Overhaul & Replacement of Double-Walled Indirect Water Heater

As you know, nowadays most buildings and apartments are equipped with a central engine room. One of the important pieces of equipment in engine houses, which is responsible for supplying hot water for consumption, is the double-wall source of hot water. Double-wall sources of hot water are heat exchangers with tanks that heat the water without any contact between the water and the heating water. The double-wall source of the hot water supply (coil) is an inseparable part of motor homes Therefore, it can be easily guessed that if the double-wall source has a serious problem, the residents of the building will face problems in providing hot water.
In this regard, materials have been presented under the title of repairing and replacing the double-walled hot water source to give explanations regarding the common problems of the double-walled water source, please stay with us. that if the inner wall of the double-walled spa source is punctured, the water will overflow from the expansion source on the roof of the building, and if the outer wall is punctured, the water will enter the engine room from the side wall of the source.
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Why does the double wall source of hot water get damaged?

As the name of double-walled sources suggests, these sources consist of two nested cylindrical pockets that are made horizontally due to their operation and structure. The sheets used in the construction of this equipment are galvanized sheets. Galvanized sheets are resistant to rotting and corrosion due to their galvanized coating. One of the big problems that these sources face is the hole in the source. Several factors are involved in good perforation. In the following, we will discuss some of them.
The double-wall source usually begins to weaken from the points where it has been welded, eventually leading to water leakage and eventually perforation. Non-original weldings and sheets that are not thick enough and welded to each other multiply the possibility of the source getting punctured over time.
Among the many other factors, we can mention the formation of sediment in the wall of the source and a lot of solutes in the water flow (which contains a lot of cations and heavy sediment).

How to repair a holed double-wall spa source?

As mentioned above, the hole in these sources is one of the most important reasons for its replacement. If the outer wall of the double-wall source is perforated, it may be possible to increase its life by welding and using it; But these repairs are not permanent and you should think about replacing the source. In some cases, the perforation may have occurred from the inner wall of the source, in such a situation, firstly, the city water pressure causes the expansion source water to overflow on the roof of the building, and secondly, in such a double-walled source, it is not possible to repair and the source must be replaced.

Important tips for maintaining a double-wall hot water source

Double-wall sources have advantages such as low initial purchase cost, the ability to keep hot water hot without the need for a circulator pump, very low-pressure drop, etc. compared to other methods of providing hot water; like using coil resources. By taking preventive measures and considering the sufficient thickness of the galvanized sheet and other things, the lifespan of these sources can be increased. Below are some of these factors.

The thickness of the source plate can be mentioned as one of the effective factors during the repair and replacement of the double-walled spa water source. Keep in mind that the thicker the sheet used in each double-wall source, the longer the double-wall source will be punctured and the longer the service interval will be.
Among the other factors that can be mentioned are the installation of a resin hardener (to prevent sedimentation in the water flow of the heating system) and the installation of thermal insulation (to prevent the loss of thermal energy). It is important to choose a suitable pump with source capacity; Because the lack of compatibility of these connections may lead to injuries caused by the bursting of the source. For better maintenance of double-wall sources, you should know that:

To prevent hot water from escaping into the pipes, it is necessary to install a one-way valve.
To prevent sedimentation and increase productivity, you can use a hardener.
It is mandatory to use a temperature and pressure safety valve on any spa storage source (double-wall or coil).
When choosing and ordering the purchase of a double-walled spa source, be sure to pay attention to the outer diameter and length of the double-walled source for the possibility of passing through the corridor and the engine room door of the building and its installation.

The best brand of double-wall hot water source

In addition to the items mentioned above, other items such as brand, warranty, after-sales service, etc. are also very important. As you know, today many different manufacturers are working in the field of producing these double-walled spa sources. But one of the best-specialized groups in this field is called Dematheheez company. In the following, some of the best-selling double-wall spa sources are mentioned.

300-liter horizontal double-walled hot water source
400-liter horizontal double-walled hot water source
600-liter horizontal double-walled hot water source
You can also read the article WHAT IS CENTRAL HEATING BOILER AND WHAT'S ITS PERFORMANCE OF IT for more information.

Final speech

The specialized collection (Damatajhiz) (the first and most reliable authority in the country in the field of building facilities equipment and all air conditioning devices), offers you all kinds of sand filters and hundreds of other products, guaranteeing the originality of the product, valid warranty, and reasonable price. In addition, if you have any questions about choosing and comparing the brands of this product, you can get free advice from the heating equipment experts.

In Iran, the first and most famous specialized group in the field of building installation equipment, air conditioners, and all equipment for swimming pools, saunas, and jacuzzis since 2004, DamaTajhiz is a specialized group. Refer to the time of this group. For more information, you can get advice from the experts of DamaTajhiz Engineering and Production Company by calling 021-88822550.

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