasons why boiler leaks keep on reading this.

Water Pressure

The water pressure in a boiler unit should be between 1 and 1.3 bar, this is the range at which the boiler is designed to operate. There’s a gauge that indicates the pressure of the boiler. If in case the needle points above 2, you should lower the pressure at once to avoid untoward incidents. If the boiler pressure is too high you should know that there is a leak. This is because the boiler needs to release some pressure to avoid collapse.


Corrosion is a natural process that transforms or destructs a metal by chemical reaction with an environment which often happens in a damp area. This happens when the boiler leaks, the tanks, and pipe will eventually weaken because of corrosion brought about by the leak. If you will not act on the leak at once it may spread further not only to the pipe or valve. This may cause the replacement of the boiler itself. Do you have any idea how much is a new boiler? Replacing a new boiler might cost you a great deal more than you expect, save yourself the trouble of spending more buying a new unit. Call an expert once you saw the leak.


Boiler’s Temperature

Aside from the pressure gauge, a boiler also has a temperature valve named temperature control valve(TCV). It tests the temperature of the water. It regulates the temperature of the water from becoming too high thus avoiding the water coming out of your faucet to become scaldingly hot.  Leaking the valve suggests that the temperature is too high. It’s important to maintain an average temperature setting of 180 degrees Fahrenheit and no higher than 210 degrees Fahrenheit or you will have a serious problem.

Poor Installation

The most common reason for leaks is the poor or improper installation of the boiler. Improper installation of a boiler is due to the installer’s inexperience or sometimes by the owners who do it. Putting up a boiler needs to be done by an expert in the field, because improper installation may cause serious damage not only to your life but also to your properties. Problems such as loose connections, poor water circulation, danger from gas leaks, and water leaks. To prevent this hindrance from happening ask for professional help in installing your boiler.

Pump Seals

The boiler has a pump that pushes the water around your home’s water system, and this pump has a seal that prevents the water from leaking out. If the pump rubber signature is not properly installed or sealed or in some instances it cracks and goes loose it will cause the water from leaking. This leak will then damage the boiler, so check the seal regularly and see if it is sealed or needs to be replaced.

Years of Service

The number of years your boiler has been with you will take a toll on your unit. The same as any other system in your home, your boiler will age and eventually break down. Complications like corrosion, rust, cracks, and most common, leaks are only some of the results of a long period you are using your boiler. The average lifespan for a boiler is said to be between ten to fifteen years.  Remember buying a new boiler is expensive,  you only have to take proper care of it to keep it usable for a longer time and save a lot of money.

Anyone who experienced a leaking boiler knew how inconvenient and frustrating it can be, so next time that your boiler leaks don’t hesitate to call an expert and repair it at once. Your immediate action will save lives and damage to property and also prevent your boiler from malfunctioning, making it last longer. On the other hand, to avoid leakage have an annual service by an engineer to ensure that your system is running correctly and safely. Furthermore, a boiler leak is not a do-it-yourself thing, let the expert do their job.

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