Water pressure in the boiler itself may be insufficient, to provide cottage hot water. To recycle hot water through, it is necessary to correctly mount the GVS system with the installation of the circulation pump.
In large summer houses, experts recommend installing a hot water system (DHW) of a centralized way of heating water, through and an electrical column (one can also use a single-circuit gas boiler). In this case, to ensure the necessary reserve of hot water, an indirect heating boiler must be mounted in this system.
The boiler volume is calculated taking into account all people living in the house (for a family of 4 people, there will be a boiler for 100-150 l.). Water in the GWS system is heated using a heat exchanger that is connected to the heating source (boiler, column).
The GWS boiler system has several inputs and outputs. The feature of the construction of indirect heating boilers is that a coil is mounted in the form of a spiralized tube from a metal, which passes hot water from the boiler. Due to the heat exchange between hot water in the coil and cold water in the boiler, the fluid is heated inside the boiler. This is how hot water is created for the needs of a person.
The entire HBS system has a closed work cycle. If for a long time hot water is not used, it starts to cool. When a person wants to take advantage of hot water, he will surely collide with the problem of the original absence. When the crane is turned on, the system itself is activated and water heating begins. But before that time it warms up to the desired temperature, it can pass a few minutes.
So that you can use hot water immediately after opening the crane, the system is mounted, which ensures the recycling of water along the contour constantly, regardless of whether a person uses hot water, or not.
Uninterrupted water recycling through a boiler is carried out using the installation of additional equipment: an expansion tank, reverse and safety valves, a deck air valve.
Thus, the recycling of hot water through the boiler passes with the help of a circulation pump, heat exchanger and additional equipment, which is mounted in a single DHW system. As a result, a person does not have to wait until the water is heated, passing water for some time.
Recycling Boyler
One of the most important and complex installation processes of the hot water system is the strain of a boiler with recycling, but it is quite realistic to implement it.
One of the most economical and efficient water heaters for home and cottages, experts consider an indirect heating boiler. As a source of water heating, gas, electricity or heat exchanger can be gas. It is the heat exchanger that provides an efficiency of the use of a DHW system with an indirect heating boiler.
From the correct strapping of the boiler, the further functioning of the entire system depends. The concept of strapping can be defined as a feature of the installation and connection of the DHW system to the source of water heating.
When making the boiler and the entire system with recycling, you need to:
- Set the recycling point. It is usually located in the center of heating capacity;
- The supply of cold water is produced in the lower hole of the boiler;
- Hot water removal must be mounted in the top of the boiler;
- The pipe of the coolant is connected on top, and passes down (the circulation of the water of the heat exchanger is to pass along the contour, the input of which will be at the top of the boiler, and the outlet - bottom).
- To the source of energy, pipe supply should be carried out according to the rules of installation of materials, and connect with adapters. Valves and cranes.
It should be known that the effectiveness of the DHW recirculation system depends on the home heating system. This contributes to an increase in the efficiency of the indirect water heater (boiler) by 35%.
The strapping of the boiler with recirculation is carried out by a standard set of materials: cranes, PVC pipes, adapters, reinforcement products, pumps. You only need to choose high-quality certified products from durable materials. It is categorically recommended to use corrugated hoses and powder metallurgy material.
Boiler recycling scheme
The recycling of water in the GVS system is necessary in order to provide hot water to any point of the system without additional spoiling. To do this, the contour is mounted, according to which water is passed from the boiler across the entire system, and then returns back to the boiler. Recycling with a small pump, which works quite silently. Such a system contributes to the support of the stable hot water temperature at any point at home.
Among the common recirculation schemes there are several basic options:
The choice of a method of heating water and heating, as well as methods for its recirculation through a boiler, should be carried out in accordance with the clear calculations of all consumers and the capacity of the coolant. The advantage among the main schemes have a boiler with three-way or servo valves.
Video on the organization of hot water recirculation
