One of the most topical issues for motorists in the winter season, there has been and remains the issue of effective interior heating. And this is not surprising, because when it is -25 degrees outside the window, and things, nevertheless, do not wait, then, willy-nilly, you want to quickly get into such a familiar and warm interior of your favorite car and turn on the seat heating.
Otherwise, you run the risk of freezing as soon as you sit down ... It is at such moments, as a rule, that they remember warm summer days, when everything is easy and simple, comfortable, just outrageously, and birds sing outside the window. That's when the grass is greener, the sun shines brighter, and the spiritual mood of the positive with its waves warms the joyful heart. Immersed in an atmosphere of peace and harmony? This is good, but no matter how much you want it, you still have to return from heaven to the sinful earth and remember that it is winter outside ...
So let's take a look at how things are winter period for most car enthusiasts: early in the morning a person leaves the house, starts the car, if he left early, he warms the interior, but if not, he leaves without wasting time, because you need to be in time before work and have children in kindergarten or school, as a result, more or less the cabin warms up already upon arrival at the designated end point. What to do? How to be? What can be done in this difficult situation? Let's think logically...
Heating control systems in the car interior
To date, manufacturers provide the following heating control systems for heating the car interior: conventional mechanical and one-, two-, three-zone climate control, as well as programmable electronic climate control.
The problem is that many of our fellow citizens, when buying a car, do not even bother to look into the user manual, and therefore there are often cases when they simply do not know how to use the heating system correctly, excused by the fact that they are allegedly to blame for the fact that they are freezing. , exclusively, a stove, which, according to them, practically does not heat or heats very weakly. That is why it is so important to know the information below...
In fact, the procedure for starting the heating system of a car is no more complicated than the starting system for the car itself, one might even say that it is similar. So, the order is as follows: the owner starts the car, then warms it up, which depends entirely on the heating system installed on board. So, for example, if a mechanical system is installed, then you will have to act as a sensor yourself, that is, decide to turn on the heater immediately or after a certain period of time.
According to statistics, warming up the engine takes an average of fifteen minutes, and heating the cabin for the optimum temperature takes about 30-35 minutes, which is why, as a rule, you have to leave when it is still cool enough in the cabin and only warm up on the way. You ask: “Why is it taking so long? What is the problem?". Everything is simple - the point is the close relationship between the engine cooling system and the stove radiator, and therefore the car interior will not heat up until warm liquid appears in the engine.
This happens as follows: after turning on the heater, cold air, passing through the stove radiator, begins to enter the cabin already in a warm form, but due to the fact that the liquid has not yet warmed up, and besides, it has already cooled a little, the process of warming up the cabin dragging on...
In the case of a climate control system, after reaching the operating temperature of a certain level for 10-15 minutes, air is slowly supplied to the passenger compartment, and with increasing temperature, the intensity of this process only increases, when the set temperature is reached, the maintenance mode is activated. As a result, the whole cycle takes about 30 minutes.
In addition, it is also important to understand that in order to heat the incoming air flow, the temperature of the climate control system must be 2-2.5 times higher than outside the window, of course, including possible losses, because first you need to warm up the engine to the minimum mark of the sensor. For example, warming up the car itself takes about 10-15 minutes, and it will take another 30 minutes to warm up the interior. These data are approximate and best correspond to an air temperature of -18 degrees Celsius.
Is there any way to speed up this process? And, if possible, in what way? This is what will be discussed below ...
How to speed up the process of warming up the car?
This question is asked by many motorists, especially those who do not have much experience. Who wants to sit in a cold, frozen cabin? Let's figure out how to properly use the heater in winter.
What will the misuse lead to?
Some drivers claim that if the stove is used incorrectly, even the windshield can crack. You may have seen cracked wind deflectors on the dashboard. What is the reason for the appearance of defects? Incorrect heater operating mode selected. Also, this can lead not only to uneven heating of the passenger compartment, but also to problems with the heater itself.
Therefore, it is better not to bring it to this and stick to it. certain rules turning on the stove in winter.
Turn on the stove correctly
If you start the engine and the stove was already on, this can lead to the following problems. This often happens if the driver has put autostart in his car. It's a pleasant thing to leave the house and immediately sit in a warm, heated car. But in the end, starting the engine with the stove turned on can lead to breakdown. So imagine that you were left without a normally working heater in the winter and ended up for repairs.
Also, do not turn on the heater immediately after starting the engine, especially if there is a hard minus outside. Heating comes from the fact that the antifreeze in the cooling system gives off heat. As soon as you start the engine, it is cold, and the air will blow cold into the cabin. Therefore, what is the point of turning on the stove to fill the interior with cold air? It just doesn't make sense to turn on the stove until the engine warms up. So let the motor work out and only then turn on the heater. And then you heat up the interior much faster. The engine should reach operating temperature.
Choosing the right mode
Many of our drivers are in a hurry. To quickly heat the interior, they not only rush to turn on the stove, but also immediately select the hottest mode. Only under this condition will your part of the cabin be fiery, and part cold. Will you feel comfortable with such drops? It is unlikely that the body will be hot, and the legs cold. How not to forgive.
Use deflectors correctly. The best option- let the heat in the legs first. Warm up for a couple of minutes, then direct some of the air to the legs, some to the windshield. So you can definitely avoid cracks on the windshield.
Also consider such a moment as the blowing force. You do not need to immediately turn on the maximum mode on a cold stove. Everything should happen gradually. Start with the first speed, as on the box.
And what about climate control?
If your car has this great modern option, let's take a look at how climate control works in winter. Select the temperature on the display that is optimal for you. If you have a sophisticated climate system, such as three-zone climate control, then you can choose the right temperature for both the driver with the front passenger and those who ride in the back sofa.
If you press the "recirculation in the cabin" button, then you will accelerate the heating of the cabin. Climate control should automatically heat up to the temperature you need and maintain it throughout the trip. If this does not happen, then something is wrong with the system.
What do you want to warm up?
Modern drivers are very fond of comfort, so they install additional options on their cars, for example, heated seats, windshield, etc. Even in a cold cabin, seat heating allows you to immediately feel comfortable. It is turned on immediately after the engine is started.
If one stove is not enough, especially in large cars, they put an additional heater for passengers. Often put in minibuses, as well as taxi drivers and drivers on heavy trucks.
Still, the stove is an extremely important element in the car in winter. It is impossible to drive a car without a normally working heater. This is the guarantee of your health and your safety.
How to warm up a car interior in winter is a popular topic of discussion among motorists, especially beginners, in winter. And this is not easy, because in winter the air temperature often drops below marks -25 degrees, but you want to get into a warm car with heated seats as soon as possible.
The algorithm of actions in winter for each motorist is approximately the same: on a frosty morning, he leaves the house, if he left earlier, he starts and heats the car interior, if not, he starts the car and hurries to work (on business), eventually, upon arrival at the required place, the salon warms up. How to act in the current situation? How to warm up a car interior in winter without spending a lot of time on it? We will analyze this issue in this article.
How to properly warm up the interior of the car in winter
Motorists warm up their car not only because they are worried about the operation of the engine and transmission, but also in order to heat the interior in winter. Few want to sit in frozen car, especially when there is no heated garage and she stood outside in the cold all night.
Sitting on cold seats is dangerous to health. And if you have a large family and you need to take the children to a kindergarten or school? The question of how to warm up the interior of a car in winter in a short period of time becomes very relevant.
Can be distinguished 2 ways to heat the car interior: the use of a standard heating system provided by the automaker (stove, climate control), and the use of additional equipment and systems.
The catch is that often when buying a car, drivers do not look into the owner's manual, so they simply have no idea how to operate the oven car. And with the onset of winter, you need to know this. You can often see cracks on the bottom of the windshield. Improper use of the stove usually leads to this.
How does the car heating system work?
It takes about 25-30 minutes for the engine to warm up to operating temperature, and because of this, you have to drive the car when the car interior has not yet warmed up. What is it connected with? The fluid from the cooling system flows through the radiator, which is how these 2 systems are so closely related to each other.
When the oven is turned on, air flows through the radiator heater and warm up. In a warm form, he enters the salon. And if the engine did not have time to warm up, respectively, the coolant is also cold, then the process of heating the interior of the car is delayed for a certain period of time.
It makes no difference what heating system the car is equipped with. The main source of heat is the engine, or to be more precise, the coolant entering the radiator of the car stove. The fan directs air through the radiator, thanks to which the air flow is heated, which leads to an increase in the temperature inside the car. But if the engine is not warmed up, then it is not worth it to eat some heat in the car.
How to warm up the car interior in winter without spending a lot of time on it, read on.
How to quickly warm up a car interior in winter with a standard heating system
The procedure for heating the interior of a car in winter with a basic stove does not take much time, the main thing is to know how to do it correctly. It happens that even car owners with many years of experience do not know how to properly use the stove in winter.
The easiest way for the owner of cars with a climate control system, with proper configuration, the system will independently heat the temperature inside the car to the optimum temperature.
How to properly warm up the car interior:
- Before starting the engine and starting to warm up the interior, it must be thoroughly ventilate to even out the humidity levels inside and outside. It is enough to open the doors for 1-2 minutes.
- Enable mode " air recirculation". Thus, the ventilation slots will be closed, which will not allow icy air to enter from the street. The heating system in this case will not take air from outside, but will use warm air from the passenger compartment, driving it constantly through the radiator and warming it up more and more. Thus, the interior heating will be performed much faster. It must be remembered that if at least one person is in the cabin, the windows will fog up very quickly. Because a person exhales moist air.
- Turn on the oven for at 1-2 speeds. It makes no sense to install at full capacity at the initial stage, because. the coolant will not be heated and the radiator is also cold. You need to increase the power as the cabin warms up. It makes sense to set full power only after 10 minutes of warming up the cabin.
- Expose maximum air temperature.
- When the windows fog up, set the mode to " from glass to feet". Standard mode, which is provided on all cars.
- After 6-7 minutes, you can switch to the " in the center - at the feet". At about the 10th minute, when it becomes comfortable enough in the cabin, you can start moving. By the 15th minute, the air temperature will be optimal. However, do not forget to switch modes, preventing the windows from fogging up.
- When the cabin warms up to the optimum temperature, you need to disable air recirculation mode, and continue heating the passenger compartment in the usual way.
How to quickly warm up the car interior in winter with an additional heating system
Additional interior heating systems are most suitable for those who do not want to spend a lot of time heating the interior. How to warm up the car interior in winter with additional equipment.
Fuel preheater. The equipment is mounted under the hood of the machine. It is powered by car fuel. It turns on before starting the engine and allows you to heat the engine and interior in a matter of minutes.
in winter car heaters help to solve the problems of warming up the interior and engine of the car.
Electric preheater. This system operates from a 220 V network. Before starting the motor, this equipment is connected to the electrical network and heats the working fluids to optimal temperatures. The device is installed in a water jacket or crankcase. After some time of its operation, the coolant becomes warm, respectively, much less time will be spent on heating the interior.
remote start. The car remote start system allows you to start the engine without leaving your home. You can start the car 5 minutes before the exit, so a warm cabin will be waiting for you.
How to warm up the interior of the car in winter so that it is comfortable to be in it? There is nothing difficult in this, the main thing is to clearly follow the instructions and advice.
If the engine is cold, can the heater be turned on? You can, initially, the fan speed must be set to a minimum, and increased only as the cabin heats up.
If the fan speed is low, then the air will pass through the stove radiator slowly, respectively, it will warm up faster. That is why, when warming up the cabin, it is initially necessary set speed fan to 1 or 2, not to the maximum.
So that when the interior is warmed up, the windows do not fog up so much - lower the side window by at least 1 cm, so it will begin to flow Fresh air from the street, and the humidity of the air is stabilized.
When glass freezes the car does not need to turn on the windshield heating with hot air at full power. This can lead to bad consequences. The fact is that the surface of the glass is cold and when hot air is directed, the windshield can burst.
There are several ways how to quickly defrost a windshield car in winter and/or prevent it from freezing.
So that the car windows do not have to be scraped off the ice in the morning. Before leaving the car parked overnight, open the car doors, thus setting the inside of the cabin to the same temperature as the outside. Due to the heated state, the falling snow melts and freezes on glass.
Conclusion…
Now you know how to warm up car interior in winter, using these tips in practice, spend much less time heating the car in the early winter morning. Agree, it is much more pleasant to sit in a warm salon. Take care of yourself and your passengers.
Automaker Mazda creates some of the most comfortable sedans. Their driving gives the driver only positive impressions. But there is one problem that motorists living in Russia have to face all the time. This is the freezing of the car in winter. Almost every time you need to go somewhere, the car first has to warm up for quite some time. And here it is very important to know the basic rules for operating a car stove.
Don't rush to launch
Before starting the engine, make sure the oven is turned off. Many drivers do not attach much importance to this rule. And always turn them on at the same time. After all, everyone wants to sit in a warm, warm car. However, this is a common mistake that can lead to very unpleasant consequences.
First of all, it is worth saying that it is simply useless. From the fact that the heater will be activated simultaneously with the engine, there is no special sense. Until the motor picks up speed, it still will not be able to maintain a decent level of operation of the furnace.
The engine itself must warm up first. And only after that you can count on the full functioning of the stove. Launched simultaneously with the motor, it will only interfere with it. And besides, it's easy to discharge the battery.
Power selection
Another common mistake of car owners is the maximum power of the furnace when it is started. Drivers mistakenly believe that in this case the car will warm up faster.
The maximum mode increases the flow rate of heated air entering the cabin. As a result, energy is distributed unevenly. The area opposite the air duct heats up rapidly. And the rest of the zones remain unheated for a long time. If a person is in his car at the same time, then he risks getting sick. Since a very dangerous temperature contrast is created. The heat from the stove forces the driver to get rid of outerwear. But there are still very cold areas around it.
Dangerous Contrast
The temperature difference during a sharp, powerful heating of the machine can pose a threat not only to humans, but also to the machine itself. In this case, the hot stream can provoke the formation of cracks on thoroughly frozen glass. In order not to damage them, you first need to use the deflectors to direct heat to the lower part of the cabin. Then to the middle one, so that the car warms up evenly and gradually - from the floor to the roof.
You should start with the weakest stove mode. After a few minutes, move on to the next one. And the most powerful option is to run last.
Quite often, people wonder how to properly turn on the stove in the car in winter. After all, at negative temperatures in an unheated cabin it is very uncomfortable, and under certain conditions this can lead to health problems. If you use the heater incorrectly, you can get completely different problems, which is also not very good. note that warming up the cabin should be considered only in conjunction with other actions to bring the car into working condition. Using the stove correctly, you will increase the level of comfort in the cabin.
How to turn on the stove in the car in winter? Knowing the answer to this question will allow you to avoid many problems. Most often, when the stove is turned on incorrectly. Probably everyone saw long cracks along the deflectors on the dashboard, the reason for this is the wrong mode of operation. Also among the consequences of improper inclusion of the heater can be called uneven heating of the cabin. Sometimes, there may be a problem with the performance of the stove. Therefore, it makes sense to study all the main nuances.
How to enable?
The first mistake that drivers make is starting the engine with the stove on. This can lead to two problems at once:
- Often car owners who use this sin. They like to come immediately to a warm salon, but the possible disadvantages outweigh all the positive aspects. You should not start the engine with the stove on if you do not want to get it repaired, which is not very pleasant in winter.
- The next point, which is also a mistake, is to turn on the stove immediately after starting the engine. Especially if there is a serious minus on the street. There are several reasons to consider such actions simply useless:
- Only a running engine has not yet gained momentum, and is unable to support the work of powerful energy consumers. Therefore, it can often be observed that when the stove is turned on during the first 10 seconds after starting, the motor begins to wither;
- Heating occurs by heat transfer from the antifreeze in the cooling system. Immediately after starting the engine, it is cold, so there is zero sense from heating. Also, do not forget that at first the coolant drives, that is, through the engine. As a result, the stove, turned on until the motor is heated, is simply useless.
another mistake can be called misuse of modes of operation. Often, drivers, in order to speed up the heating of the cabin, immediately turn on the maximum possible mode. This is where the problem arises. Too fast air supply does not accelerate the heating of the passenger compartment, and uncomfortable zones arise due to the uneven distribution of heat. This is fraught with the risk of getting sick, because your legs and head will freeze, and the body, on the contrary, will be in heat.
It is important to use the deflector system correctly. The best option would be first send heat to the feet. After waiting a couple of minutes, you need to distribute warm air between your feet and the windshield. This will give the best result and avoid cracking the windshield. Another point to consider is the speed of the stove. Do not turn on the maximum mode immediately after starting a cold stove. Start with the first speed, and gradually increase the speed of work.
Climate control features
Now, more and more cars have this option. Therefore, let's see how it works in winter. Be sure to set the climate control. Otherwise, there will be no sense from it. Choose the optimal temperature that suits you completely. As a rule, this element has additional keys for controlling mechanical components. We are interested in the button recirculation in the cabin”, sometimes it may be called differently, but its meaning remains to block access to the outside air from the cabin. So you will significantly speed up the process of warming up inside. If the car is working properly, then the process will calmly proceed automatically. Pay attention to his work. The intensity of the heater is constantly increasing, this must be taken into account when warming up the passenger compartment in manual mode.
Additional devices
To achieve greater comfort, many cars install heated seats. This allows you not to freeze to the seat even in a cold cabin. You can turn it on immediately after starting the engine. This will ensure a sufficient level of comfort. Sometimes, drivers put an additional stove in the cabin. It can operate both from a small engine installed in the engine compartment, and from the mains. It makes sense to install such a device if long parking is necessary in winter with the driver in the cabin. Often such solutions are used by taxi drivers, as well as truckers.
Conclusion. The stove in the car is important element which allows you to safely and comfortably use vehicle. Therefore, the question of how to properly turn on the stove in the car in winter is the place to be. After all, this seemingly simple question has a large number of nuances. Only careful observance of them will avoid problems, as well as keep the health of the driver and passengers in order.
Winter operation of the car is associated with numerous difficulties, including the need for proper warming up of the car. The air temperature in December-February can be minus 20-30 degrees, which leads to freezing of the oil in the engine, which loses its properties. Driving in such a cold car will lead to increased engine and transmission wear. At the same time, it is extremely difficult to quickly warm up the car, which leads to a significant loss of time in the parking lot under the house. Let's talk in more detail about how to properly warm up the car in the winter season.
The need for proper warm-up of the car
It often seems to car owners that warming up the car means only increasing the air temperature in the cabin, thereby ensuring the comfort of driving. However, first of all, it will be necessary to ensure the heating of the technical fluid in the engine and gearbox, on which the absence of premature engine wear will directly depend. If you hit the road on a cold engine, the oil will not provide the necessary engine lubrication, there is increased wear, and by 100-150 thousand kilometers such an engine will require a major overhaul or replacement.
You should also remember about such a concept as thermal deformation of the metal at low temperatures. This leads to improper operation of the valves and the piston group. As a result, the machine begins to consume more fuel, cylinder wear occurs, valve failures may occur, and it is not uncommon for the crankshaft to jam, after which it is required overhaul car. Such breakdowns can only be prevented by properly warming up the engine, the technology of which will differ, depending on the presence or absence of autostart and an autonomous heater.
Algorithm for proper engine warm-up
Often, car owners make a common mistake, after a long overnight car parking, they start the engine, after which they turn on the stove to the maximum, which, in their opinion, should heat up not only the engine, but also the air in the cabin. However, in reality, in such a case, the load on the engine increases significantly, which for a long time reaches the minimum temperature regime.
The speed of warming up the engine and interior are interconnected. At the same time, you need to understand that it is possible to ensure that warm air enters the passenger compartment only when the engine is hot. Effective heating of the engine and interior is possible only when the coolant warms up to the desired levels, after which hot antifreeze is supplied to the stove radiator, which allows you to quickly heat the car interior.
Modern cars can be equipped with several heating systems, a programmable electronic climate, as well as one, two or three-zone heaters. Often, car owners do not read the instructions for their car, which details how to use such heating, how to properly warm up the car and how long this procedure takes on average.
According to statistics, in winter, at temperatures outside of minus 10 degrees, the engine usually takes 15 minutes to heat up, and it takes 30-35 minutes to raise the temperature in the cabin. Whereas in winter we often warm up the car for 5 minutes at the most, which is spent on cleaning the windows from ice. After that, the car owner sets off on an actually cold engine, which leads not only to increased fuel consumption, but also to serious wear and tear and critical breakdowns of the power unit.
In order to properly warm up the engine on the car, it is necessary to turn the stove fan intensity switch to a minimum, then start the engine and leave the car to work for at least 10 minutes. With the heating circuit closed, the engine heats up quickly, as soon as the temperature of the coolant starts to rise, you can start driving the car, simultaneously turning on the stove and heating the car interior itself. If a Webasto heater or auto start is installed on the car, then you can immediately turn on the stove to maximum power, quickly warming up the car interior.
Summing up
In winter, it is extremely important to properly warm up the car, which allows not only to reduce fuel consumption, but also prevents the occurrence of increased wear and critical engine malfunctions. With such a run, you will need to start the engine by setting the heater control to minimum efficiency, or turn off the interior heating altogether. This will allow the engine to warm up faster, only after that you can turn on the interior airflow, and warm heated air will immediately begin to flow from the air ducts.
Consider two extremely different cars and, using their example, we will see how much warmer it can be in a modern car than in its ancestor thirty years ago and why.
As a first option, let's take an old car - like with its famous aluminum engine. In its arsenal - a massive, slowly warming up carburetor engine, a not very efficient heater and a slit body. The volume of the body, by the way, is quite large and it takes a long time to warm it up. about any additional funds heating the driver and passengers and is not audible. Is that an electrically heated cape on the seat.
The second option - with a relatively powerful naturally aspirated engine and all sorts of nice "warm" options. Compact - therefore, the interior volume is not so large, although in fairness, it must be said that a sedan of the same class has it a little less. Why a crossover? Yes, because on such a compact machine you have to rotate a bunch of gearboxes and transmission shafts under the bottom. At the same time, lubricants and oils thicken from frost. All this loads the engine more and, accordingly, accelerates its warming up.
We go further. A naturally aspirated gasoline engine warms up faster than a diesel or supercharged gasoline engine. "Warm" options - like heated seats, steering wheel and windshield - are not only useful and pleasant for those in the car, but also speed up engine warm-up, as they decently load it through the generator. The load of the on-board electrical network is maximum, the generator is working with might and main, taking power from the motor, and in response it warms up faster. Some modern cars also have a regular electric heater for air passing through the heater into the passenger compartment. This feature is extremely useful in winter.
These two cars, operated in the same conditions, in one case will freeze their owner for a long time, and in the other they will warm them up as quickly as possible. But the use of the heater in both cars should be almost the same, which will be discussed below.
How to heat?
Now let's figure out how to use the heater in the car. The most important thing, and not only in winter, is to guarantee traffic safety.
So, you approach a car swept up in snow and completely from yesterday evening. First of all, you should clean the gap between the driver's door and the body, otherwise snow will fall on the seat. It will literally be sucked in when you start to open the door. Next, you should start the engine and immediately turn on the air flow from the heater to the windshield, setting the maximum temperature. At the same time, one should not be afraid of classic winter glass cracks. After all, the windshield will warm up quite slowly along with the engine. And only if you have a car with an electric heater built into the stove, you should not select the maximum temperature on the control unit.
But if the car has electric glass heating, then you need to turn it on immediately and at full power. The main thing, I conjure you, do not start moving with a half-cleaned glass. Especially in sunny weather, when the frost on the glass plays with thousands of small “diamonds”, literally blinding the driver. In a word, clean the glass with a scraper, special aerosol defrosters, a warm “anti-freeze” brought from home ... But from a place with opaque glass - no, no.
So, we wait for the windshield to be cleaned and only then we start moving. At the same time, the engine continues to warm up, and its heat should be enough to evenly heat the entire interior of the car. You can direct part of the heated air down to your feet. It is useful to do this not only so that the lower limbs do not freeze, but also to dry the car mats, on which snow and water porridge takes up more and more volume in winter. And wet carpets are fogging of glasses, and indeed a nasty atmosphere in the car.
On vehicles with manual heater fan speed control, it makes no sense to use a speed higher than second during warm-up in winter. The air will not have time to heat up, passing through the heater heat exchanger. There will be a lot of noise, a draft, but the air enters the cabin barely heated. In addition, this mode will lead to a slowdown in engine warm-up, which is harmful both for it and for the microclimate in the cabin. Until a modern fuel-injected engine warms up, the RPM crankshaft it will be somewhat increased, reaching 1500 -1800 rpm. After that, the RPMs will start to drop down to idle. And if we are forced to wait for the windshield to thaw, sitting in the cabin, then it is useful to maintain a slightly increased engine speed, but not more than 2000 rpm. However, if you are parked in the courtyard of a residential building, then you should not smoke again. It is better to go slowly, even at the lowest speed. And the engine will warm up faster, and the heat will enter the cabin earlier, and you will not cause discomfort to your neighbors.
Switching on at negative temperatures is impractical. However, the car itself will not allow it to be turned on. At the same time, the air conditioner operation indicator (A / C button) may light up, but really when negative values temperature, the electronics will not allow the air conditioning compressor to turn on in order to avoid its breakdown.
Air recirculation - to include or not?
If your task is solely to ensure that the interior is heated as quickly as possible, then the included recirculation can slightly speed up this process. But then you have to solve another problem -. The fact is that in the car it is always very wet from snow on the floor mats, on the clothes of the driver and passengers. Breathing, especially by several people, also greatly humidifies the air in the cabin. Recirculation can be used for a short time while driving, when the car interior is well warmed up, dried up a little, and a smoky KAMAZ is driving in front of you on the road. recirculation mode is turned on if you need to talk to a passenger in a parked car for a while, and it is very cold outside. In this case, recirculation should be combined with a stove turned on at maximum temperature, because the engine running on Idling, weakly pumps liquid through the heater.
Autostart and autonomous heaters
The devices are diverse from a technical point of view, but, in fact, they allow you to warm up the car without the participation of the owner. Therefore, the speed of the heating process itself does not play a special role. However, there is another, legal nuance. Environmental requirements in residential areas are becoming more stringent. As per the rules traffic, parking with a running engine in a residential area is prohibited. So no more than 5 minutes. In other words, a car in the yard with the engine running longer is illegal.
