A good option is the combined boilers heating firewood or two boilers, one of which works on solid fuel, and the other on gas.

Any of these two options makes it possible to get warm in the case when there are no firewood in the furnace, and there is still gas in the cylinder. It is better to combine two different boilers because the network will work constantly, even if one of the devices break. If the gas-firewood device breaks, the system stops working and it will be cold in the room.

The difficulties of using two boilers in one system

The main difficulty lies in the fact that gas boilers for a private house should work in a closed system, and the most secure for solid fuel devices is open. It is in demand because the boiler can heat the water to 110 ° C or more by lifting pressure above the permissible limits.

It can be reduced by reducing the intensity of burning. But the effect will be visible when the coals are completely burned. Even with weak burning, they are very hot and continue to heat the water, lifting pressure.

In such a situation you need to reset pressure. With this task copes open expansion tank. When its volume is not enough, the water is displayed in the sewer along the pipe installed between the tank and the sewage system. Such a tank allows you to enter the air to the coolant. It is bad for the inner elements of the gas boiler, pipes and. Solving problems:

1. The combination of a closed and open heating system by using a heat accumulator.
2. Organization of a closed system for a woodwood or pellet boiler using a special security group. In this case, the two units are connected in parallel and operate both in pairs and separately.

See also: Advantages of the Popov boiler

Topboard with heat accumulator

The idea of \u200b\u200busing the heat accumulator is to such nuances:

1. Gas boiler receiving gas from a cylinder and heating devices form one closed system. It includes a heat accumulator.
2. Gas-generating boilers on firewood, coal or peellet are also connected to the heat accumulator. But the water heated with them gives the heat to the heat accumulator, and then it is transmitted to the coolant, which circulates along the closed system.

To make your own hands such a strapping need to have:

1. Open expansion tank.
2. The hose that will be between the tank and the sewer.
3. Cutting cranes (13 pcs).
4. Circulation pump (2 pcs).
5. Three-way valve.
6. Filter for water purification.
7. Pipes made of steel or polypropylene.

The scheme can operate in four modes:

1. From a wood boiler with the transfer of degrees through the heatacumulator.
2. From the same boiler by walking the heat accumulator (the gas device will be disabled).
3. From a gas boiler that can receive gas from a cylinder.
4. From both boilers.

Organization of the open system with the heat accumulator

1. Installation with your own hands on two fittings of the wood cutting boiler.
2. Connecting the expansion tank. It needs to be placed so that it is above all the elements of the strapping. Pressure under which a solid fuel boiler gives water often exceeds the pressure under which the coolant from the gas boiler connected to the cylinder is supplied. To align these values, you need to properly configure the open expansion tank.
3. Installation of cranes on the pipes of the heataccumulator.
4. Connection and boiler with two pipes.
5. Connecting two tubes to pipes placed between the heat accelerator and the boiler. They are crashed near the cranes that are near the battery fittings, or at a short distance from the shut-off reinforcement. These tubes are mounted with cutting cranes. Thanks to these pipes, you can use a solid fuel boiler bypassing the heat accumulator.
6. Running jumper. It connects the feed and reverse pipes located between the wood boiler for the house and the heat battery. To the supply line, this jumper is fixed by welding or using fittings, and to the reverse - using a three-way valve. A small circle is formed, according to which the coolant will circulate until it is warm up to 60 ° C. After the water will move along a large circle through the heat accumulator.
7. Connecting the filter and pump. Them mounted on the reverse line in place between three-way valve and cap heat exchanger boilerbut. To do this, the P-shaped tube is connected to the line, in the middle of which is a pump with a filter. Before these elements and after them there must be cranes. Such a solution allows you to make the coolant in the absence of electricity.

See also: Solid fuel cast iron boiler

CLOSED SYSTEM WITH THE STEPCUMULT

You do not need to connect a device similar to the expansion tank because the gas boiler connected to the network or cylinder already has a diaphragm expansion tank and also a safety valve.

To make this scheme correctly, you need:

1. Connect to the feed gas device Crane and pipe that will approach radiators of heating.
2. On this pipe, to supply the circulation pump to the heating devices.
3. Connect the heating devices with your own hands.
4. Take the pipe from them, which will come to the boiler. At its end, at a short distance from the gas unit, which is powered by a gas cylinder, you need to put an exfigging crane.
5. Connect two tubes to feed and reverse lines.who will approach u. The first must be connected before the circulation pump, the second - immediately after the radiators. On both pipes put cutting cranes. Two tubes are connected to these pipes, which were embedded in the open system before entering and after exiting the heat accumulator.

Closed system with two boilers

Such a scheme provides for parallel connection of two boilers. Special attention is paid to the Security Group. Instead of an open expansion tank, a closed membrane is installed in a special room.

The security group consists of:

1. Valve for air booming.
2. Safety valve to reduce pressure.
3. Manometer.

The strapping is made according to such a scheme:

1. Installing heat exchanger outputs of both boilers cutting taps.
2. On the feed line, which departs from, install the security group with your own hands. The distance between it and the valve can be small.
3. Connect the feed pipes of both boilers. At the same time before connecting to a line that departs from solid fuel boiler For the home, they cut the jumper (for the organization of a small circle). The scene can be located at a distance of 1-2 m from the boiler. At a short distance from the jumper put a reverse petal valve. If the wood boiler stops working, the pressure coolant created by the gas-operating unit with the unit will not be able to move along the supply line towards the solid fuel device.
4. The feed line is connected to heating radiators located in different rooms And at different distances from each other.
5. Mount the reverse line. It must be between batteries and boilers. In one place it is separated into two pipes. One of them will approach the gas boiler. On it before the aggregate put a reverse spring valve. Another pipe should be approached by a solid fuel boiler. It is connected to the above-mentioned jumper. For connectivity, a three-way valve is used.
6. Before the reverse line branching, it is worth putting a membrane tank and circulation pump.

In order to save, it is often used to connect two boilers into one heating system. By purchasing several heat devices, you should know in advance which methods of their connection between themselves exist.

Since the wood boiler operates in an open system, then combine it with a gas heating device, which has a closed system is not easy. With open-type strapping, water is heated to a temperature of one hundred degrees and above with the highest high pressure indicator. To protect the fluid overheating is an expansion tank.

A part of the hot water is displayed through open-type tacks, which helps to reduce the pressure in the system. But the use of such triggers sometimes becomes the cause of oxygen particles into the coolant.

There are two ways to connect two boilers into one system:

• parallel connection of the gas and solid fuel boiler in conjunction with safety devices;
• the sequential connection of two boilers of different types using the heat accumulator.

With a parallel heating system in large buildings, every boiler warms his half at home. The sequential combination of the gas and wood aggregate form two separate contours, which are combined with the heat acceumulator.

The use of heat accumulator

The heating system with two boilers has such a structure:

• the heat accumulator and gas boiler are combined with heating devices in a closed circuit;
• from the wood heating device, energy flows are received to the heat accumulator, which are transmitted to the closed system.

With the help of the heat accumulator, the system can be operated simultaneously from two boilers or only from the gas and wood heat unit.

Parallel closed scheme

To combine the systems of the wood and gas boiler, devices are used:

• safety valve;
• tank membrane;
• pressure gauge;
• valve for aircraft.

The first affair on the nozzles of the two boilers are mounted with cutting cranes. The valve is safety, an air removal device, as well as a pressure gauge is installed near the wood aggregate.

On the branching from the solid fuel boiler for the functioning of the small circle turnover, the switch is placed. Fix it at a distance of one meter from the wood heating device. A checkpoint is added to the jumper, overlapping the access of water into part of the contour of the spoiled aggregate on solid fuel.

The feed with the reverse is connected to radiators. Reverse coolant stream is separated by two pipes. One joins through three-way crane To the jumper. Before the branching of these pipes, the tank and pump is mounted.

In the parallel heating system, the heataccumulator can be used. The installation diagram of the device with such a connection is to connect to it inverse and feed triggers, feed pipes and repetitions to the heating system. For a joint or separate functioning of boilers, taps overlapping the coolant are put on all system nodes.

You can combine two heating instruments using manual and automatic control.

Manual connection

The on and off of the boilers is carried out by manually due to two cranes on the coolant. The strapping is carried out using shut-off valves.

In both boilers, expansion tanks are installed, which are used simultaneously. Experts recommend completely not to cut off boilers from the system, and simply simultaneously connect them to the expansion tank, overlapping along the water movement.

Connection with automatic control

A check valve is installed for automatic adjustment of the two boilers. It protects the heating unit from malicious streams. Otherwise, the method of turnover of the coolant in the system does not differ from manual control.

IN automatic system All major lines should not be blocked. The pump of the working boiler drives the coolant through non-working unit. Water moves along a small circle from the place of connecting the boilers to the heating system through the non-working boiler.

In order not to spend most of the coolant for an unused boiler, check valves are installed. Their work should be directed to each other so that water from two thermal equipment is directed to the heating system. Valves can be put on the feedback. Also, with automatic control, a thermostat is required to adjust the pump.

Automatic and manual control used when combined different types Heating devices:

• gas and solid fuel;
• electric and wood;
• gas and electric.

You can also connect two gas or electric boilers into one heating system. Installation of more than two connected thermal units leads to a decrease in system efficiency. Therefore, more than three boilers do not connect.

The advantages of the system with two boilers

The main positive point of the installation of two boilers in one heating system is uninterrupted heat support in the room. The gas boiler is convenient because it does not need to be constantly serving. But in case of its emergency disconnection or in order to save a wood-saving boiler will become an indispensable heating supplement.

The heating system from two boilers can significantly increase the level of comfort. The advantages of the double heat device belong:

• selection of the main type of fuel;
• the ability to control the entire heating system;
• increase operational equipment time.

Connecting into one heating system of two boilers is the best solution for heating buildings of any size. Such a decision will allow to continuously maintain heat in the house for many years.

Modernization of the heating system in a private house may require two boiler at once, connecting them into a common network. What sequence must be held at the same time? How to connect two boilers into one system, which must be taken into account if there is a need to share a gas with a solid fuel, electric boiler or heating equipment operating on liquid fuel.

How to connect two boilers together?

Immediately I want to clarify that simply connect two boilers on different types of fuel into one system is one of the possible solutions to the problem of lack of power of installed equipment. It is also possible to connect to one network more than two models.

For what purposes may be needed to connect two boilers in one system? There are several significant reasons for explaining the feasibility of this.

1. Lack of power. Incorrect equipment calculation or additionally attached living space can lead to the fact that the boiler power can simply be not enough to maintain the normal coolant temperature.
2. Increase functionality. Connect two boilers into one system may be needed to, for example, increase the battery life of the equipment. For example, if a solid fuel boiler is the main source of heat, then it is necessary to constantly put firewood for its operation, which is not always convenient, and even more practical.
   After installing an electrocotel or gas heater after it, this situation can be solved as follows. As soon as the firewood or coal burned, and the coolant began to cool, additional heating equipment is included in the process and continues to pump the room, until in the morning the host does not throw a new batch of firewood.

As it can be seen to connect two heating boilers on different types of fuel, it is practical, moreover may be due to acute necessityassociated with disadvantage of equipment performance.

How to connect two gas boiler in parallel

There are two schemes for connecting gas and any other water heating equipment. You can connect two boilers to one heating system:

• Seriously - in this case, one unit will be installed after another. The load in this case will be unevenly distributed, since the main boiler will constantly work in full power, which can lead to its rapid failure.
• Parallel. In this case, the heated area will be conditionally divided into two parts. Heating will be carried out at once with two installed boilers. The parallel connection of the two boilers on gas is usually used in cottage houses and buildings with a big heated area.

For a parallel connection, the controller is mandatory and also develop a cascade control circuit. Answer the question how to connect two gas boilers can only a competent specialist in each case.

How to connect two boilers - gas and solid fuel?

Combining into one system of gas and solid fuel boilers is a simpler task, to fulfill which it is necessary to take into account the main features distinguishing the operation of these two types of equipment.

Models of gas and solid fuel equipment can be installed in one network sequentially. In this case, TT boilers will play the role of the main source of heat supply.

The principle of their work will be to ensure that gas equipment It will be turned on on heating only if the operation of the main node for which reasons will become impossible. Also, usually the gas boiler assigns the task of heating water, of course if such a function is provided. During the design of such a system, these features must be taken into account.

It will also be necessary to coordinate the selected scheme in the gas economy and get all the necessary permissions there, including the technical conditions and the connection project.

How to combine gas and liquid fuel boilers

For security reasons for such a connection, it is necessary to create conditions under which it is possible to safely work two types of equipment at once. To do this, do the following:

• Installation of a general system of control over the operation of water equipment. The sharing of a liquid fuel and gas boiler implies the installation of a common automation. It in turn is connected to controlling sensors that give a signal to switch on in case of termination of the main source of heat.
• Install regulating valves. Cutting cranes operating automatically can be used.

Connection is performed by a sequential or parallel method depending on the needs of the customer. The plan and the principal scheme are in the design department, after which it is coordinated in the gas economy service.

Advantages of installing multiple boilers in one network

Connect two boilers at the same time: the floor and wall boilers may be needed if the area of \u200b\u200bthe room as a result construction work, sharply increased. Even if initially the equipment was acquired with a power reserve, it may not be enough for heating additional rooms large square. In this case, an additional boiler is installed associated with the overall heating system. The advantage of such a solution is:

1. The possibility of simultaneous control over the operation of all equipment.
2. Savings by choosing the main type of fuel.
3. The possibility of longer operation of equipment.

Practice shows that simultaneous installation of two or more boilers can be possible. With each additional element, overall performance and efficiency drops significantly. Therefore, the feasibility of the simultaneous installation of four or more, the units of water heating technology is completely absent.

Creating a heating circuit, in which two boilers in the heating system work both in one and together, is associated with the desire to ensure redundancy or reduce heating costs. The collaboration of boilers in the unified system has a number of connectivity features that should be considered.

Possible options - two boilers in one heating system:

• gas and electricity;
• solid fuel and electricity;
• solid fuel and gas.

Gas and Electrocotel joint work

Combining in one contour of the gas boiler with an electrocottal, as a result of which the heating system is created with two boilers, it can be implemented simply enough. Perhaps both serial and parallel inclusion. In this case, the parallel connection is preferable, because You can leave one boiler working, and another to stop completely, disconnect or replace. Such a system can be completely closed, and ethylene glycol for heating systems or ordinary water can be applied as a coolant.

Collaboration of the gas and solid fuel boiler

This is the most difficult version for technical embodiment. In a solid fuel boiler, it is extremely difficult to control the heating of the coolant. Typically, such boilers operate in open systems, and overheating in the contour during overheating is compensated in the expansion tank. Therefore, it is impossible to directly connect a solid fuel boiler to the closed circuit.

For the collaboration of the gas and solid fuel boiler, a multi-mounted heating system has been developed, which is two independent contours.

The contour of the gas boiler works on the heating batteries and on a common heat exchanger with a boiler on solid fuel and with an open expansion tank. For the room in which both boiler are installed, the requirements are required for both gas and solid fuel boilers.

Joint work of solid fuel and electricotel

For such a heating system, the principle of operation depends on the type of electric boiler. If it is intended for open heating systems, it can be easily connected to a valid open circuit. If the electric boiler is intended only for closed systems, then the best option will be a joint work on a common heat exchanger.

To increase the reliability of heating and to eliminate interruptions in the operation of the heating system, the heating boilers are two-fuel, operating on different types of fuel. Combined boilers are manufactured only in the outdoor performance due to a sufficiently large weight of the aggregate. The universal unit can have one or two combustion chambers and one heat exchanger (boiler).

The most popular scheme is the use of gas and firewood for heating the coolant. It should be borne in mind that solid fuel boilers Can only work in open heating systems. To implement the advantages of a closed system in a universal boiler tank, an additional circuit is sometimes installed for the heating system.

There are several types of two-fuel combined boilers:

1. gAZ + liquid fuel;
2. gas + solid fuel;
3. solid fuel + electricity.

One of the popular combined boilers is a solid fuel boiler with an installed electric heater. This unit allows you to stabilize the room temperature. Such a combined boiler thanks to the use of Tanov acquired a lot of positive qualities. Consider how the heating system works in such a combination.

When igniting fuel in the boiler and when connecting the boiler to electrical network Immediately begin to work by the Tan, which heat the water. As soon as the solid fuel flares, the coolant is quickly heated and reaches the temperature of the thermostat, which turns off the electrical heaters.

The combined boiler works only on solid fuel. After burning fuel, water begins to cool in the heating circuit. As soon as its temperature reaches the threshold of the thermostat, it will turn on the beans again to heat the water. Such a cyclic process will allow you to maintain a uniform temperature in the rooms.

To optimize heating contours, heat accumulators in heating systems were invented, which are a container of a large volume of 1.5 to 2.0 m3. During the operation of the boiler, the large amount of water is heated from the contour pipes passing through the battery capacity, and after stopping the operation of the boiler, the heated water slowly gives thermal energy in the heating system.

Heat batteries allow you to maintain a comfortable temperature for quite a long time.

To avoid critical situations in winter, reduce heating costs and ensure its reliability, many owners prefer either installation of a system with two boilers on different fuel, or establish a universal two-fuel boiler. These heating options have certain advantages and disadvantages, but their main task is a stable and comfortable heating - they are fully ensured.

spetSotoplenie.ru.

What is the connection of a solid fuel and gas boiler in one system

Connecting a solid fuel and gas boiler into one system solves for the owner the issue with fuel. The boiler on one fuel is inconvenient because if the reserves are not replenished in a timely manner, you can stay without heating. Combined road boilers, and if such an aggregate will be seriously broken, all the heating options provided in it will become unfulfilled.

Perhaps you already have a solid fuel boiler, but you want to go to another, more convenient to use. Or the existing boiler is not enough power, one more is needed. In any of these cases, the solid fuel and gas boiler can be connected to one system.

Features of connecting two boilers

The connection of two boilers in one heating system creates difficulty in combating them: gas units are operated in a closed system, solid fuel - in open. The open strapping of TD boiler allows water to heat to a temperature of over 100 degrees, with a critical pressure of the pressure (which is a solid fuel strapping).

To reset the pressure, such a boiler is equipped with an expansion tank of an open type, and with elevated temperatures cope, descending from this tank part of the hot heat carrier in the sewer. When using an open tank, the system is inevitable, free oxygen in the coolant leads to corrosion of metal parts.

Two boilers in the same system - how to connect them correctly?

There are two options:

• sequential diagram of connecting two boilers in one heating system: a combination of an open (TD boiler) and a closed (gas) system sector using a heat accumulator;
• installing a solid fuel boiler in parallel with gas, with safety devices.

A parallel heating system with two boilers, gas and wood-haired, optimal, for example, for a cottage with a large area: Each unit is responsible for its half at home.

In this case, the controller and the possibility of cascade control is required. With a sequential scheme of connecting gas and solid fuel boilers in one system, as it were, as it were, the two independent contour connected by the heat accumulator (which is a heat acceumant for heating boilers).

Use of heat accumulator

The scheme of connecting the gas and solid fuel boiler in one system looks like this: the gas boiler, the heatacumulator and the heating devices are combined into a common closed circuit, and the solid fuel unit transmits all the energy of the heat accumulator from which the coolant is already entered into the closed system.

Such a network can function in several modes:

• from two boilers at the same time;
• only from gas;
• only from solid fuel through the heatacumulator;
• from solid fuel, bypassing the heat acupuncture, when the gas boiler is disconnected.

How to connect two boilers in one heating system according to this scheme. Cutting cranes are mounted on pipe boiler nozzles. An open expansion tank is installed at the highest point of this circuit, connected with the feeding nozzle of the boiler. Next, the taps are embedded on the feed / return pipe of the heat accumulator and combine it with pipes with the rest of the contour.

In order for the boiler to be used without a heat accumulator, two tubes are cut near the latter locking reinforcement and the cranes are installed on them. The feed and inverse pipes are connected by bypass: to the feed jumper fix fitting or welding, to the reverse - through a three-way crane.

Between the three-way and boiler in the contour, the circulation pump with a filter is embedded. It is recommended to make a bypass on this site too, around the pump: if the electricity is turned off, the coolant will be able to move due to the natural circulation.

Installation of the "gas" circuit is performed as in a conventional scheme with a heat accumulator. The expansion tank with a safety valve is usually already included in the design of the boiler. A tube that leads to heating devices is connected to the supply nozzle through the cutting valve. The reverse is also connected to the boiler through the cutting faucet. Pump is installed on the inverse tube.

On both pipes to the heataccumulator, jumpers are fed: one - in front of the circulation pump, the second - before heating devices. In the same place, the tubes are connected, which were installed in the first circuit (for the movement of the coolant from TD boiler without a heat accumulator). All new connections are equipped with cranes for flux overlapping.

How to connect a solid fuel boiler with gas?

See also: How to make a warm floor of water from the gas boiler in the house

In this case, a closed membrane tank and safety devices are used:

• valve aircraft;
• safety valve (for pressure normalization);
• manometer.

Installation begins with the installation of cutting cranes for feed / reverse nozzles of both units. At the supply of a TD-boiler at a short distance, a security group is installed.

When connecting a solid fuel boiler and a gas in one system on a branch from a TD-unit, 1-2 meters from it are adjusted to the jumper for the device of a small circulation circle. The jumper is equipped with a check valve so that the water does not fall into the "wood" part of the contour in case of disconnecting the solid fuel boiler.

Conduct to radiators feed and reverse. The reverse is branched on two pipes: one goes to the gas boiler, the second is connected to the jumper through a three-way crane. The closed membrane tank and the filter pump is installed before this branching.

The parallel diagram also does not exclude the use of the heat accumulator: the feed and inverse pipes from both aggregates are supplied to it, the direct and return highway to heating devices goes from it. All system nodes are equipped with cranes for overlapping the stream so that boilers can be used both together and separately.

This is the answer to the question, how to connect solid fuel and gas boilers In one system, if not only heating is required, but also DHW: the acquisition of a two-kilt boiler, when one is already there is irrational (description of the principle of operation of the two-circuit gas boiler heating). It is better to use the second one-connecting (what is wall-mounted single-mounted gas boilers heating) and buffer container.

Video on how to connect solid fuel and gas boilers into one heating system.

ks5.ru.

Connection diagram of solid fuel and gas boiler in one system

A good option is the combined boilers heating firewood or two boilers, one of which works on solid fuel, and the other on gas.

Any of these two options makes it possible to get warm in the case when there are no firewood in the furnace, and there is still gas in the cylinder. It is better to combine two different boilers because the network will work constantly, even if one of the devices break. If the gas-firewood device breaks, the system stops working and it will be cold in the room.

The difficulties of using two boilers in one system

The main difficulty lies in the fact that gas boilers for a private house should work in a closed system, and the most secure for solid fuel devices is open. The open type of open type is claimed because the boiler can heat the water to 110 ° C and more by lifting pressure above the permissible limits.

It can be reduced by reducing the intensity of burning. But the effect will be visible when the coals are completely burned. Even with weak burning, they are very hot and continue to heat the water, lifting pressure.

In such a situation you need to reset pressure. With this task, an open-type expansion tank is coping. When its volume is not enough, the water is displayed in the sewer along the pipe installed between the tank and the sewage system. Such a tank allows you to enter the air to the coolant. It is bad for the internal elements of the gas boiler, pipes and radiators of the heating system. Solving problems:

1. The combination of a closed and open heating system by using a heat accumulator.
2. Organization of a closed system for a woodwood or pellet boiler using a special security group. In this case, the two units are connected in parallel and operate both in pairs and separately.

Topboard with heat accumulator

The idea of \u200b\u200busing the heat accumulator is to such nuances:

1. Gas boiler receiving gas from a cylinder and heating devices form one closed system. It includes a heat accumulator.
2. Gas-generating boilers on firewood, coal or peellet are also connected to the heat accumulator. But the water heated with them gives the heat to the heat accumulator, and then it is transmitted to the coolant, which circulates along the closed system.

To make your own hands such a strapping need to have:

1. Open expansion tank.
2. The hose that will be between the tank and the sewer.
3. Cutting cranes (13 pcs).
4. Circulation pump (2 pcs).
5. Three-way valve.
6. Filter for water purification.
7. Pipes made of steel or polypropylene.

The scheme can operate in four modes:

1. From a wood boiler with the transfer of degrees through the heatacumulator.
2. From the same boiler by walking the heat accumulator (the gas device will be disabled).
3. From a gas boiler that can receive gas from a cylinder.
4. From both boilers.

Organization of the open system with the heat accumulator

1. Installation with your own hands on two fittings of the wood cutting boiler.
2. Connecting the expansion tank. It needs to be placed so that it is above all the elements of the strapping. Pressure under which a solid fuel boiler gives water often exceeds the pressure under which the coolant from the gas boiler connected to the cylinder is supplied. To align these values, you need to properly configure the open expansion tank.
3. Installation of cranes on the pipes of the heataccumulator.
4. Connection of the heat accumulator and boiler with two pipes.
5. Connecting two tubes to pipes placed between the heat accelerator and the boiler. They are crashed near the cranes that are near the battery fittings, or at a short distance from the shut-off reinforcement. These tubes are mounted with cutting cranes. Thanks to these pipes, you can use a solid fuel boiler bypassing the heat accumulator.
6. Running jumper. It connects the feed and reverse pipes located between the wood boiler for the house and the heat battery. To the supply line, this jumper is fixed by welding or using fittings, and to the reverse - using a three-way valve. A small circle is formed, according to which the coolant will circulate until it is warm up to 60 ° C. After the water will move along a large circle through the heat accumulator.
7. Connecting the filter and pump. They are mounted on the reverse line in the place between the three-way valve and the heat exchanger pipe of the boiler. To do this, the P-shaped tube is connected to the line, in the middle of which is a pump with a filter. Before these elements and after them there must be cranes. Such a solution allows you to make bypass by which the coolant will move in the absence of electricity.

CLOSED SYSTEM WITH THE STEPCUMULT

You do not need to connect a device similar to the expansion tank because the gas boiler connected to the network or cylinder already has a diaphragm expansion tank and also a safety valve.

To make this scheme correctly, you need:

1. Connect to the feed fitting of the gas device a crane and a pipe that will approach the heating radiators.
2. On this pipe, to supply the circulation pump to the heating devices.
3. Connect the heating devices with your own hands.
4. Take the pipe from them, which will come to the boiler. At its end, at a short distance from the gas unit, which is powered by a gas cylinder, you need to put an exfigging crane.
5. To connect two tubes to the feed and reverse lines, which will approach the heat accumulator. The first must be connected before the circulation pump, the second - immediately after the radiators. On both pipes put cutting cranes. Two tubes are connected to these pipes, which were embedded in the open system before entering and after exiting the heat accumulator.

Closed system with two boilers

Such a scheme provides parallel connecting two boilers. Special attention is paid to the Security Group. Instead of an open expansion tank, a closed membrane is installed in a special room.

The security group consists of:

1. Valve for air booming.
2. Safety valve to reduce pressure.
3. Manometer.

The strapping is made according to such a scheme:

1. Installing heat exchanger outputs of both boilers cutting taps.
2. On the feed line, which departs from the device on solid fuel, install the security group with its own hands. The distance between it and the valve can be small.
3. Connect the feed pipes of both boilers. At the same time, before connecting to a line, which departs from a solid fuel boiler for a home, a jumper is embedded (for the organization of a small circle). The scene can be located at a distance of 1-2 m from the boiler. At a short distance from the jumper put a reverse petal valve. If the wood boiler stops working, the pressure coolant created by the gas-operating unit with the unit will not be able to move along the supply line towards the solid fuel device.
4. The feed line is connected to heating radiators located in different rooms and at different distances from each other.
5. Mount the reverse line. It must be between batteries and boilers. In one place it is separated into two pipes. One of them will approach the gas boiler. On it in front of the aggregate put a reverse spring valve. Another pipe should be approached by a solid fuel boiler. It is connected to the above-mentioned jumper. For connectivity, a three-way valve is used.
6. Before the reverse line branching, it is worth putting a membrane tank and circulation pump.

A similar scheme uses when universal double-circuit combined boilers of heat heating - MAZ. Such aggregates can work on gas from the cylinder. The strapping does not use pipes that are suitable for the gas boiler, and check valves.

poluchi-Teplo.ru.

Connecting two boilers in one heating system - the best option for continuous heating of the house - Stroim24.info

From the author: Hello, dear friends! The home heating system with two boilers is one of the most common situations. Gas and electric boilers provide household comfort and does not require frequent maintenance, and solid propellant helps reduce costs and protect the family budget from unnecessary costs.

How to make the connection of two boilers in one heating system, consistently or in parallel, is there analogs of connecting other types of boilers, and what principle will work? We will try to answer all these questions in today's article.

How to make heating two boilers

Creating a circuit for two heating boilers is associated with an obvious solution to maximize the functionality of diverse species of a private house heating systems. To date, several options are offered:

• gas boiler and electric;
• boiler on solid fuel and electricity;
• solid fuel boiler and gas.

Before you start choosing and installing a new heating system, we recommend reading brief characteristics Work joint boilers.

Connecting electrical and gas boilers

One of the simplest in the operation of heating systems is associated with an union of a gas boiler with electric. There are two connection options: parallel and sequential, but preferable is considered parallel, as you can repair one of the boilers, replacement and shutdown, and also to leave only one in the minimum mode.

Such a connection can be completely closed, and as a coolant apply conventional water or ethylene glycol for heating systems.

Connecting gas and solid fuel boilers

The most difficult version in the technical execution, as it requires careful preparation of the ventilation system and the room for overall and fire-hazardous installations. Before installing, familiarize yourself with the installation rules separately for gas and solid fuel boilers by selecting the best option. In addition, heating the coolant is difficult to control in a solid fuel boiler, and an open system is required to compensate for overheating, in which the excess pressure is reduced in the expansion tank.

Important: A closed system when connecting gas and solid fuel boilers is prohibited and considered to be a serious violation of fire safety.

Optimal indicators The operations of the two boilers can be achieved using a multi-mounted heating system, which represents two contour independent from each other.

Connection of solid fuel and electrocotel

Before connecting, evaluate specifications Selected electric boiler and get acquainted with the instructions. Manufacturers produce models for open and closed heating systems. In the first case the best way - This is an orientation to the work of two boilers for a common heat exchanger, in the second can be easily connected to an already operating open circuit.

Two-fuel heating boilers

In an effort to get high rates of the heating system, avoid stress in the power supply and in the work of the unit, many seek the installation of two-fuel boilers. Despite the large size and solid weight, combined boilers work better through the use different species Fuel I. minimum costs For service.

The scheme at which gas and firewood are used to heat the coolant is considered the most popular and convenient, as it works with an open heating system. If you strive to establish a closed system, then it is recommended to put an additional circuit for the heating system in the universal boiler.

The manufacturers of heating boilers produced several types of two-fuel combined boilers:

• gas with liquid fuel;
• gas with solid fuel;
• solid fuel with electricity.

Solid fuel boiler and electricity

One of the financially based on the price and functionally convenient combined boilers is considered a solid fuel boiler with an electric heater, which allows you to monitor and adjust temperature mode in the House. Thanks to the use of Tann, such boilers have a number of advantages and positive characteristics. Consider in more detail the principle of operation of the system of heating of a combined boiler.

The combined boiler works only on one of the types of solid fuel. Water located in the circuit begins to heat up when combustion of loaded raw materials. As soon as the fuel burned, the thermostat is triggered and the electric heaters are turned off, the water begins to cool. As a result of the decrease in temperature, a TEN is automatically turned on for water heating. The process of heating and cooling is cyclically, therefore a comfortable temperature is constantly maintained in the house.

To optimize the operation of the contours, manufacturers offer to use heat accumulators in heating systems. Externally, they represent a capacity of 1.5 to 2 meters of cubic. Principle of operation: Through the battery capacity of the contour pipes and heated the existing water. After the end of the boiler hot water Slowly gives the thermal energy of the heating system. Thanks to the batteries, a long time is supported by temperature.

Summing up, it can be noted that to reduce costs for heating a private house, ensuring uninterrupted and stable operation of the heating system, the installation of a two-fuel boiler is the optimal and proven option.

Parallel and consistent boiler connection

Planning a heating system of two and three boilers, it is important to take into account the position of the main and connecting elements. And it's not only in the ease of operation and saving space, but also in the ability to repair local areas, preventive work and obtaining technically safe operation of the heating system. Selecting a parallel or sequential connection, the creation of technical schemes make it possible to thoroughly consider all the nuances of installing equipment and additional elements, the length and number of pipes, their gasket and place for the walls of the wall.

Parallel connection

The parallel connection is used to connect gas and solid fuel boilers with a volume of more than 50 liters. Such a choice is justified, above all, saving the coolant and reduced the load on the system.

Tip: Before counting saved finances, it is required to take into account the high cost of such systems and installation, in a complex with an electrocottal, additional equipment on the contour: shock fittings, expansion tank - security group.

Note that the parallel type system can function in two modes: manual and automatic, in contrast to consistent. In order for the system only in manual mode, it is necessary to install lock valves / ball-cranes or the BY-PASS mortise system.

For the organization of automatic operation of an electric with a gas or solid fuel boiler, a servo-cutting of a servo and an additional thermostat will be required, a three-way zone valve to switch the heating circuit from one boiler to another. This option is appropriate with the relation of the overall litter of the coolant system on 1kW of the boiler power.

Sequential connection

The feasibility of serial connection is justified if an expansion tank and a security group are used. With this scenario you can with the smallest difficulties Connect the heating system.

In order to save on components and improve the functionality when connecting an electronic boiler in a steam with solid fuel or gas, it is required to take into account the volume of tank filament. Connection is recommended for up to 50 liters.

Electrocotel can be connected before and after the gas boiler, depending on the convenience and physical possibility of the insertion of the system. It is recommended to perform inserts, taking into account the fact that the circulation pump will be on the "return" both one and the second boiler. If a circulation pump is used in the gas boiler, then optimal option There will be an insert at first an electrocotel, and then gas.

Important: The use of a security group and an expansion tank when connecting the heating system of the gas and electrocotel is the key to the insertion to the active circuit.

Summing up, it can be said that each of the schemes has the right to exist and proved its effectiveness. And yet, on what to stop your choice and how to correctly organize the linking of boilers in a pair: consistently or in parallel? The answer will be different depending on your individual requirements:

• physical options for the installation of two boilers;
• thoughtful ventilation and sewage system;
• the ratio of thermal and energy parameters;
• selection of fuel type;
• the ability to control and prevent the heating system;
• financial component when buying boilers and additional elements.

Requirements for the room with a solid fuel boiler

A number of requirements prescribed in regulatory documents are presented to premises with installed boilers.

Requirements for boiler room:

• the volume of the boiler room depends on the boiler power: for a capacity of up to 30 kW, an area of \u200b\u200b7.5 m2 is required, with a capacity of 60 kW - 13.5 m2, with a capacity of up to 200 kW - 15 m2;
• the boiler with a capacity of more than 30 kW should be in the center of the prepared premises for better air circulation and maximum working efficiency;
• paul, walls, partitions and overlaps in the boiler room must be made from non-combustible and fire-resistant materials using waterproofing coatings;
• the boiler body is installed on a foundation or a special pedestal made of non-combustible materials;
• for boilers with a capacity of less than 30 kW, it is possible to use pedestal from combustible materials, but using steel sheet on it;
• the main stock of fuel should be stored in the next room;
• the daily fuel supply can be stored at a distance of 1 or more meters from the boiler;
• ensuring ventilation.

Requirements for premises with gas boilers

Requirements for boiler rooms with gas apparatus are focused around thoughtful ventilation and boiler power. With a power of less than 30 kW, you can install the heating system in any non-residential room, where the air circulation system is equipped. If you use liquefied gas, then the boiler can take a seat in the basement or basement.

The most difficult with boilers with a capacity of more than 30 kW, they require a separate room with a ceiling height of at least 2.5 m and an area of \u200b\u200b7.5 m2. For kitchen with functioning gas stove The area of \u200b\u200b15 m2 will be required.

Floor Gas Copper Turbated

Connecting solid fuel and one system solves the owner with the issue with fuel. The boiler on one fuel is inconvenient because if the reserves should not be replenished, you can stay without. Combined road boilers, and if such an aggregate will be seriously broken, all the heating options provided in it will become unfulfilled.

Use of heat accumulator

The scheme of connecting the gas and solid fuel boiler in one system looks like this: the gas boiler, the heatacumulator and the heating devices are combined into a common closed circuit, and the solid fuel unit transmits all the energy of the heat accumulator from which the coolant is already entered into the closed system.

Such a network can function in several modes:

• from two boilers at the same time;
• only from gas;
• only from solid fuel through the heatacumulator;
• from solid fuel, bypassing the heat acupuncture, when the gas boiler is disconnected.

How to connect two boilers in one heating system according to this scheme. Cutting cranes are mounted on pipe boiler nozzles. An open expansion tank is installed at the highest point of this circuit, connected with the feeding nozzle of the boiler. Next, the taps are embedded on the feed / return pipe of the heat accumulator and combine it with pipes with the rest of the contour.

In order for the boiler to be used without a heat accumulator, two tubes are cut near the latter locking reinforcement and the cranes are installed on them. The feed and inverse pipes are connected by bypass: to the feed jumper fix fitting or welding, to the reverse - through a three-way crane.

Between the three-way and boiler in the contour, the circulation pump with a filter is embedded. It is recommended to make a bypass on this site too, around the pump: if the electricity is turned off, the coolant will be able to move due to the natural circulation.

Installation of the "gas" circuit is performed as in a conventional scheme with a heat accumulator. The expansion tank with a safety valve is usually already included in the design of the boiler. A tube that leads to heating devices is connected to the supply nozzle through the cutting valve. The reverse is also connected to the boiler through the cutting faucet. Pump is installed on the inverse tube.

On both pipes to the heataccumulator, jumpers are fed: one - in front of the circulation pump, the second - before heating devices. In the same place, the tubes are connected, which were installed in the first circuit (for the movement of the coolant from TD boiler without a heat accumulator). All new connections are equipped with cranes for flux overlapping.

Parallel closed scheme

How to connect a solid fuel boiler with gas?

In this case, a closed membrane tank and safety devices are used:

• valve aircraft;
• safety valve (for pressure normalization);
• manometer.

Installation begins with the installation of cutting cranes for feed / reverse nozzles of both units. At the supply of a TD-boiler at a short distance, a security group is installed.

When connecting a solid fuel boiler and a gas in one system on a branch from a TD-unit, 1-2 meters from it are adjusted to the jumper for the device of a small circulation circle. The jumper is equipped with a check valve so that the water does not fall into the "wood" part of the contour in case of disconnecting the solid fuel boiler.

Conduct to radiators feed and reverse. The reverse is branched on two pipes: one goes to the gas boiler, the second is connected to the jumper through a three-way crane. The closed membrane tank and the filter pump is installed before this branching.

The parallel diagram also does not exclude the use of the heat accumulator: the feed and inverse pipes from both aggregates are supplied to it, the direct and return highway to heating devices goes from it. All system nodes are equipped with cranes for overlapping the stream so that boilers can be used both together and separately.

This is the same answer to the question of how to connect solid fuel and gas boilers into one system, if not only heating is required, but also DHW: the acquisition of a two-circuit boiler when one is already there is irrational (). It is better to use the second one-connecting () and buffer container.

Video on how to connect solid fuel and gas boilers into one heating system.