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Heating pump connection diagrams: installation options and step-by-step instructions. Connecting and installing an additional pump in the heating system Installing an additional pump in the home heating system

If standard heating is not enough, the problem must be solved somehow. You can try installing a second radiator, but a more obvious solution would be to install an electric pump. It is additional and pumps liquid along a small circuit. An additional pump can be installed on the VAZ-2114 stove in 5 minutes. The problem is that the coolant needs to be drained. Otherwise, there will be no difficulties: all parts are standard and are produced by AvtoVAZ itself.

The result of our efforts is what is shown in the video. Let's see.

Everything here is trivial

If we look from under the bottom, we will see two hoses near the partition. We need the one that is fixed closer to the right wheel. And now, instead of hose 19, an assembly is installed: the same hose “21083-8101010-01”, an electric pump, hose “2101-8101204” (to pipe 20). That's all, actually.

Each hose is attached to the nozzles with two clamps. The article number of one clamp is “2108-1300080-10”.

Purchase parts in advance:

  • BOSCH pump 0 392 020 034 or pump 32.3780-01 for Gazelle with 18 mm pipes (important);
  • Electrical parts;
  • All hoses and clamps;
  • The BOSCH pump requires VAZ fasteners: a intake pipe clamp, as well as a bracket for this clamp (all from LADA-2101).

The pump from the Gazelle will have to be modified: the body is disassembled, degreased, the rubber gasket is lubricated with sealant...

GAZ pump after modification

When assembling, use screws with nuts instead of standard self-tapping screws (see photo).

By installing an additional pump on the VAZ-2114, you don’t even have to connect it. Everything will work as before. The main thing is that the pump does not leak, and we have already indicated the solution.

Approximate procedure for installing an additional pump

If all the necessary parts have been purchased, do the following:

  1. A “unit” consisting of three parts is assembled. The short hose is the “outlet”. Below is an example with a BOSCH pump.

    Antifreeze drainage unit

  2. They stop the car with the handbrake, turn off the battery and antifreeze. Near the bottom, two heater hoses are found and one of them is removed.

    External outlet hose

  3. Instead of a standard outlet hose, a “knot” is installed.
  4. The pump itself, that is, the pump, is attached to the manual transmission housing (see photo). We use a screw that presses the “ground cord”.

    BOSCH pump mounting method

  5. If the system is filled with antifreeze, the car can be used.

Be aware that a plug from (you need to buy) will fit into the pump connector. The connection diagram is discussed below.

Example with a GAZ pump

Clarifications for the domestic pump:


Variant of the scheme for the VAZ-2114

We connect the motor through a fuse and a relay rated at 10 Amps. The relay will be turned on by a button attached to the device.

Scheme (simple version)

The “+” voltage was taken directly from the battery, but this can be done - a sealed holder “hangs” on the wire, where the fuse (5A) is located. Installing a button looks simple:

  1. Remove all the handles;
  2. Move the plastic panel towards you;
  3. We install a new button and connect the wires.

As a result, you can see what is shown in the photo.

Circulation button

What can be improved


Video with installation example

Installing an additional pump in the heating system is the best solution if there are problems with heating your home. Installing this device can help to evenly distribute the coolant in the radiators.

The circulation pump can be installed for heating boilers operating on a wide variety of fuels - processed oil, coal, gas, diesel fuel, firewood, electricity.

    Show all

    Main advantages

    When deciding whether an additional pump is needed for a wall-mounted boiler or floor heating equipment, it should be noted that installing it provides many advantages. Main advantages:

    1. 1. The overall efficiency of the heating system increases. This affects both the uniform distribution of the coolant and the temperature regime in all rooms.
    2. 2. Indoor air heats up much faster.
    3. 3. The circulation of coolant inside the main line improves.

    If you connect an additional pump to a double-circuit boiler, this will prevent the formation of an air lock in one of the lines where the coolant circulates. Most often, owners of apartments on the upper floors suffer from this.

    Important The advantage of the pump is also its efficiency. As practice has shown, at the same time 2 devices (main and additional) consume less electricity.

    In addition, if several pumps are running in the heating system, it becomes possible to install useful devices such as thermostats and heated towel rails. The owner of the house can also install pipes of a smaller cross-section - the quality of heating of the premises will not suffer from this. Another advantage is the low cost of this device.

    An additional pump costs approximately 6-15 thousand rubles. These are not very high costs, considering that money can be collected for the unit from everyone living in the house.

    Basic selection options

    To correctly install a circulation pump in a heating system, you need to take into account a number of basic parameters. The main characteristics when choosing equipment are:

    Taking into account the fact that pumps are not designed to lift liquid, but only to circulate coolant, the main attention when choosing equipment should be focused on the “Q” indicator.

    If the house has 2 or more floors, the main condition for water rising to the top is not pressure, but the absence of air in the central pipeline and sufficient circulation, which can ensure the rise of the coolant.

    To find out the required flow rate, you can use the following formula Q=N/(t2-t1), where:

    Such calculations can only apply in cases where the boiler does not have a circulation pump. Today, boiler equipment is usually manufactured with a built-in pumping device. When purchasing a modern boiler, there is usually no need to select an additional pump.

    But if the boiler has been in place for a long time, and the main heating line needed to be extended due to an additional extension, or the calculations were simply made incorrectly when purchasing a new boiler, then purchasing a second pump is a necessity.

    Pump. Feed or return? Where to put it correctly. Answers on questions

    Specifications

    There is no need to choose a very expensive device. One way or another, the devices will not use their full potential. In addition, the installed equipment is characterized by strong noise. As a rule, the length of the pipeline determines the power indicator of the pumping device: for every 10 m of pipeline, the pump must create 0.5 m 3 of pressure.

    As practice has shown, for a circuit of 100 meters it is enough if the pumping equipment produces a pressure of 5 m 3. When purchasing an additional device for pumping liquid, you must not forget that the pump’s performance must be 15% greater, in contrast to the originally calculated figure.

    Types of equipment

    For normal coolant circulation, it is advisable to choose “dry” or “wet” pumps. In the latter case, the rotor is located inside the coolant, that is, it pumps liquid, being located directly in it. During circulation, the water cools the electric motor. To connect electricity, a stator must be installed. Wet type pumps have a large number of advantages:

    Among the disadvantages are the limited scope of application, not very high efficiency, it is not possible to use pumps for drinking water and other devices related to food.

    In the design of “dry” pumps, the rotor is located outside the coolant. This equipment uses a seal designed to separate the electric motor and the pump itself. The approximate efficiency of the device is 80%, so such devices are used in cases where it is necessary to periodically pump a significant volume of water. These devices are most often used in industrial plants and large department stores.

    Installing an additional pump.mp4

    Preparatory activities

    Before you begin installing the pump, you must carefully familiarize yourself with the stages of work. At the initial stage you need to prepare for installation. For this you will need to purchase a coarse filter and detachable threads. Before installing the pump, it is necessary to prepare a check valve, which will normalize the operation of the heating system. For installation you may also need:

    It is necessary to first determine the installation location. Modern pumping equipment can be installed not only on the coolant supply pipeline, but also on the return pipe. If it has been decided to install the unit on a part of the pipeline between the forward and return pipes, then you need to make sure that the device is able to withstand strong pressure of hot water. We must also not forget that in houses where “warm floors” are installed in the premises, the injection device is installed in the hot coolant supply area. This way you can prevent air from entering the pipeline.

    If an expansion tank is available, then a pump with a bypass is installed in the return pipe section, closer to the expander.

    Hydraulic separator

    If there is a need to install an additional pump, then another device must be included in this heating system - a hydraulic separator. In construction terminology, a hydraulic separator is also called a hydraulic separator or anuloid.

    This equipment is recommended for use in heating systems where the heating medium is heated using long-burning boilers. It’s just that this heating equipment can operate in several modes (fuel ignition, combustion procedure and attenuation process), and each phase requires its own combustion mode.

    Using a hydraulic arrow in a heating system will make it possible to create a certain balance in heating the system and generating heat.

    The hydraulic separator itself is made in the form of a tube with four outlet pipes. To the main tasks of this device applies:

    1. 1. Collecting sludge particles (used as a dirt trap).
    2. 2. Automatic removal of accumulated air.

    Anuloid is an important device in the heating system, therefore, if you have a pump, it must be installed.

    Heating in a house is assigned a large number of functions that must be performed regardless of the flow of coolant with possible pressure drops in the main line. It is very difficult to achieve normal operation of the heating system, since water enters the pipe circuits from one heat source - the boiler, which ultimately leads to unbalanced heating. To prevent these situations, a hydraulic arrow is required, which serves as a decoupler.

    Installation instructions

    The installation of an additional pump does not depend in any way on the material and type of heating system. One way or another, the installation will need to be done using a bypass method. If there are metal pipes in the building, then it is possible to purchase a ready-made structure that allows you to bypass the main pipeline. Before installation, you need to completely drain the coolant and clean the pipe, for which the main line must be flushed several times. Then a piece of pipe is inserted, which is curved in the shape of the letter “P”.

    The pump must be fixed in the center of the pipe. Ball valves are installed on both sides of the equipment. Why are they required? To begin with, the circulation of liquid is normalized by closing one of the taps. Also, if the pump is repaired, you will not need to completely drain the water; you can simply close both valves.

    During installation, you need to pay attention to the direction in which the coolant moves. The direction is indicated directly on the pump with a special arrow. Upon completion of installation, the system is filled with liquid and checked for functionality. If any faults are identified, it is necessary to get rid of them at this stage of work.

    Then, using the central screw, it is necessary to expel the stagnant air from the pipeline. If everything is done correctly, liquid will flow from the hole in the pipeline. To install manually operated equipment, the air must be removed from the pipeline before installation begins. For this purpose, the pump is turned on for 5 minutes, then the valves of the device open. This procedure must be performed several times. When the main line is filled with a sufficient volume of water, the pump will turn on independently. Moreover, the presence of air in the pipeline is strictly prohibited.

    Connection features

    When connecting the pump to the electrical network in heating systems with natural circulation, it is necessary to use an automatic fuse with a flag, which will simultaneously act as both a switch and a fuse. The automatic fuse must be installed at a distance of at least half a meter from boiler equipment and heating devices.

    To connect a pump to a network with forced circulation, it is necessary to take into account that one is already located and begins to work if the thermal sensor is triggered. For synchronous operation of two devices, the additional one must also be connected to the heat sensor or to the main pump using a parallel connection.

    In heating systems with an electric boiler, the pump can be connected to the boiler itself, then the circulation system will start working only when the coolant is heating.

    Installing a pump in a heating system is a completely feasible task for any home craftsman. Careful study of all stages of installation will make it possible to make the heating system reliable and efficient. Taking into account all the features during this work, you can forget about the problem of uneven distribution of coolant and the appearance of air pockets in the system.

With the onset of winter cold, many motorists are seriously thinking about insulating their car. VAZ family cars are most susceptible to this problem. Their standard heaters do not heat well enough, this is especially noticeable at idle. This problem can be resolved by installing an additional pump. In addition, the interior is insulated through other modifications, for example, by modifying the heater to increase the efficiency of hot air flow from the sides and along the passengers' legs, or by installing an additional heater. In this article we will talk about how to modify the car’s cooling system by installing an additional pump in the cut pipe. For some car owners, finalizing such a plan may be a waste of time, but as an example, we note that such implementations are already successfully used at the factory level by such European automotive giants as Mercedes and BMW.

What additional pumps are there?

As a rule, two different types of pumps are purchased:

A pump for a Gazelle costs an average of 300-500 hryvnia.

Bosch pump, which is three times more expensive than the domestic one, depending on the pump power.

Due to its poor design, the Gazelle begins to leak through the gasket after some time. This problem can be solved by first disassembling the pump and lubricating the gasket with silicone sealant, or by tightly fixing the cover with the gasket with thermal glue or other sealant. The German pump does not have such a drawback due to its design. There are no gaskets and no leaks can occur.

Purpose of an additional pump

Let's imagine that it is 10 degrees below zero outside, and the engine has warmed up to 85 degrees. Now turn off the engine and turn on the heater at first speed. Warm air will blow into the cabin almost immediately, but the flow will be too weak. But as soon as you start the additional pump, hot air will immediately blow in, and its flow will not stop until the temperature of the power unit drops to a temperature of 45 degrees.

We are not pioneers. Additional pumps have been installed on many car models for quite a long time, the responsible owners of which are “at war” with the problems of poor heater performance in the cold season. With this solution, replacing the heater radiator is not necessary at all, especially since this procedure is a very labor-intensive task. On some cars, you will have to remove the entire front panel of the interior.

Tuning a car heating system involves installing an additional electric pump. We will consider this procedure using the example of the VAZ-2110, because it is the owners of these cars who complain that the interior does not heat up well enough, especially when the power unit is idling. To carry out tuning you will need:

1. An electric pump from a Gazelle is precisely this option that is best suited for the role of additionally pumping warm air into the car’s interior. Structurally, this is a conventional centrifugal pump in which the coolant flow is rejected from the center to the periphery using blades.

2. Relay from starter or ignition. In such elements the contacts are best kept open.

3. Short lengths of aluminum and reinforced hoses.

4. Three liters of coolant.

5. Six clamps of the required diameter.

Before starting work, it is necessary to allow the engine to cool naturally. Then drain the coolant into a clean container. You will need it later, so make sure it remains clean.

After this, take the new pump and unscrew the four screws from the side where the impeller is located. Lubricate the rubber gasket with conventional sealant. Next, reassemble the pump in the reverse order, but instead of unscrewing screws, install long thin bolts under the nuts. This is the only way to ensure the best sealing of the connection. At the next stage, you need to determine the installation location of the additional electric pump. There are several options for this:

- on a pin near the battery;

On the washer reservoir mounting stud;

On the mounts there is standard sound insulation, which is located on the engine panel.

As a rule, they follow the standard approach, which is described in the instructions that come with the electric pump, that is, option number two from our list. The pump must be placed in such a way that its horizontal pipe is directed towards the block, for which the metal mounting clamp must be loosened. Next, having installed the pump in the proper position, you need to install the hoses. To do this, they need to be removed from the heater and from the tube coming out from under the manifold. Next, take a reinforced hose of sufficient length and try it on in place. The main thing is that it runs without kinks or stresses from the brass manifold tube to the pump tube.

It is necessary to install an adapter angle to prevent bending, with a small piece of hose of at least 10 cm. The structure is secured with four clamps.

It is much easier to connect the pump and the hose from the stove to each other, since there is no need to install adapters, you just need to stretch the required size hose and connect it, also securing it with the two remaining clamps. In order to secure everything “properly”, it is better to put an aluminum corrugated pipe on the mounted hoses in the area of ​​the exhaust manifold so that the hoses do not melt from the hot air. Finally secure everything and start connecting the electrical connections.

When installing the pump, the ground wire of the winding must be connected to ground. Connect the relay power wire to the pump wiring. Pass the positive one coming from the relay through a fuse connected to the positive terminal of the battery. Stretch the control plus from the relay to the start button directly into the interior along with the battery plus. You can place the button in any place convenient for you.

At the final stage, all that remains is to check the pump in action. Return the coolant to its place, start the power unit and wait a little until it warms up. Then use the displayed button to start the additional pump.

An additional pump in the heating system will be the best way out of a situation where home owners have problems heating their home. Installing the unit will help to evenly distribute heat in the pipeline. The great advantage of the pumps is their versatility, because they can operate not only on coal, but also on diesel fuel, fuel oil, gas, wood and electricity.

What are the advantages of an auxiliary pump?

The use of additional equipment to improve the operation of the heating system provides residents with many benefits. Firstly, the overall efficiency of the system increases. This affects not only the uniformity of heat distribution, but also the temperature in living spaces. Secondly, the air in the rooms warms up much faster. Thirdly, heat circulation inside the main pipeline is improved.

Another advantage of an additional pump is the elimination of the possibility of air accumulation in one of the channels through which heat circulates. Owners of apartments on the upper floors suffer most from this problem, however, if you install an additional unit, it will help create the necessary pressure and supply heat to the entire building. The big advantage of the pump can be confidently considered its efficiency. In practice, it has been proven that together two units (standard and additional) will consume less fuel.

In addition, if the building is provided with heat by a pair of pumps in the system, then residents can install useful devices such as towel dryers and thermostats. The inhabitants of such a building also have the opportunity to use small-diameter pipes - the quality of heating will not deteriorate as a result. Another important advantage is the low price of the equipment. An additional circulation pump can cost from 5 to 20 thousand rubles. This is not too much money, considering that money will be collected for the unit from all residents of the house.

What device parameters should be considered when purchasing?

Before purchasing and installing equipment, it is worth studying its most important parameters. In order not to make a mistake when choosing, familiarize yourself with such characteristics as coolant density, pressure force and water temperature. You will also need to know the diameter of the pipes used to heat the building.

You can find out exactly what characteristics the pump you have chosen has on the packaging, side wall or in the technical data sheet of the unit. Manufacturers designate pressure with the letter “H”. This indicator means the device’s ability to raise water to a certain height. It is measured in meters. The second characteristic is the fluid consumption of the system. It is designated by the letter "Q" and is measured in cubic meters. This parameter is equal to the boiler power and depends mainly on the diameter of the pipeline.

Circulation equipment is not designed to lift fluid. Because of this, when purchasing a unit, special attention should be paid to the “Q” parameter. If the installed boiler is not equipped with a pump, then further liquid consumption will have to be calculated independently. Most modern heating devices already have similar equipment. Installing 2 devices to improve heat circulation is optimal if the house already has a boiler of an older modification, but over time the building was completed and the heating structure increased.

There is no need to purchase very expensive equipment. In any case, the device will not be used to its full potential. In addition, the installed unit has a high noise level. Most often, the length of the pipe determines the power characteristics of the equipment: for every 10 m of pipe, the device must provide 0.5 m of pressure. In practice, a 100-meter ring will work effectively if the pump produces a pressure of 5 m. When buying a unit for a pipeline, do not forget that the power of the device should be 10% more than the figure calculated by the residents.

Types of additional pumps - choosing the appropriate unit

For efficient media circulation, it is best to use “wet” or “dry” pumps. In the first case, the rotor is located inside the coolant, that is, it pumps water while being directly in it. As the fluid circulates, it cools the engine. A stator is used to supply electricity. Wet pumps have many advantages. Firstly, they are able to last for a fairly long period of time. Secondly, such devices do not require frequent maintenance. Thirdly, they make less noise. And fourthly, they are not large in size.

Disadvantages include not very high efficiency, limited scope of use, and the inability to use pumps for drinking water and other food-related devices. Such units are used only in mansions and residential high-rise buildings.

In the design of dry-type pumps, the rotor is located outside the coolant. Such devices use a seal that is designed to separate the motor and the pump itself. The approximate efficiency of the equipment is 75%, which is why these units are used in situations where it is necessary to regularly pump large amounts of water. Such units are used more in manufacturing and shopping centers than in residential buildings.

Preparing to install equipment

Before you begin installing the pump, carefully read the operating algorithm. The first step is to prepare for installation. To do this, purchase split-type threads and a filter for deep cleaning. Also, before installing the equipment, you need to prepare a check valve. It stabilizes the operation of the heating system. To work you will also need:

  • a set of keys;
  • a set of large and small flat screwdrivers;
  • pliers;
  • a pipe whose diameter will be equal to the diameter of the riser;
  • fittings

It is worth deciding in advance on the installation location. Modern units can be installed not only on the water supply pipe, but also on the return pipeline. If you plan to install the device on a section of pipe between the return and direct radiator-type wiring, then before doing so you will need to check the ability of the unit to withstand a powerful pressure of hot liquid. It is also worth remembering that in buildings where the premises are equipped with “warm floors”, the injection device is placed at the hot water supply point. In this way, it will be possible to eliminate airiness in the pipes.

If there is a membrane tank, then the pump with a bypass is mounted on the side of the return pipeline, closer to the expander.

Installation of the unit - algorithm in detail

The installation of an additional circulation pump in a standard heating system does not depend in any way on the type and material of the latter. In any case, installation will have to be done using the bypass method. If the house is equipped with a metal pipeline, then you can purchase a ready-made structure that allows you to bypass the main highway. Before installation, you will need to completely drain the liquid and clean the pipes. To do this, the pipeline must be flushed several times. After this, a piece of pipe bent in the shape of the letter “P” is installed on the side of the main pipe.

Fix the pump in the middle of the pipe. Place ball valves on both sides of the device. What are they needed for? First of all, the water circulation will return to normal if you turn off one of the taps. Secondly, in case of repair of the unit, you will have to drain the water; if there are taps, this will not be necessary. During installation, pay attention to the direction in which the liquid moves. It is marked on the pump body with a special arrow. Upon completion of installation, the system is filled with water and the operation is checked. If any problems are detected, they should be eliminated at this stage of the operation.

Next, using the central screw, we expel the stagnant air from the pipes. If everything is done correctly, water will begin to flow from a separate hole in the pipeline. To install a unit with manual control, the air must be removed from the pipes before installation begins. To do this, the device is turned on for a few minutes, after which the equipment valves open. This procedure should be repeated several times. As soon as the pipeline is filled with a sufficient amount of liquid, the pump itself will start. In this case, the presence of air in the pipes is strictly unacceptable.

Device connection technique – what to connect to what?

Residents of the house will not receive high-quality heating if the pump is not connected correctly. When connecting the device to the power grid of natural circulation systems, an automatic fuse is used. To install the latter, you should choose a place at a distance of at least 70 cm from the main boiler. In forced circulation systems, the pump will start working after the thermal relay is turned on. In order to ensure simultaneous operation of the built-in and additional pump, the second device will need to be connected to a relay or routed in parallel to the first device.

In electric-type boilers, circulation devices should be connected directly to the boiler. In this case, the pump will only operate when the liquid is heated. The cleaning filter must be installed in front of the pump housing. A valve screwed into the upper part of the bypass makes it possible to ventilate the pipeline, removing any air that has accumulated there.

Domestic cars are not very comfortable in Russian winter conditions. And “Gazelle” is no exception to this rule. Drivers mainly complain about interior heating issues. To put it simply, this car is quite cold in winter, and the stove does not create a comfortable temperature in the cabin. In order to solve this problem, there is an additional pump for the Gazelle stove.

Summer is the best time to think about winter

Life goes on as usual. And if it’s still warm outside now, winter will still come sooner or later. Many pages have been written about how to still make the Gazelle warm, but it seems that there is simply no better solution than installing an additional pump.

So, this additional pump is necessary in order to improve the coolant circulation processes in the heating and cooling systems. As for the principles of working with this system, here the additional pump for the Gazelle stove is mounted on a section of the hose to the radiator after the thermostat. This can significantly speed up the speed at which the hot coolant mixture passes through the heater.

What additional pumps are there for the Gazelle?

There are several types of such pumps. This is a pump directly for the Gazelle, which costs about 800 rubles, as well as a pump manufactured by Bosh. The price for such a device is about 2500. The cost depends on the performance of the device. For sale is a domestic and imported additional pump for the Gazelle stove. Kazan, Moscow, Orel, etc. - these spare parts from different manufacturers can be bought in any city.

Disadvantage of the "Gazelevsky" pump

This device has one important drawback. Since its design is not fully thought out, after some time of operation the pump leaks. It leaks through the gasket. This problem can be solved, but it will require dismantling and disassembling the device. Treatment is to lubricate the gaskets with silicone or hot melt adhesive. And then the cover with gaskets is secured.

No such shortcomings were found in pumps from Bosh. This device is designed almost perfectly, and there are no gaskets. There is no leak.

Installing a pump is not a modern innovation

If anyone thinks that the additional heater pump for the Gazelle stove is a new and modern way to solve heating problems in the cabin, then they are deeply mistaken. This method has been successfully used for a long time to warm up Lanos and other cars. This unique solution is good next. In order to be warm in winter, you do not need to change the radiator. In some German-made cars, such a system is generally installed from the factory.

Installation of an additional pump

So, let's see how to install the add-on correctly. pump for the Gazelle stove. Experienced motorists will find this information useless, but for beginners it will be a good instruction for upgrading.

What will be needed for improvement?

Naturally, the pump itself. Let it be a device from Gazelle. It may leak, but it's inexpensive and will do a good job as an extra heat blower. You will also need a relay. An ignition relay is best suited, or you need to select one so that the contacts are better open. In addition, you will need pieces of aluminum reinforced hose, two liters of coolant, and six clamps.

Where is the best place to install?

You can often come across questions about where the heater supply pipe breaks or the outlet pipe breaks? In fact, it doesn’t matter where, as long as it follows the flow of the main coolant flow.

Direct installation

Before starting installation, you need to let the motor cool down. It's better to let it cool naturally. Then you need to drain the coolant into a previously prepared and clean container. It will still be useful, so it is better to make sure that it remains as clean as possible.

Next, take the new additional pump to the Gazelle stove and tighten the screws from the impeller side. The rubber gasket, which you will definitely find there, needs to be coated with a silicone-based sealant to prevent leakage. Then assemble this structure back, but throw away the screws, and instead install thin long bolts under ordinary nuts. This way you can make the connection as tight as possible.

Now let's move on to the next step. It consists of finding the installation location of the device. There are several options. This could be on a stud that is attached to a stud near the battery.

Most car enthusiasts, when they installed an additional pump on their Gazelle stove, used the second method. It is described in the instructions for the pump. That is why the devices should be positioned so that the pump nozzle is directed towards the block. To do this, you need to loosen the iron clamp.

Ready? Then secure the pump and proceed to installing the hoses. To do this, you will need to remove them from the stove and the tube that comes out from under the manifold. Now take a piece of pre-prepared reinforced hose. It should be of such length that it can reach from the brass manifold pipe to the pump without unnecessary kinks.

In order to secure the hose, an adapter is useful. The corner works successfully in this role. You can secure the part to the corner using clamps.

The connection between the pump and the hose from the standard stove is much easier. There is no need to install adapters here. You just need to draw out the required dimensions and then connect it all. It is also secured with clamps. To complete all fastenings completely, you can put a corrugated aluminum pipe on the mounted hoses. This is done to prevent the hoses from melting. Now you can securely fasten everything. Next we will deal with the electrical part.

Electricity

Before connecting an additional pump to the Gazelle stove, the connection diagram should be reviewed for reference. There are several options. One of the simplest ways is to place the button in two positions in the car interior. It's simple here: on/off. For example, it’s cold - you can turn it on, it’s warm - you can turn it off.

This is a simple method, and it has a disadvantage. If you forget to turn off the additional pump, then the next time you start the car to warm up, the pump will start and take heat from the cold engine. This will increase the engine warm-up time.

Professionals recommend using a complex but more effective method. There will be a dual control system. This button is intended only to be turned on in winter and turned off with the arrival of spring. This is done to prevent the pump from working unnecessarily.

When the button is turned on, the additional heater pump for the Gazelle stove will turn on/off completely automatically when the engine starts and the car is driving. For this circuit you will need a two-position relay. The pump has a certain power, so the relay needs a current of 3 A.

Pumps: descriptions and technical specifications

Among domestic manufacturers, we can highlight the products of the Elara company. This company has been producing heater pumps for a long time. Among the products are devices for Gazelles and modifications.

For Gazelles, the company offers a series of devices based on the HO 47.3780 pump. This is a domestic additional pump for the Gazelle stove. Technical characteristics allow it to work effectively in the heating system. The device is powered by 12 V. The operating current required by this pump is 4.2 A. The pump works with antifreeze or antifreeze. The device is connected to the network using a single-wire connector. The size of the pipe here is 20 mm.

You can look at another pump from the same manufacturer. It has a smaller pipe diameter. Here this size is 18 mm.

The additional pump for the Gazelle Business stove differs from the usual one in the presence of two wires instead of one.

Foreign pump

Imported devices have some advantages over domestic ones. One of them is weight. For example, the device from Bosch is lightweight, so it can be freely attached directly to the hoses. The difference in design is that the “Gazelle” pump is stuffing box. At high speeds, it creates increased pressure in the system and leaks. The imported device, on the contrary, has a sealless design, and the electric motor is in no way connected to the pump.

As for performance, it is preferable to purchase an imported additional pump for the Gazelle stove. Its description shows that it is superior in quality and power to its domestic counterpart. Its parameters are the same as in the domestic version. The device is powered by 12 V, and the pipe size is 18 mm.

As for the reviews about the operation of this additional pump, those who upgraded the heating in the Gazelle in this way were satisfied. In the harsh Russian winters, the cabin of the car became warm and cozy.