Water heater indirect household. Connecting an indirect water heater

The market of household equipment offers many alternative means that ensure the autonomy of the communication supply of the house. For example, boiler plants allow creating an optimal microclimate in rooms without centralized heating, and modern pumping stations effectively solve water supply problems. But the satisfaction of the need for hot water requires the presence of one more unit. For such needs, a storage indirect water heater is used, which helps to solve household tasks. For example, if you select equipment with a suitable volume tank, then household chores in the form of washing, washing dishes and cleaning will be performed regardless of the basic supply of hot water.

The device of water heaters

In a constructive way, any water-heating unit is a storage tank, that is, a boiler. It also heats the water with a heat exchanger. The system also organizes the infrastructure of pipes forming a closed loop. Most modern models are indirect electric water heaters, which are characterized by efficient work and convenient management. As a material for the tank, manufacturers usually use stainless steel, and the surface is covered with a special enamel protection from the effects of corrosive media. Inside, a magnesium anode is also provided, which controls the electrical potential in the boiler.

The outer surface of the tank also has a thermal insulation coating. Typically, the heater is polyurethane, which is practical, affordable and durable in conditions of prolonged use. In the upper part, indirect water heaters contain flanges with sleeves. This is a very important site, as it contains sensors for thermoregulators, thermometers and anodic holders.

Features of indirect heating

Usually electric or gas water heaters are used in a single complex with boiler equipment. In this case, they receive the necessary amount of heat from third-party equipment, so this mode of operation is called indirect. Despite the dependence on the boiler, this boiler can provide hot water for several points in the house at the same time. At the same time, it should be noted that indirect domestic water heaters do not consume either electricity or gas. They feed on the heat generated by the boiler. The operation of the equipment is automatic. Special devices determine the amount of heat required to feed the drive. The water heated in the tank can later be used not only for household needs, but also in the heating system.

Main characteristics

One of the key characteristics is the volume of the built-in tank, which on average varies from 80 to 150 liters. Typically, a capacity of 50-70 liters is enough to maintain a single-story house. But for a larger family, you should buy a model whose tank holds at least 100 liters. Next, you need to determine the power, the average range of which is limited to 150-300 kW. This index directly affects the heating rate. An effective indirect water heater has optimal power and pressure indicators. By the way, the standard pressure level is 6 bar. Equally important is the availability of automatic controls for the unit. For modern models, the presence of a thermostat has long become an indispensable condition for bundling, but there are also versions with ergonomic displays, timers and controllers.

Installation requirements

It is desirable to install a water heater near the boiler, so this possibility should be envisaged even at the stage of designing the boiler house. The installation method is determined by the design of the unit, for example, there are floor, wall and hanging devices. In this case, there are some nuances of installation depending on the power. So, models up to 150 kW can be installed in rooms, the height of ceilings in which should be at least 2.5 m, and the total volume of space - at least 15 m ³ . Also, the indirect heater should be located in the technical room only if there is a supply and exhaust system, a sewage system or a drainage receiver.

There are recommendations in the decoration of walls - it is desirable to plaster them or cover with tiles. If you plan to install a hinged model, you should make sure that the hardware in the wall or on the ceiling can withstand it under the condition of maximum loading. When performing a floor installation, you should also ensure that the cover does not slip.

Boiler connection

First, the posting is organized. All circuits of water supply are distributed throughout the house in accordance with the project, after which it is possible to start part of the electrical installation work. At this stage, the drive is connected to the network. It is important to consider that the system must operate from sources for the action of ACI-systems with corrosion protection. Direct connection of the indirect water heater is carried out through a socket outlet that eliminates errors in the connections in phases. The use of all possible extensions and tees is excluded. Then, water is poured in, followed by airing. During the first heating, it should be checked whether there are leaks in the tank and adjacent wiring of the unit.

Maintenance

Usually manufacturers specify in the instruction the necessity of annual control of equipment. In the process of this event, a complete check of the drive itself, as well as of the heating system as a whole, is carried out. The individual boiler components are also subject to audit, including protective devices, fittings and a tank, which must be cleaned of water stone.

The water heater indirectly must be dry-cleaned without fail. This operation can be performed with a vacuum cleaner without the use of washing mode. If an increased flow of water is noted during the testing of equipment with an open valve, then in future it may be necessary to monitor the pressure in the heating system or the use of a pressure reducing valve.

Manufacturers and prices

In the initial segment of a fairly high-quality model offers the company Protherm. Aggregates with a capacity of 100 liters and 200 liters with a power of up to 30 watts can be bought for 15-20 thousand rubles. In the middle price segment, the brand of Gorenje is worthy of its characteristics. In particular, for 25 thousand rubles. You can buy a water heater indirect with a power of 2000 kW. If you need not just a powerful but reliable unit, then you should contact the Baxi line. For 50 thousand rubles. The manufacturer implements the Premier Plus model, which has a 100-liter tank with a capacity of 300 kW and a pressure of 7 bar.

Conclusion

Equipment of this type is unique in terms of the lack of a worthy alternative. Of course, it is possible to provide other schemes for performing water heating with its subsequent distribution along the contours in the house, but any of them will be much more complicated in its configuration than indirect water heaters with their compactness and ease of management. Of course, they are not without flaws. Users, for example, note inaccuracies in the operation of automatic control systems, weak control of pressure, problems in the supply of water, etc. But most of these drawbacks are characteristic only of models from the lowest price level.