Individual construction assumes the presence of all communications and amenities, including hot water. To solve this problem in private houses and cottages in the design autonomous heating connect a combined water heater that combines all the advantages of storage and indirect type. Namely:

• Universality of use of a water heater in systems of various types.
• Ergonomics - the most efficient water heating at minimal cost energy resources.
• Year-round hot water supply heating period uses the energy of the boiler, the rest of the time - heating elements.
• Possibility to use both heat sources for rapid heating of large volumes.

Combined water heaters are able to effectively use the heat generated by the heating system: central, autonomous, and even in combination with solar collectors. Thanks to storage capacity large volume (up to 500 l), the supply of hot water is sufficient to meet the needs of not only residential buildings and cottages, but also for office space and production facilities. Application possibilities indirect heating significantly expanded due to installation in water heaters additional source- electric heater.

Principle of operation

The process is carried out in two ways - indirect (due to energy heating equipment) or direct (using a heating element).

The design of the combined boiler includes the main components:

• Insulated enameled steel or stainless steel container enclosed in metal body water heater.
• Tubular heat exchanger.
• Electric a heating element located in the process flange.
• magnesium anode.
• Built-in thermostat.
• 2 nozzles - for flow supply cold water with a distributing nozzle and a hot intake.

Boiler overview indirect heating

Many companies produce various modifications of combined water heaters: mounted or stationary, vertical or horizontal.

1. Czech manufacturer hot water equipment Dražice offers devices with an enameled inner tank with a volume of 80 to 200 liters, covered with a layer of 42 mm polyurethane foam as insulation. The working thermostat controls a ceramic heating element with a power of 2.0-2.2 kW.

• Boiler vertical hinged combined Drazice OKC 100 with a useful capacity of 95 l, can operate in pressureless accumulation mode or forced circulation in the temperature range from 5 to 74 °C.
• The OKCV 125 water heater model is made in a horizontal design, which is important for rooms with limited space. A double-circuit heat exchanger indirectly heats first the upper layer of water, then the lower one. This principle applies to autonomous systems heating with heat generators or solar panels.

The average cost of the combined Drazice water heater OKC 100 - 21,800 rubles, OKCV 125 - 21,100.

2. The Italian company Ariston offers boilers with empty flange holes - the buyer independently chooses a set of electrical accessories (heater, flange, thermostat with a submersible element) with a capacity of 3.0-6.0 kW.

• Combined water heaters BC1S MAGNESIUM designed for floor mounting, equipped with one spiral heat exchanger. magnesium anode and special titanium coating internal capacity provide comprehensive anti-corrosion protection. Volume storage tank ranges from 200 to 450 l, productivity - 762 l / h.
• Boilers of the BC2S MAGNESIUM series have the same characteristics as BC1S, but guarantee almost twice the productivity of hot water supply due to the installation of two coils.

According to reviews, Ariston combined electric water heaters differ in speed - in 30 minutes you can get 200 liters of hot water, while long time maintain the set temperature. During the heating season, energy costs for the operation of the device are reduced to zero. Users note that regular descaling of the tank prolongs the life of the heater and heat exchanger, and also prevents a decrease in heating efficiency. The average price of an Ariston BC1S water heater is 32,960 rubles, BC2S - 38,240.

3. Gorenje offers combined hot water equipment made of steel High Quality. Anti-corrosion protection provide a special enamel coating of the inner tank and a magnesium anode. The thickness of the insulating layer from 40 to 57 mm allows to reduce heat loss, as well as the cost of energy resources to maintain a given temperature.

• Combined water heaters GBK are intended only for wall vertical mounting. 2 dry heating elements with a capacity of 1 kW each fully provide hot water in the hot season, while protecting the tank from scale formation.
• The KGV model series with two coils allows the optional installation of electrical element on the side flange or through the fitting.

Today, the presence of hot water in the house is not a luxury, but a necessity. If missing central water supply at home, then homeowners decide this issue on their own. Boilers are used to heat water from electricity.

An excellent option would be a combined boiler Ariston. Water heaters of this company provide high-quality work for many years.

How does a combined boiler work

Electric water heaters, which are familiar to most of us, heat water with a heating element. The heating element directly heats the water we use.

Combined water heaters allow you to use for heating water different kinds energy. Most often, the design of the boiler includes a heat exchanger coil and a traditional heating element. This saves electricity. As alternative source heat can be used boiler, central heating or solar panels.

Advantages of combined boilers

If you have a heating boiler installed in your house, which provides heat and hot water. Then you can consider that installing another device is extra waste money.

In fact, a combination water heater will greatly improve your home's hot water system. The main advantages of such boilers are:

• possibility of heating a large number water;
• during a large analysis of water, none of the household will experience a shortage in it. At the same time, you can wash dishes in the kitchen and take a shower in the bathroom, while the pressure and temperature of the water coming from the tap will not change;
• there are no additional costs for heating water, since it is carried out at the expense of own system heating;
• the possibility of using various heat sources, which allows you to have hot water at home after graduation heating season. In summer, the boiler can be powered by electricity or solar panels.

Disadvantages of an indirect heating boiler

If we talk about the disadvantages of using combined water heaters, then we can note enough high price boiler. In addition, it is installed together with a heating boiler. The cost of the complete arrangement of the heating and water supply system is quite large.

All this equipment takes up quite a lot of space, for this you will have to allocate a fairly spacious room.

In order to heat up the water in a large boiler, it may take several hours, during which time the temperature in the heating system will drop.

Otherwise, the operation of the combined boiler does not cause any complaints.

Heating systems are often equipped with equipment such as a combined boiler. The combined boiler is a water heater for heating and hot water systems. This equipment can work both from electricity and from a gas supply system. This depends on the type of heating element installed. Most often today, boilers powered by electricity are used.

Design and characteristics combined boiler

In addition to the electric heating element, the composition of the combined boiler includes a tubular-type heat exchanger. Through this heat exchanger, the boiler is connected to the heating boiler. The combined boiler has in its design an internal tubular heating element of a certain diameter. In this case, the diameter of this component is calculated in such a way that during operation there is no excessive hydraulic resistance to the movement of fluid in the system. Power this device is 3-6 kW. This provides a sufficiently high thermal effect of the boiler coil, comparable in power to a heating radiator. The combined boiler provides hot water in enough and comfortable living. In summer, it is possible to operate a boiler to obtain required amount hot water.

Boilers operating by means of combined heating are excellent equipment for the preparation of hot water in country houses as well as public and administrative buildings. And thanks to the high performance of the device, it is possible to provide hot water even to objects with a high consumption of hot water.

Private houses and cottages appear today like mushrooms after rain. However, just erecting buildings is not enough, it is necessary to make their premises cozy and comfortable, which is impossible without high-quality hot water supply. Without centralized systems it can be provided with the help of autonomous equipment, and this article will focus on combined indirect heating boilers.

The following systems are most suitable for private houses:

• with flow type water heaters;
• With double-circuit boiler with built-in boiler;
• with a single-circuit boiler, supplemented by an indirect heating boiler.

As a rule, large families live in private houses, the consumption of hot water in which is quite large. At the same time, the number of outlets for its consumption increases several times compared to small housing. In this case, the most rational decision will be the installation of a single-circuit boiler with an indirect heating boiler.

This "representative" of autonomous equipment can be floor or wall-mounted, but the principle of their operation is the same. Its essence lies in the fact that the energy of the coolant that is used for space heating is also intended for heating water.

By its design, a boiler is a tank that has a coil with a coolant inside it, connected to the circuit of a water-heating boiler. When the boiler is connected, and there is water in the tank, the coolant heats it up, passing through the coil. This process is more intense when the area of ​​the coil is larger.

There are also capacitive boilers that are slightly different in design. The coolant in them occupies the space between the smaller tank with sanitary water placed in a large.

Regardless of the design, the following nuance takes place: heating water for household needs directly depends on the operation of the heating system. This entails some difficulties in the warm season, when more water is needed, but there is no need for heating. The solution to this contradiction is the installation of an external combined type boiler.

Design and scheme of work

A feature of this type of boilers is that they can serve as boilers for indirect heating through the heating system (relevant for winter time), and boilers for direct heating of water bypassing the heating system (for summer). Provide this additional functional elements designs - gas-burner or TEN. Of course, in this case, the boiler provides for another monitoring and control system, which affects the price of the product.

Today on sale you can easily find wall-mounted, floor-standing and combined boilers from manufacturers of the most different countries. So, products of the ACV, Drazice and Alphatherm brands can be desktop or wall-mounted and equipped with an electric heating element. If desired, you can find models in which the heating element can be connected separately, and not be built-in.

Advantages and disadvantages

The advantages of combined indirect heating boilers rightfully include:

• long service life;
• no costs for the purchase of additional fuel;
• the ability to operate equipment on any type of fuel, up to solar energy;
• uninterrupted operation of a water heater with several water intake points without reducing the level of performance.
• sufficient capacity of the boilers provides heating of water in a short time.

With all these advantages of combined water heaters, there were some drawbacks. These include:

• the need for installation additional devices, for example, a circulation pump;
• the obligation to take into account the boiler in the design and approval engineering systems at home even before its acquisition;
• dependence of the operation of the water heater on the operation of the heating boiler.

Thus, based on your financial capabilities and the needs of your family in water, you can purchase exactly the equipment that will provide you with the comfort and coziness of living in your own home.

Combined boilers are boilers capable of heating water different ways: via electric current, thermal energy of the boiler or heat pump, solar energy. To do this, they have a heating element and a heat exchanger (coil). The combined heating boiler is easy to use and effectively solves the problem of preparing hot water. Its main advantage lies in the ability to work in 2 modes - from the boiler and with the use of a heating element, which allows you to choose the optimal suitable option heating. So, outside the heating season, you can not turn on the boiler, but heat the water with a heating element.

Combined boilers can be purchased for installation in different rooms- cottages, apartments, country houses, enterprises, etc. In the StroyObjectSnab Trade House you can buy high-quality combined boilers of foreign and Russian production, and their sale with us is carried out at extremely attractive prices, thanks to direct cooperation with leading manufacturers.

Design features of combined boilers

Water heaters of this type include:

• Tank - a reservoir with heated water. It is made of steel and coated with enamel inside.
• The coil is a tubular heat exchanger of a zigzag shape. It heats water with the help of a coolant circulating inside the tube.
• Ten - it can be in contact with water or be protected from it by a metal flask. "Dry" heater has a longer service life and improved electrical safety.
• Magnesium anode - protective element protecting the tank from corrosion.
• Thermal insulation - a layer used to reduce heat loss and save energy.
• Water inlet and outlet pipes.
• Temperature indicator.
• Thermostat with external control unit - for optimizing the operation of the device and convenient adjustment of the heating temperature.

Water circulation in the combi boiler is provided by a pump installed in heating system. According to the installation method, combined boilers are wall-mounted and floor-mounted.

Benefits of using a combi boiler

These water heaters provide hot water. different ways, which minimizes the risk of being left without heated water. They also help to save money - when the boiler works for heating purposes, it simultaneously heats the water in the boiler, and if there is no need or desire to turn on the boiler, you can use a heating element.

Combined boilers, presented for sale in our online store, are of European quality and are designed for a long service life. When choosing a suitable water heater model, it is necessary to take into account the power of the heating boiler and the brand of its manufacturer (it is recommended to choose a boiler of the same trademark, which is the boiler). The number of water points and the required water flow also matter.

Where to buy a combined boiler in Moscow?

In the Trade House "StroyObjectSnab" it is easy and profitable to buy combined heating boilers with the performance you need, from well-known manufacturers.