Corporate News
How to maintain and service a gas wall-mounted boiler
Release Date:
2022/05/20 14:44
Currently, many households install gas wall‑mounted boilers in their bathrooms because they allow for personalized temperature control. However, when it comes to the gas wall‑mounted boilers we use regularly, do we really know how to maintain them? Let’s take a look at proper maintenance procedures. As scale buildup on the inner walls of the heat exchanger continues to thicken, the diameter of the heat‑exchanger tubes becomes progressively smaller, and water flow becomes increasingly obstructed. This not only increases the load on the pump but also reduces the boiler’s heat‑exchange efficiency. The main symptoms include higher fuel consumption, insufficient heating, and reduced hot‑water output—both for domestic use and for sanitary purposes. If the heat‑exchanging components of the boiler remain under such heavy stress over time, the damage can be severe, particularly to plate‑type heat exchangers; users should therefore pay close attention when selecting a boiler brand. Most of the heaters we use are made of cast iron. Residual sand mold material and other impurities inside the radiators cannot be completely removed during installation. Moreover, since the heating system is constantly circulating water, and the boiler lacks a filter, corrosive residues from the heater and pipe, along with impurities in the water itself, enter the heating circuit and are recirculated by the boiler’s pump. At high temperatures, these contaminants continue to decompose; some form scale that adheres to the boiler’s internal surfaces, narrowing the tube diameters. Consequently, the pump must work harder, and prolonged operation can lead to reduced performance or even jamming of the circulation pump, significantly shortening its service life. For heating systems, because radiators tend to accumulate substantial amounts of debris during initial use, it is recommended to drain the dirty water after about one year, refill with fresh water, and replace the water every few years. Since each water change introduces a certain amount of alkalinity, maintaining a stable alkaline level in the system is important; therefore, frequent water changes are not advisable. After the heating season ends, you only need to clean and service the boiler separately. The above outlines key maintenance steps for gas wall‑mounted boilers; we hope this information proves helpful.
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