In cold weather, the island becomes a question of hot water in places where there is no centralized. Usually such places are cottages and country houses. Installation ready equipment will cost the owner of a relatively cheap. Therefore, many decide to make indirect heating boiler with his hands. This option is considered to be one of the most inexpensive and economical in use.
Principle of operation
These units have a simple principle of operationSufficient only to understand their device. Thus, the device is a tank inside which are the heating tubes. According to him fed coolant directed to room heating. While liquid is flowing in the device is heated and water is used for household purposes. That's why the machine and gets its name. The heating coil is carried out in two ways:
- connect the system to a more powerful device to heat (eg boiler);
- connection to the central heating system.
Kinds
There are several options such tanks:
- The most popular use is considered within the container metallic coil made from a tube of small diameter. The collect water vessel is heated by contact with a curved component, wherein the heat transfer medium flows.
- Pipes can be placed not in the center, and close to walls. More system is no different. Such an embodiment is considered to be even better, since the area of contact of water and a flexure more.
- Tubes are not used, and containers with different diameters. They are located one inside the other. The smaller dialed liquid for household purposes, and the coolant is supplied into the space between the walls.
Before creating indirect heating boiler with his hands, it is necessary to consider all the positive and negative sides.
dignity
These units have a lot of pluses:
- reduced use of energy resources;
- reduction of operational costs;
- Available materials for the production and the minimum number;
- Water temperature is maintained always at the same level.
disadvantages
Despite the presence of obvious advantages, such devices have a number of disadvantages:
- for large units is necessary to allocate a separate room;
- heating a large volume of liquid held longer, while the temperature slowly rises in the building;
- the rapid emergence of deposits in the tank and on the coil, which should be removed by mechanical or chemical means at least twice a year;
- the difficulty of repairing the internal components - often takes place just a replacement.
Creating a boiler
- From the beginning, prepared container, which will act as a tank. You can use any stainless steel vessel, not even sealed. To work with him will need welding machine. It should be noted that the glass-ceramic and enamelled vessels such use is quickly wear out and require replacement. Therefore it is better to stay still on stainless steel. The most popular is to use a gas cylinder. It is cut in half, cleaned, primed and welded back. Of course, this can not do, but then for a long time near the water will smell of gas.
- Then you need to make high-quality thermal insulation of walls of the tank. This is done by using different materials: foam, mineral wool or other insulation. Insulation to perform the desired function, the entire surface should be covered. Often additional tank used for this purpose. Capacity is set to large, and just placed an insulating material therebetween.
- Coil. It is made of a small diameter metal tube. It is wound on a cylindrical object. It is best to fit the other pipe is much larger diameter. At the ends of the resulting spiral threaded fittings are attached. Do not make the turns are too close to each other, because it is not convenient to shoot or edit back. And it will need to make at least a couple times a year.
- After training there comes a time when you need to collect the boiler with his hands. Thus, the tank is done at two openings for cold water from below and the hot - top. This is due to the physical law that the hot mass always rise up. On opening mounted cranes. In addition, you need to do as another hole at the bottom - for the discharge pipe. This will help if necessary to quickly remove all the water from the tank. After the cut two more holes into which the metal fittings are installed. These will be fixed coil.
- After assembly, always checked the entire system for leaks. This is best done carefully. First, the only way it will be possible to achieve an optimum level of both heating systems. Secondly, when used in an oil system of the same or antifreeze may be problems when using water for household purposes. Not to mention the failure of certain components or even the entire structure. To check the coil need to lubricate with soapy water and let air inside. The same must be done with all the connections.
- Tank top covered with a lid with rubber gasket. It is also warming.
Interesting! There are options to mount even a plastic container, but it should be only from food PVC. Furthermore, problems may arise in case of accidental contact with the heating surface.
That remains is to make installation of the system. Can be used.
As can be seen, each can make your boiler indirect heating. He is considered an economical option not only during manufacture but also use. Such a system allows you to have heating in the house, and for a small expenditure of energy to get warm water for household needs. In this case, the tank volume can be done on the basis of needs.
