Webasto air heaters are used for heating passenger car interiors, SUVs, truck cabins, bus interiors and cargo compartments during the cold season. The fuel is gasoline or diesel directly from the vehicle's fuel tank. Depending on the volume of the heated cabin or cargo compartment, Webasto Air Top heaters of various capacities are selected.
Selection by parameters
Webasto Air Top 2000 STC (petrol)
Updated heater model with a power of 2 kW. The novelty is equipped with a low-noise pump and a W-BUS digital interface. The heater is ideal for installation in the interior of petrol SUVs and minibuses.
193 2.0 petrol 12V
Webasto Air Top 2000 STC (diesel)
Updated model of 2 kW air heater for diesel vehicles. Suitable for heating the interior of SUVs, minibuses and truck cabs.
Price with installation:* 34900 rubles.
192 2.0 diesel 12V 24V
*the heater is equipped with a Webasto thermostat, the cost of equipment with installation may vary depending on the brand of car.169 4.0 petrol 12V
Webasto Air Top Evo 40 (diesel)
Diesel heater Webasto Air Top Evo 40 is designed for installation in the cabins of trucks, medium buses, boats and special equipment. The heater power is up to 4 kW.
Price with installation:* 72070 rubles.
155 4.0 diesel 12V 24V
Webasto Air Top Evo 55 (petrol)
Gasoline air heater Webasto Air Top Evo 55 has enough power to heat large rooms. The heater can be used to heat large cargo compartments in commercial vehicles or ships.
170 5.5 gasoline 12V
Webasto Air Top Evo 55 (diesel)
This model is released to replace the well-established Air Top Evo 5500. The novelty has even lower noise levels and higher performance. The power of this air heater in forced mode is up to 5.5 kW.
Price with installation:* 86800 rubles.
156 5.5 diesel 12V 24V
Webasto Air Top 2000 ST (petrol)
Air Top 2000 ST is one of the most popular models among interior heaters for petrol SUVs and minibuses. Thanks to the use of the most modern technologies, the operation of the heater creates almost no noise.
Product
absent
34 2.0 petrol 12V none
Webasto Air Top 2000 ST (diesel)
Diesel air heater Webasto Air Top 2000 ST is ideal for large diesel SUVs and minibuses. Also, this heater can be used to heat the cabins of commercial vehicles in the cold season.
Product
absent
46 2.0 diesel 12V 24V none
Webasto Air Top Evo 3900 (petrol)
The power of the Webasto Air Top Evo 3900 gasoline air heater reaches 3.9 kW per hour, which is already enough to warm up the average size of a bus or the cargo compartment of a small truck.
Product
absent
35 4.0 petrol 12V none
Webasto Air Top Evo 3900 (diesel)
Diesel Webasto Air Top Evo 3900 has almost twice as much power compared to the previous heater model. With a sufficiently low fuel consumption, the air heater produces power up to 3.9 kW.
The interior heater is one of the most important devices in the car during the cold season. The comfort of travel directly depends on it, and even the most severe motorists fix malfunctions of the “stove” in the first place. How does this device work?
There are two types of interior heaters: those powered by the engine cooling system and those operating by burning fuel in a separate device. Gasoline stoves are completely outdated and are no longer used as the main heater. However, they did not disappear completely, but formed the basis of autonomous heaters, which are widely used in freight transport.
Salons of passenger cars are heated exclusively by the engine cooling system. The general principle of operation of such a heater is simple: the coolant takes heat from the engine and, passing through the “stove” radiator, gives it to the passenger compartment. Consider a typical heater in detail.
heater radiator
A radiator is installed inside any car heater. This is a real radiator, very similar to the one installed between the headlights, only small. It also has cooling channels and fins and hot antifreeze or antifreeze circulates through it. The heater radiator is installed in a housing made of heat-resistant plastic.
The flow of hot coolant from the engine passing through the radiator can be regulated by a tap, as was done, for example, on the VAZ classic. The tap regulated the flow, in much the same way as it happens in a conventional home mixer, and, due to this, the air temperature in the cabin was regulated. This is an extremely slow and very inaccurate method. Therefore, in modern heaters there are no taps on the radiator and the coolant circulates inside it constantly.
The temperature of the air from the stove is controlled by an air damper.
air damper
If only a hot radiator was included in the car "stove", there would be little sense from it. Yes, hot air rises, but, in the case of a car, this is clearly not enough. For example, defrosting the windshield would have to wait several hours. To speed up the heating of the passenger compartment, it is necessary that additional air pass through the heater radiator and preferably under pressure.
This air is taken from two places: from the street or from the cabin. Read about air intake from the passenger compartment below in the Air recirculation section, and here we will consider how street air gets into the heater.
In order for air from the street to enter the heater, a special air intake is provided, which in most cars is located in the “wipers” area. Through this channel, air enters the heater housing and ... Then there are two "extreme" options: air either goes through a hot radiator, or bypasses it. It is also possible to mix these options in any proportions. What does it mean?
In front of the radiator, in the air channel, a damper is installed, the position of which determines how much air will go through the radiator, and how much will bypass it. It is due to the position of this damper that the temperature of the air from the stove in modern heaters is regulated. That is, the temperature is determined not by the amount of hot liquid in the radiator, but by the amount of air heated from the passage through the radiator.
Air recirculation
The intake of air from the cabin is called recirculation. This function is available on all modern cars, but is not available on many old Russian models, but in vain. Recirculation is essential when driving through dusty or smoky areas, and also helps to warm up the interior faster.
The meaning of recirculation is that the heater does not take air from the street, but from the passenger compartment through a special, additional channel. An additional damper is installed between the channels, depending on the position of which one of the channels is closed. Thus, when the street channel is blocked, already heated cabin air enters the heater, which helps to create comfortable conditions for people faster.
The recirculation mode is turned on on the dashboard with a button or a slider. In the first case, a rather tricky system works, which includes an electric valve and a vacuum actuator that moves the damper. In the second, everything is simpler - the slider moves the lever and moves the recirculation damper through the flexible rod.
If, when driving fast, street air can enter the heater "by inertia", then when standing, for example, in a traffic jam, this will not happen. It will not get into the “stove” by itself and the air from the passenger compartment with recirculation turned on. For forced air intake and more efficient heating of the passenger compartment, there is a fan in the heater design.
heater fan
There are two types of heater fans in Russian cars: with a real propeller (VAZ "classic") and turbine type. "Propeller" fans have long since become a thing of the past, as weak and unreliable (Read:) and have given way to powerful turbine ones.
A turbine fan is a special wheel with blades of a certain shape, mounted on an electric motor shaft. Rotating, this wheel creates a powerful stream of air going in one direction. In the case of a car heater, this direction is towards the radiator.
The heater fans have several rotation speeds, which are selected by the driver on the “stove” control panel. In the simplest case, the fan speeds are switched by a rotary switch, at least four positions (“off” and three rotational speeds). Although there are quite primitive options with a three-position button without backlight and any amenities.
Fan speeds are generated by resistors. The switch on the dashboard supplies current to the fan motor in such a way that at any speed, except for the maximum, the motor is connected through the appropriate resistor. These simple devices reduce the current passing through them, and the motor shaft rotates more slowly. At the last, maximum, speed, the fan is connected directly (bypassing the resistor block) and, accordingly, rotates and blows at full strength.
Air ducts and air distribution system
Junction box and air ducts of the heater VAZ-2110 In order for the air from the heater to effectively enter the windshield, front door windows, into the area of \u200b\u200bthe legs of the driver and passengers, and even heat the rest of the cabin, it is necessary to bring air as close as possible to these “targets” and evenly distribute it. This is done through an advanced air duct system hidden under the torpedo.
Air ducts are solid or prefabricated plastic pipes that are assembled into a single system. The air that has passed through the hot radiator or bypassed it enters this system and its further movement is determined by the distribution damper or several dampers.
The control of these dampers is located on the dashboard in the form of a rotary switch (or ancient sliders with levers). The dampers can be mechanical (with the help of flexible rods), vacuum (when the dampers are moved by vacuum actuators operating from a vacuum in the engine intake manifold) or electric (with the help of electric motors).
Depending on which mode the driver selects, the flaps assume such a position that the air from the heater goes, for example, only to the windshield or to the windshield and legs, or in some other combination.
Air ducts end with deflectors. These are the same grilles on the dashboard, from where the air blows. Modern deflectors are quite complex and interesting devices. As a rule, each such “lattice” has a whole set of functions: you can change the direction of the air horizontally and vertically, the force of the air pressure, or even completely block the air path by “turning off” the deflector! All this is done with wheels / levers from below or on the sides of the deflector. Accordingly, the direction of the air changes due to the rotary vanes and the change in the position of the deflector itself, and its “turning off” - by closing an individual small damper, which tightly blocks the path of air from the heater to the outlet of the corresponding deflector.
All this together gives the widest possibilities for creating a comfortable microclimate in the cabin.
Climate control and other features
This article discusses the simplest "basic" automobile "stove". This principle is the basis of any heater, but it can be added and complicated by the introduction of additional devices, such as an air conditioner.
In this case, the “stove” is capable of not only heating, but also effectively cooling the interior. And the addition of an electronic component allows you to implement the climate control function. In general terms, climate control is implemented by sensors that determine the temperature in the cabin and send appropriate signals to the electronic unit. Depending on these signals, the unit controls the same shutters itself, using electric drives. And he does it in such a way as to constantly maintain the temperature set by the driver. That is, it is enough for a person to choose the temperature and the blowing mode, and the car will do the rest.
In Russia, only 5% of vehicles have installed autonomous heaters, while in the west almost every car is equipped with an autonomous heater. Note that winters in these countries are not as severe as in Russia. However, people still care not only about their car, but also about their health.
Of course, when you are on the road, warm air enters the car interior, but if you stop for a long time, turning off the engine, it becomes cold in the cabin. High fuel consumption at idle and significant engine wear - all this once again reminds you of the need to install an autonomous car heater.
Few motorists know that car heaters effectively combat the reduction in engine life that occurs during a “cold start”. In addition, a comfortable temperature is always maintained in the cabin, the car starts without problems, and the windshield is not covered with frost, which is then difficult to clean off.
So, first you need to understand the types of autonomous heaters in order to choose the most suitable one, because every detail is of particular importance here: engine design, frequency, place and duration of parking, car operation mode, etc.
Heaters according to the type of the heated medium are of two types: liquid and air. And they are also divided into autonomous (diesel, gasoline) and non-autonomous (from a 220 V network).
- liquid
Used to heat the interior and engine. The Webasto heater is installed directly into the cooling circuit next to the engine, which allows you to effectively warm up the engine and interior. At the same time, warm air enters through the standard air ducts of the vehicle, so that the optimum temperature is always maintained in the cabin.
- Air
Designed exclusively for warming up the car interior, drivers sometimes call it simply - a hair dryer. Operated mainly on trucks and minibuses. The installation guarantees comfortable warmth in the cabin. Also, the equipment is characterized by low noise level and low current consumption. When installing the Planar heater on a Gazelle or any other commercial vehicle, it is possible to pre-program the start time of the heater or control it by phone (the timer and GSM modem are not included).
However, do not forget about the economic benefits when installing an autonomous heater. You yourself know that the price of fuel rises regularly, and if the driver needs to warm up, he will have to keep the car idling for a long time, and this is quite expensive.
We offer you the installation of autonomous heaters from reliable manufacturers of well-known German brands: Webasto, Eberspacher. As well as Russian: Planar, Pramotronik, Binar.
All cars of the Classic family from AvtoVAZ were equipped with a ventilation and interior heating system. In many ways, they were similar in design and simple, since they did not use today's air conditioners. And although it is impossible to wait for coolness in the Classics salon in the summer, the heating system will not let you freeze in winter.
The heating system of the VAZ 2104, like the rest of the models of the family, was produced from a liquid cooling system of the power plant. To be clear, this system includes two radiators in which heat is removed from the coolant passing through them.
But one of the radiators is the main one, it regulates the temperature of the liquid, so the heat from it is removed to the environment so that the heat exchange is carried out efficiently. It is installed in front of the car, under the grille.
The second radiator - provides interior heating. It also produces heat exchange with heat transfer to the air, but this air is supplied to the passenger compartment, and this ensures its heating.
But this radiator is small in size, therefore, for effective heating of the cabin, a whole system is used that provides forced air supply to the radiator, the removal of already heated air to a certain area of \u200b\u200bthe cabin, while it is possible to shut off the supply of heated fluid to the radiator of the stove VAZ-2104. After closing, the system can continue to work, providing cold air to the passenger compartment - this is provided by the cabin ventilation system in summer.
The design of the heating and ventilation system
For clarity, a diagram of the VAZ-2104 stove is provided
So under position 1 there is a resistor for changing the fan speed. The base of the stove consists of a fan housing 2 and blower fan guide 3 . They are connected to the upper part of the body with brackets. 4 . The top of the case is the radiator shroud 5 . An air intake hatch is installed on top of it. 6 .
The radiator is located inside the upper part. 8 , and for the density of its fit, a foam pad is used 7 . This radiator is connected to the cooling system through metal pipes. 9 . A valve 10 for supplying liquid to the radiator is installed on the inlet pipe.
The stove fan consists of an impeller 11 and electric motor 12 . The fan is attached to the case with a bracket 13 , and to eliminate its vibration, it is pressed with a pillow 14 .
On the lower part of the body there are dampers for supplying warm air to the front doors 15 , as well as a cover for air supply to the leg area 16 .
But this is only the design of the stove, in order for the VAZ 2104 interior to be heated properly, additional mechanisms are attached to it.
The following pictures show the rest of the system
The design of the heating system VAZ 2104
Heating system side view
Under the notation 1 And 2 left and right ducts shown with left 4 and right 5 nozzles. Position 3 points to the windshield duct. Control Panel - 6 , with crane control handles 9 , inlet cover 10 control and side and windshield heating controls 11 . under position 12 the air distribution cover lever is located.
Next are the elements of the stove itself: 13 – fan housing with impeller 14 and electric motor 15 , windshield flap 16 , fan speed control resistor 17 , fan housing guide 21 , fluid control valve 22 , radiator housing 23 , radiator 25 with gasket 24 , fastening elements of the air intake cover 26 .
Position 18 – control rod for the side heating damper, 19 - side window heating damper, 27 – heater draft, 28 - air intake grille, 29 - car hood 30 - air box 31 - windshield.
Heating scheme
Air flow diagram of the heating system VAZ-2104
Cold air is supplied into the heating system through the air intake grille 28 installed near the windshield from outside the car. Further heating of the VAZ-2104 can be carried out in three directions, which are selected by the control system:
1 – Heated windshield, this direction is marked in red. With this scheme, air enters through the hatch 7 into the airbox 30 for cleaning from dust and drops of water. Then it moves through the radiator 25 where it removes heat from the coolant, as well as the fan housing 13 from where it enters the windshield heating duct 3 .
2 – heated side windows in front, this direction is marked in blue. Here, air also enters through the hatch into the box, then into the radiator casing 23 , and then enters the left and right air ducts 1 And 2 .
3 - heating of the legs, this direction has a green designation. Air enters the passenger compartment, as in other directions, but after the radiator casing, it enters the internal ventilation duct 8 .
System management
At the VAZ-2104, the interior heating is controlled by the control panel handles, each of which ensures the closing and opening of one or another element.
Yes, top handle. 9 provides opening and closing of the radiator valve 22 . It regulates the amount of fluid that will enter the radiator.
Medium handle 10 the hatch cover 7 of the air inlet is opened and closed, which regulates the amount of fresh air supplied from outside the car.
Lower handle 11 regulates the position of the damper 16, which distributes the air flow through the air ducts.
There is one feature of the airflow distribution control. At damper position 16 on blowing the windshield, the side window heating flaps are completely blocked. And vice versa, when the flow is blocked by a damper on the windshield, the air is directed only to the side windows.
This phenomenon is due to the fact that the windshield damper lever is connected to the side air duct damper lever. Therefore, to simultaneously heat the windshield and side windows, the damper control knob must be set to the middle position.
Heating VAZ-2104 is produced in 4 ways:
- Windshield heating (Middle and lower handles of the control panel are moved to the right as far as they will go);
- Heated side windows (the middle handle is moved to the right, and the bottom handle is turned to the left as far as it will go);
- Heated legs (upper handle - to the right as far as it will go, the air distribution cover of the heater housing is lowered down);
- Hot air supply from the outside through the lowered windows (it seems like a joke, but this is indicated in the technical documentation for the car);
This car also provides exhaust ventilation, to remove air from the passenger compartment. Unfortunately, there is no scheme for this ventilation specifically for the VAZ-2104, but it is identical to the VAZ-2105 model, which is presented below:
So, 1 is the car heating system, 2 - a decorative grille, a rubber valve is hidden under it 3 through which air can escape when the windows are closed. The same valve prevents dust and moisture from entering the cabin.
Proper control of the heating and ventilation system VAZ-2104
Correct control depends on the weather outside. In the summer, when it's hot and the supply of hot liquid to the radiator is not needed:
- The lower handle of the system control panel is moved to the right as far as it will go to open the air intake cover and supply fresh air to the passenger compartment;
- The distribution of the air flow is carried out by the middle handle;
- To provide more fresh air, you can turn on the fan;
When it's cold outside:
- Move the top handle all the way to the right to ensure the supply of hot liquid to the stove radiator;
- Turn the nozzles of the side air ducts so that warm air goes to the side windows in the area where the side mirrors are located;
- To heat the legs, lower the cover of the heater housing down;
If the windshield is covered with frost and needs to be defrosted quickly:
- Move the top handle to the right until it stops for maximum fluid supply to the stove radiator;
- Middle handle - all the way to the left to shut off the air supply from outside the car;
- The lower handle - to the right until it stops, to ensure that warm air is supplied only to the windshield;
Video - stove VAZ 2104
The question of buying an autonomous heater (AO), as a rule, comes to the mind of motorists with the onset of cold weather. Indeed, sometimes it is more practical to use an autonomous heater than to force the engine to idle to warm up the passenger compartment. In this article we will talk about the design, types and method of installing the device on our own.
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Characteristics of an independent heater
Let's start with the characteristics of gasoline, diesel or electric AO at 12 volts. It should be noted that in practice a gasoline autonomous heater is one of the most reliable. If necessary, the driver can activate only the interior heating, and not all elements of the vehicle. The auxiliary heater can be equipped with various functions, including a timer, as well as a pre-start device. During operation of the AO, the cabin or interior of the vehicle can be warmed up in a few minutes.
Which AO device (consider the example of a diesel unit):
- Node with a combustion chamber. This component is one of the main components of the system.
- The autonomous interior heater is equipped with its own gas pipeline, which is connected to a common line and feeds the system itself, depending on whether the engine is functioning or not.
- The exhaust system, which is equipped with an autonomous interior heater, is designed to release exhaust gases. Gas can be released behind the fenders or under the engine.
- The device kit also includes clamps for its installation in the engine compartment.
- One of the main structural elements that the parking heater has is the control unit. This component can be push-button or remote, its installation is carried out in the vehicle interior.
- Other elements designed for the correct operation of the system in various conditions. Their availability varies by manufacturer.
This is a very handy thing, which, moreover, prolongs the life of your engine!
Principle of operation
How does a 12 or 24 volt petrol or electric parking heater work? The principle of operation of such a stove is similar to the principle of operation of a conventional hair dryer - the system simply heats the air flow entering the car interior as a result of fuel combustion. Depending on the type of system, fuel consumption during operation is around 100 grams per hour, but this figure may be different, depending on the manufacturer (the author of the video is Alexander Termokirov).
The principle of operation is as follows:
- First, thanks to the fan, a cold air stream is driven from the vehicle interior.
- This air stream is heated in the combustion chamber of gasoline, diesel or electric AO at 12 or 24 volts.
- After heating, the air again enters the cabin.
Kinds
As for the types of AO for a car, there can be three of them, depending on which part of the car they will heat:
- Air. Autonomous air heaters allow you to warm up only the air in the vehicle interior. As a rule, this type of AO is a traditional fan that simply heats the air.
- Liquid. The liquid-type parking heater is designed to warm up the cooling system if it is not started by the engine. It can also heat the fuel system, which is no less important for cars running on an engine.
- Oil. Such a parking heater is designed to warm up the oil line of the vehicle. The operation of such a system will speed up and also simplify the launch of the power unit during the cold season.
Also, stoves for warming up the cab and car interior can be divided according to the method of supply:
- gasoline, which run on gasoline;
- diesel, functioning, respectively, on a diesel engine;
- electric for 12 or 24 volts, powered by current.
DIY installation instructions
In order not to subsequently require repair of autonomous car heaters, most manufacturers initially recommend contacting specialists for installation. Of course, it is better to entrust the installation of such a system for a cab or car interior to professionals, especially if you are faced with such a task for the first time. But sometimes car owners have to install the AO on their own. This issue is especially relevant for motorists from small towns, in which there are simply no good specialists and, accordingly, the possibility of a high-quality installation.
In addition, it is sometimes necessary to install a gasoline or electric AO at 12 or 24 volts on your own due to the high cost of installation. However, it is always necessary to remember that car owners do not always manage to save money on self-installation of AO. After all, if you accidentally break at least one 12 or 24 Volt electrical joint-stock mount, this can lead to serious financial costs.
So, in order to independently install the electrical system at 12 or 24 volts in the cab or interior of the car, you must perform the following steps:
- First of all, in order to correctly install gasoline, diesel or electric 18 volt AO, you need to decide on the installation site of the stove heater itself. To do this, you need to find a place in the engine compartment that will be the most optimal.
- The next step in the installation of a 12-volt gasoline or electric joint-stock company will be laying the line. If this is an electric version of 12 volts, then it can be powered by a cigarette lighter or battery. Appropriately, you must connect the power of the device to or cigarette lighter. If we are talking about the fuel option, then a line should be connected to the stove heater, which can go directly from the tank or fuel pump. If necessary, you can use the branching in the engine compartment.
- Next, an electrical connection must be made to activate the operation of the control unit. The block itself is desirable to be placed in the vehicle interior. Please note that the unit must not be exposed to moisture and high temperatures, as this will negatively affect its functionality. For connection, you can use an unloaded circuit protected by a fuse. The use of a fuse or relay is important because power surges can burn out the control unit. But, as practice shows, blocks from well-known manufacturers, as a rule, serve for a long time.
- Then you need to conduct air ducts from the device to the vehicle interior. For this, as a rule, the lines of the regular stove of the machine or other openings are used.
- Make sure that there are no gaps at the entry points of the heating pipes, as this will lead to cold air flow into the passenger compartment. In order to get rid of the gaps, use the sealing elements that should come with the kit.
- After the additional interior heater is installed, it is necessary to check its performance. It is advisable to do this before you start assembling all the components of the engine compartment. Turn on the stove and, in accordance with the operating instructions, check the operation of the system in all modes. More details about the installation of such a system are described in the video (the author of the video is Timur Safin).
Operation features
What you need to consider when using the device in order to prevent its accelerated failure:
- When buying such a system, it is necessary to carefully study the features of installation, as well as use. Carefully read all the manufacturer's recommendations, pay attention to the power parameter of the device itself. In the event that the power of the system does not correspond to a similar parameter of the on-board network of the machine, the installation of such an AO is not allowed, since it can cause problems.
- Each time the system is put into operation, it is necessary to check its performance. Make sure there are no leaks or any damage.
- When using a gas type heater, make sure that fuel does not leak out during installation. A gas leak can lead to poisoning of passengers and the motorist.
- Never turn on the heating system to the maximum mode. Be aware that excessive heating of the airflow can lead to poor health. This is because the heated air then will be very dry, respectively, you will need to ventilate the cabin more often.
Video "AO testing after system installation"
In the video below you can see how the installed interior heating system is tested (the author of the video is Slava Petrov).
