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Installation of an additional stove on a diesel UAZ. Why do I need an additional stove for UAZ Patriot

I want comfort, it's cold - I opened it, it's hot - I covered it, and all this without stopping or leaving the car. Bought - a stove faucet from a VAZ 08. It was - a suction cable from the same VAZ 08 and a block of control levers from an IZH-combi.

Dismantled everything - I love space

Since the manual gas control cable became unnecessary, I threw it away, and in its place I stuck a cable in a sheath from a VAZ 08, why in a sheath? The fact is that the cables pass through the air duct of the stove and all the moisture settles on them, and this is rust and a wedge ...

The faucet is assembled and ready for installation. You need to buy sealing gum in the body

Control block…

For me, it fits in very well with the overall situation. Threw away lower arm as unnecessary, I think to transfer the control of the heater motor to the right toggle switch, and install the cigarette lighter instead of a stationary emergency gang in an empty place on the left ...

The cable sheath must be fixed on the crane body, there is even a special place there, but it does not suit me. Decided to make my own fasteners. Honestly, by trial and error, I came up with a mount three times and all with the use of two studs, but they disappeared, since it required a lot of manipulations with the metal.
The decision came as an insight - the simpler, the more reliable!
I made a template out of paper, and then out of cardboard, which I transferred to metal and, with the help of a Bulgarian, sculpted a mount!

In place drilled holes in the faucet body

And that's what happened

riveter to help

And I went to the garage to install this miracle of man-made deeds.

and this is from the salon

I didn’t find rubber seals in the body under the hoses in the store, if I don’t find it, then, as it was, I’ll fill it with mounting foam ... Foam rocks!
I left the connection between the faucet and the pump for later ... I will connect it locally, bypassing the carb, having bought a meter of hose 16x24

2. Installing the interior heater "NAMI-4" in the UAZ Hunter

Glasses sweat in Hunter - this is an axiom. One of the main causes of this disease is the imperfection of the design of the air intake and the interior heater (salon stove).

The air intake hatch is slightly "recessed" relative to the plane of the front, so the water, without encountering much resistance from the rubber seal of the hatch, enters the passenger compartment. This happens even when the hatch is closed, since the design does not allow the cover to be pressed tightly.
When the hatch is open, rain, snow and spray rush into the air intake in an endless stream. The most interesting thing is ahead - this stream of water and snow falls directly on the stove radiator. It turns out the effect, like in a steam room, when you pour hot stones to "succumb to the park."
Moisture-saturated air is sucked in by the stove fan and evenly distributed throughout the car. On such days, the UAZovod becomes an illusionist or a juggler, deftly performing manipulations with the steering wheel, gear knob and a rag for wiping the windows.
And the regular stove loves to warm the passenger, while freezing the driver. The air flow from the fan is unevenly distributed, so the passenger receives significantly more heat than the driver.
This whole madhouse with a stove is very annoying, so the owners of UAZs all possible ways trying to eliminate design flaws. Some remake the stove itself, others upgrade the air intake hatch, others simply buy a plastic "nostril" for the air intake. I have always dreamed of the stove "NAMI", about which I read a lot of positive reviews on the pages of Drive.
The NAMI stove is a development of engineers from the NAMI Central Research Automobile and Automotive Institute.
You will not find such a stove in an auto parts store - single production, well, maximum - small-scale. The NAMI stove has already gone through four upgrades that improve its functionality and power.
The whole charm of this stove is that it is devoid of all the shortcomings of the regular UAZ heater, while it has a number of design solutions that increase comfort and ergonomics. The only big drawback of the "NAMI" heater is its high price.
Well, what to do, you have to pay for comfort ... Having weighed all the pros and cons, I decided not to upgrade my "native" heater, but to buy a ready-made stove "NAMI-4".
I went to the site, called the phone number indicated there, arranged a meeting right at the gates of the NAMI Institute. On the appointed day, I boarded the morning train and went to Moscow. At a prearranged time, a UAZ, cheerful, green-orange, drove up to the entrances of the institute. A pleasant elderly man got out of the car, who turned out to be one of the developers of the NAMI heater. He told me that the heater is assembled from spare parts available in car dealerships (motor, impeller, radiator, cabin filters), but they make the stove body and the “nostril” of the air intake according to their own matrices. The stove is assembled by hand, all connecting seams are carefully sealed. We also discussed the theoretical prospects for increasing production volumes and reducing prices, because at a lower cost, the popularity of this stove would increase significantly. But, according to the development engineer, due to the high cost of components and materials, improve pricing policy does not seem possible. After paying, I took the stove and went home.
Installing the heater "NAMI-4"
The heater kit "NAMI-4" consists of:
1. Heater with control unit - 1 pc.
2. Plastic console of the control unit - 1 pc.
3. Coolant supply hose - 2 pcs.
4. Elongated windshield blower hose - 1 pc.
5. Air filter housing - 1 pc.
6. Air filter housing cover - 1 pc.
7. Air filter - 2 pcs.
8. Mounting kit.
9. Installation instructions.

The installation of the NAMI-4 heater is described in detail in the attached instructions, but I will try to describe the scope of work in general terms.
The stove began to be installed late at night, so do not judge strictly by the photos of the black UAZ in the dark.)))
First of all, you need to drain the coolant. According to the Owner's Manual for the UAZ 315195 RE 05808600.133-2012 (Ed. 2, Rev. 2013) filling capacity engine cooling system - 12.5 liters. I combined the replacement of the stove with the replacement of the coolant, having bought two bottles of green antifreeze "NORD" with a volume of 10 liters and 4 liters.

We disconnect the coolant supply hoses and windshield blower hoses from the standard heater, disconnect electric wires. We unscrew the standard console from the instrument panel. We remove the regular heater, the air intake hatch, the rubber seal of the hatch, the hatch control mechanism.

The stock stove has been dismantled.

Hunter's stock heater and NAMI-4 stove

The holes inside the air intake box, which remained after the dismantling of the hatch control mechanism, it is desirable to muffle.
Thoroughly clean and degrease the groove in which the rubber hatch seal was located.

Clean and degrease the groove

We try on the air filter housing to the air intake and drill eight holes in the metal with a diameter of 3.2 mm along the holes in the housing.
Probably, each UAZ is unique, so the shape of the landing surface of the air filter is slightly different from the shape of the landing surface of the air intake. You should carefully consider the alignment of these connected parts.
After the holes are drilled, put the air filter housing aside, remove metal chips and apply sealant to the air intake seating surface. Yes, thicker, thicker! Water must not enter the passenger compartment through the junction of the air filter housing and the air intake.
I used ABRO silicone black sealant. Used up half a tube. After applying the sealant, install the air filter housing in place and attract with eight self-tapping screws.
Remove excess sealant.

Air filter housing installed

The joint is sealed

We install the cabin air filters in their places and close the cover of the air filter housing, which we fasten with four self-tapping screws. The kit comes with black self-tapping screws, but I safely lost them in the depths of the garage. By the way, cabin filters from some VAZ model.

Cabin filter from VAZ

Filters in place

Regarding the cover, I have a few comments / wishes for the designers of this heater.
1. The shape of the lower edge of the cover does not match the shape of the front of the machine. An unaesthetic gap is formed into which a lot of dirt clogs. Most likely I will have to process the edge with a file.)))

Wow, what a terrible gap

2. The right wiper touches the cover a little during operation. Perhaps this will be cured after processing the bottom edge with a file, but there is a possibility that you will have to heat it with a hairdryer and make a "dent" for the wiper to work freely.

The point of contact between the wiper and the cover

3. The cover must be removed periodically to clean or replace the air filters and remove dirt accumulated under the cover. The fastening of the cover on the screws begins to loosen over time. It would be more logical to use threaded bushings as a more reliable and durable connection method.

New air intake shape

Air intake cover. Front view

Now let's move on to work in the car. We install a new heater in a regular place with the help of two studs and M6 nuts from the fastener kit. During installation, I had no problems - the heater fell into place, as if it had always lived there.
Next, let's install the plastic console of the control unit. To do this, we need to drill two holes with a diameter of 3.2 mm in the instrument panel along the holes in the console. The console must be in the same plane as the instrument panel. We fasten the console of the control unit to the instrument panel with two self-tapping screws and already to it, with the help of two self-tapping screws, the standard console with buttons is attached. To be honest, the design is not very strong, and the wiring harness pads can hardly reach the buttons on the standard console.

The console of the stove control unit and the standard console

Beard. Side view

We connect the heater tap control rod and fix it with a special bracket from the fastener kit.
We connect the coolant supply hoses to the heater and the heater tap, tightening the connections with clamps. Installing blower hoses windshield. Here I want to draw attention to another design flaw. Initially, the coolant supply hoses are not straight, but somehow cunningly curved. It seems that this shape was given to the hoses, taking into account their future location in the space between the tap and the heater. In fact, it turned out that only one of the hoses is correctly bent and snaps into place as it should. The second hose did not lend itself to competent laying in place. Manipulations of turning, unfolding and exchanging places of hoses did not lead to a solution to this puzzle. In any case, the hose, which is put on the lower branch pipe of the tap, rests against the heater body and, breaking, strives to come off. Tormented, I laid the hose like this:

Laying coolant hoses

Connecting the hoses to the heater tap

Bottom hose not routed well

I think that I will have to return to this issue when I get to the installation of an electric pump.
Next, we connect the electrician. From the ignition lock relay, I have a wire with a cross section of 4 mm2 to power additional consumers. I connected the heater power wire to the block of this wire. The mass wire was fixed to the mass breaker bolt. The mass is massive, damn it. By the way, all wiring in the NAMI-4 heater has a cross section of 2.5 mm2, and the power wire is 4 mm2. A 30A power fuse is attached to the heater housing.
Well, almost finished, it remains to fill in the coolant and, with fingers crossed, check the system's performance ...

A little more, uh, a little more...

A few impressions:
The heat dissipation of the stove is good, but in this regard, I didn’t complain about the standard stove either, because the radiator of the standard stove is twice as large as that of NAMI-4. The flow of warm air is distributed more evenly between the driver and the passenger, but the second again gets a little more. Or maybe it's me that's so cold? The foot warms up well on the gas pedal, but the left foot is noticeably colder due to the incoming air flow from the door. A strong stream of hot air passes between the front seats, towards the rear seat. In my case, there is an armrest bar between the chairs, so you need to use either additional kit air ducts (sold as additional option for the stove), or install a second salon stove. Although even without these tricks, not a single passenger sitting in the back complained about the cold.
The NAMI-4 fan has three rotation speeds and is much quieter than a standard stove. I turn on the second speed only for quick warm-up salon, I do not use the third speed at all.
I forgot about the fogging of glasses during rain or snow, how about nightmare. Water does not enter the cabin through the air intake. In the windshield blowing mode, the air flow is much stronger than with the standard heater.
Unfortunately, due to the design of the air filter, the flow of forced air has decreased while the car is moving, so in the city you have to turn on the fan a little more often in the first speed mode.
But the dust now does not fly straight into the cabin, but is deposited on the filters.
In general, the impressions of the heater "NAMI-4" are positive, I do not regret the money spent.

I decided to put a second stove in my UAZ. And so, armed with tips and tricks, I began to implement the idea of ​​​​installing a second stove. It all started with the search for the stove itself.
Many people praise the salon stoves from the Patriot. They say they are hot, unpretentious, quiet at work. As I found out, 2 types of basic stoves for Patricks are produced: OS-4 and OS-7. Power difference: OS-4 - 4000 W, OS-7 - 9000 W. There are still modifications, but for the most part these are the same stoves with different design changes. Everything about them is good, but there is such a bad factor as the price. The price for them is such that only the sun is higher. Depending on the model, from 4900 to 8900. And note that these are prices from the Internet, without delivery to Kursk. (Although no, I found one for 3950 rubles in Vladivostok ...)
In general, I began to look for something cheaper, but then they called me and offered a new OS-4 stove in a metal case for 4000 rubles. and a gazelle pump for 500 rubles.
Great, half the work is done - the most basic details are bought. Now we need to connect it all. Namely: connect the hoses to the stove radiator and pump, attach the pump and remove the wiring. And if it’s even more or less clear with connecting hoses, then fiddling with wiring is for me a dark forest with wolves. I am not friends with electrical circuits and I need not just a circuit like from a book, but preferably a detailed and understandable one.
I've been painted detailed diagram connection of the pump and stove at 2 speeds. The only thing I changed in the circuit is the "+" fuse. Instead of one for 15 A, I put two. Separately for the stove-10 A and separately for the pump-7.5 A.
I couldn't find his name, but anyway, thank you very much.
Here is the diagram:

Scheme of connection of the stove and pump.

Having bought in stores any small things like: 3 Zhiguli relays, 6 meters of hose for 16 for antifreeze, 6 meters of wire with a cross section of 2.5, 3 meters of wire with a cross section of 0.75, 20 contacts (mother and father), a heater button 82.3709-04.09, heat shrink different sizes (included) and a wiring splitter, I started installing the stove in the car.
Theoretically, I expected to put a stove between the front seats, but in a metal case, it did not fit there. The handbrake and the passenger seat interfered. I took the stove out of the protection and tried it on in the car. Fits. And due to the Y-shape, it does not rest against the handbrake, BUT ... It sticks out strongly from behind. One of the rear passengers is sure to touch the radiator with his foot. This means that the option of installing a stove without a case in a makeshift bar, like in the Patriots, also disappeared. The option - “under the seat” was swept aside immediately because of the narrow sled of the seat.
As a result, I had no choice but to start doing it myself. It was decided to raise the passenger seat and put the stove in the body as close as possible to the handbrake. She stepped under the seat just up to the sled. I fixed the stove like this:
on the left - with a handbrake bolt (this is where the ground wire came out),
on the right - on 2 self-tapping screws with a press washer.
I had to raise the front passenger seat by 1.5 cm. I lifted 5 washers under each bolt with the help of a lining. The washers are wide, I have been lying around for a very long time, so they came in handy. I don't even know what they are from.
The bolts for attaching the seat to the floor had to be replaced with longer ones, namely 50 mm. (native-35 mm).
I began to think where to put an additional pump. I read on the net that there are two main options:
1 - after the engine block. (at the entrance)
2 - In the return line of the system, after the saloon stove.
So, because of where to put the pump on the Internet, there are whole battles. The people bring a bunch of arguments in their favor, during breaks they wrap their opponents with dicks. There are physical laws, and the natural resistance of liquids, etc. etc.
In general, without really understanding anything, I decided to put the pump after the engine block. Removed the battery air filter and began to try on the pump. I tried it on taking into account the fact that the antifreeze hoses would not be bent when they go from the pump to the stove radiator. In general, after 4 hours of thinking and trying on, I found a place on the body of the battery socket.
I inserted the heater button in place of the rear dimensions buttons, slightly expanding the hole in the instrument panel. Anyway, I don’t have a rear clearance and the wiring from it is isolated and rolled up.
The stoves are connected in series:
Engine block - pump - main stove - additional stove - engine pump. (antifreeze hoses enter the stoves from below and exit from above.) Started it, warmed up the car, everything is fine, there are no leaks at the joints. The hoses of the second stove have warmed up, which means the stove will also heat up. I added antifreeze to the system, about 3 liters.
After that, I finished the wiring and connected everything to the battery. The stove blows great. At second speed, the hot air sways boots that are on the floor near the rear seats in case of mud.
How the pump works, I never heard, it does not make engine noise. Well, okay, these are trifles. I think I will if needed.
After work, there was still a meter of rubber hose. "Mom" had to be bought in addition, 5 pieces were not enough. The relay was marked with colored tape. Yellow-pump, green-stove.
And here's a photo of the process:
P.S. Continuation:
Ride today, wound 87 km. Traveled with one and two included stoves. It's really hot in the cabin! Even when operating only the front (native) stove at first speed. If you turn on two stoves, the son behind him starts screaming that he is hot.
If you drive with the stoves off, then the windows begin to sweat. The glass also sweats when driving with the second stove turned on.
In general, I am satisfied.

stove without frame

4

interior stove installation

7

8

pump installation

hose connection

2 speed switch

relay box and fuses

To install the stove, I had to buy a cone drill to make 2 holes for the inlet and outlet in the floor.
I marked large holes with a rubber band, and fixing holes with a piece of paranite. It would be possible to immediately mark everything with a paranit, but I did not immediately find it. The essence of marking the holes is to print the protruding parts of the stove on the paranite. Then just put it on the floor and drill holes. The main thing is not to confuse the direction of the stove.

It was not possible to clean the floor, water with mud froze tightly. The photo shows how he ran the wires to the remote control and the power supply of the stove with a pump

On my fuel diagram, you can see that there are 2 tank switches. One for supply from the left or right tank, the other also for the return. I put a tee on the supply that goes to the filter, connected the pump and ran all the pipes.

Everything is fully connected and checked the work. Now it's so hot in the car that even in a T-shirt and shorts go.

But after 3 days it stopped starting, it comes out of the exhaust White smoke, you can hear how the fuel ignites, but after two attempts to start it began to give error 13. I had to check the glow plug, but it was normal. Then I dismantled the stove, and in it, as in the EGR system, unburned fuel with exhaust flakes from a diesel engine turned into clods of shoe polish. I had to clean everything and reassemble.
When assembling the combustion chamber, the bolts of its fastening were found to be completely torn off. In the standard there are M5x10 under an asterisk. I went to the store, bought 6 M6x10 bolts for a hexagon, cut the thread into 6 and assembled it.

After a few weeks of testing, the stove still works great. And apparently it got dirty from the fuel when I tested it. Was wrong. Clogged from the addition of antigel. As soon as I stopped adding, the problem went away.

While the 514th diesel engine is outside the engine compartment, we decided to start modifying the native hunter's stove.
It's no secret that the native stove does not work with ice. Of course, you can replace it with a NAMI stove, but it takes a long time to look for it and the pleasure is not cheap. Therefore, on the Internet, an option was found to refine the native stove using two snails from KAMAZ (left 5320-8118027, right 5320-8118026) and squirrel wheels from the GAZelle assembly (3307-8101178). At the same time, they decided to replace the stove faucet, because the native one was leaking, and I wanted to adjust the temperature on the front panel, and not by crawling into the legs to the front passenger. For this, a set of crane and cable was purchased. Silumin faucet with a ceramic element (as it was written on the package). Of course, he did not become one on one and had to be finalized. From the building plate, they made the basis for the second tube (cut off from the old faucet), and bolts were screwed in as studs. Here is such a collective farm design turned out. She got into position:

adapter plate

Then they cut off the excess with a jigsaw. And they also dismantled the lower element of the standard stove and cut the bottom of the stove trough. Here's the build kit:

Assembly kit

Then the snails were installed on the plate, and for sealing they glued the noise, since the width of the plate is greater than the width of the flat part of the stove body:

Complete stove - top view

And front view:

Stove - front view

While the stove was removed Shumkov stuck on the engine shield behind the stove. There will probably be little sense, but Shumka remained :). In this photo, a modified faucet has already been installed in a regular place. And in the panel in front of the turtle, two technological holes were made so that you could normally tighten the upper bolts of the gearbox to the engine:

Stove noise.

Put the modified stove in place:

stove in place

But it turned out that the snails were placed not quite right. They can interfere with the legs. You will have to shoot back and turn the snails towards the engine compartment by 45 degrees, especially since there is a place there:

Snails must be trusted

After installing the snails in the correct position, it will be possible to install a cable for the faucet, assemble the electrical part and stretch the glass blower.

It ended up that the parallel installation of the snails was unsuccessful. The snails interfered with the navigator's legs:

Snails interfere with the navigator's legs

The stove was removed, the snails were unscrewed, the body of the stove was put in place and the position of the snails was already marked in place. For the pilot and navigator, the angle of rotation of the snail turned out to be different due to the displacement of the stove body relative to the central axis of the UAZ. After the new marking, the holes in the adapter plate were re-drilled and the snails were re-attached:

The new position of the stove snails.

Now the stove has become in place "like a native." No longer interferes with the legs:

The new position of the snails in the cabin

And about the Carlsons and the radiator:
For a long time they wanted to amputate the great viscous coupling and switch to electric Carlsons. Moreover, when overcoming fords, it is required to be able to stop the fans so as not to break off the blades. Fans from the VAZ 2108 were chosen as electric Carlsons. We immediately decided to install two for the reliability of the design and duplication. The original example looked like this:

Trying Carlsons

But the truth of life put everything in its place. When the fitting with the hulls was carried out, it became clear that such an arrangement would not work. After heated discussions between the pilot and the navigator, it was decided to couple the Kalson hulls at the same level, and make ears for the radiator. The hulls were coupled with the rest of the U-shaped aluminum profile. Moreover, a hairpin was screwed into the upper one for further fastening the clamp for wiring (we want to bring it up):

Linked Carlson hulls

Aluminum ears radiator

To prevent the Carlson cases from wiping the radiator, the sharp edges of the cases were pasted over with a U-shaped rubber band:

Elastic band on Carlson's body

Then all this was bolted together and this is what the radiator with Carlsons looks like:

Assembled radiator

This design fits perfectly into engine compartment:

Rating 0.00

The UAZ Patriot car has a fairly large and voluminous interior. This is a big plus when you need to transport things or carry passengers. But a large salon, in addition to amenities and comfort, requires considerable heating costs. The UAZ Patriot SUV from the factory is equipped with a standard interior heater, which, according to the manufacturers' calculations, should heat the entire area of ​​​​the car. Indeed, the heater copes with its task of heating the passenger compartment, but only if the temperature outside is not lower than -5 degrees. Especially the drop in temperature overboard is clearly felt by passengers who are in the rear seats.

Rear heater options

The UAZ Patriot car does not provide such a function as seat heating. The interior heater during its operation provides warm air mainly to the driver and passenger front seat. And if on the road and at sub-zero temperatures the only stove in the cabin fails to work, what then to do? To solve such problems, the UAZ Patriot SUV has special device, which is called the additional stove. This material will tell about it, and also consider the process of its installation and use.

Any stove can serve as a second heating, but it is advisable to use it more powerfully, so you can take the product, for example, from a Gazelle car. You can install additional heating on an UAZ Patriot SUV either on your own, which will require some knowledge, or with the help of a repair shop.

This is what the factory heater looks like.

The second heating allows you to provide in the cabin of the UAZ Patriot SUV not only a positive temperature, but also will not allow passengers in the back seat to freeze. Such an auxiliary stove is installed under the following factors:

  • if the UAZ Patriot car is operated mainly in regions where winters are especially severe and the air temperature reaches -20 degrees and below;
  • if at the same time you often have to use an SUV;
  • in the case of transporting children, for example, daily to school, kindergarten, etc.

Also, the driver can install a second interior heater if he feels that the regular stove cannot cope with its functions even with slight temperature drops. That, however, in this case, it is necessary to check the serviceability of the regular heater, but that's another story.

Operation and connection

If you decide to install additional heating in the UAZ interior, then you should know that the stoves should be connected in parallel. Parallel connection of the main and auxiliary furnace has the following advantages:

Pulling hoses around the cabin

  1. There is no additional load on the car's power system.
  2. It is possible to control devices independently of each other by installing the switch on optional equipment.
  3. Two functioning stoves will allow you to heat the interior in a matter of minutes.
  4. No need to worry about the passengers who ride in the back seat. After all, now the heat will come to them from below.

The use of another heater has many positive aspects, and most importantly, it provides comfort in the cabin during the cold season.

When installing heaters in series, we end up with one drawback - the inability to turn off one of the stoves. When it gets hot in the cabin, of course, you should turn off the heating, since overdrying the air is dangerous for the body.

It is recommended to place an additional stove in the following places: between the front seats; under the front seats. It all depends on the heater model that you choose for your UAZ Patriot car. There are many models of "seat" heaters in the car interior, but it is important to consider not only the performance of the device, but also the dimensions.

Thus, on the UAZ Patriot SUV, you can install a conventional radiator, which, perhaps, someone has lying around in the garage, or a special heater with a built-in fan. Consider the installation features of the product.

Mounting Features

Installation of an additional heater on an SUV is carried out in stages:

Antifreeze will circulate in the auxiliary heater, which is pumped by a standard pump. If desired, to ensure greater productivity, you can install an additional pump. This completes the installation and should consider some of the disadvantages of such equipment.

A little about the cons

Of course, the main purpose of the auxiliary heater is to provide comfort in the cabin by maintaining a temperature of at least 18 degrees when severe frosts. But, installing new equipment, there are such negative points:

  • in winter, the engine warms up more slowly;
  • the appearance of extra decibels of noise (from an electric fan);
  • the appearance of dust that will circulate through the cabin due to the operation of fan heaters;
  • heating the upholstery of the floor, where the hoses to the heater run, which will cause inconvenience in the summer. You can fix this problem by installing a tap on the hose going to the Patriot heater.

The ventilation and heating system for the interior of UAZ-31512, UAZ-31514, UAZ-31519 and UAZ Hunter vehicles is very simple and primitive both in terms of design and principle of operation. The heater with its simplest air distribution system simultaneously, in one way or another, participates both in the operation of the heating system and in the operation of the UAZ cabin ventilation system.

The standard heater for UAZ-31512, UAZ-31514, UAZ-31519 and UAZ Hunter cars is an extremely primitive installation, consisting of a box with dampers, in which there is a radiator, an electric motor with an impeller and additional resistance.

The simple air distribution system includes a mechanically controlled air intake, two windshield blower nozzles, two corrugated hoses and heater box dampers.

On UAZ Hunter cars, since 2010, a plastic box has been added to the heater design, Catalogue number parts 3151-8101231, which is installed between the air intake hatch and the heater radiator and is designed to collect and drain rainwater that enters the heater during open lid air intake hatch.

Rainwater entering through the air intake hatch into this plastic box drains out through a rubber hose passing to the partition of the engine compartment inside the cabin.

And water or condensate from inside the heater is drained through the second rubber hose located in the lower part of its body and also led into the engine compartment through a hole in its partition.

The installation of a plastic box 3151-8101231 greatly reduced the intensity of the incoming air flow into the cabin when the car was moving and worsened natural ventilation, but rainwater no longer gets on the hot radiator of the heater and does not form steam in the cabin, which settles from the inside on the windows. In addition, this box prevents most of the dust, sand and dirt from entering directly into the heater, and through it into the passenger compartment.

Interior ventilation of UAZ-31512, UAZ-31514, UAZ-31519 and UAZ Hunter cars.

The car has natural and forced ventilation. With natural ventilation, air enters the cabin through open rotary vents or door windows. While the car is moving, the air flow additionally enters the cab through the air intake installed in front of the windshield. The air intake is opened by a lever mounted to the left of the heater.

With the windows closed and forced ventilation, air is blown into the UAZ cabin by the electric fan of the heater without heating it. The air passes through the air intake, the disconnected heater radiator, the fan and exits into the driver and front passenger footwell area, as well as the central part of the cabin to the rear seats. In addition, air enters the windshield blower nozzles through corrugated plastic hoses.

The intensity of forced ventilation of the passenger compartment with the windows closed is regulated by turning on the heater electric motor to one of the modes, as well as by adjusting the amount of lifting of the air intake hatch cover.

Practice shows that the capabilities of the standard ventilation system with the windows closed are very limited and it does not work efficiently, there is no normal air circulation in the cabin, which leads to permanent windows. Therefore, like everything in UAZ, it is desirable to modify the ventilation system in some way, one of the options for such refinement is considered in.

Heating of the interior of cars UAZ-31512, UAZ-31514, UAZ-31519 and UAZ Hunter.

The UAZ interior is heated by heated air entering inside in the same way as with forced ventilation, but with the heater radiator turned on. To regulate the flow of hot liquid from the engine cooling system to the heater radiator, a tap is used, which is installed on the cylinder head in cars with the UMZ-417 and UMZ-421 engines, or located inside on the front panel on the front passenger side, in cars with the ZMZ- 409.

In UAZ Hunter cars with a ZMZ-409 engine, to simplify the procedure for controlling the heater tap, you can install a system for it remote control. More on this in a separate .

When the control valve is open, the liquid from the engine cylinder head enters the heater radiator and then is discharged to the water pump, forming a small circle of circulation parallel to the main flow of liquid in the system. Fresh air from outside, through the air intake hatch, passes into the heater box, then by gravity, or forced by the fan, through a hot radiator, it enters the cabin already heated.

The flow of thermal air passing through the radiator is distributed to blow the windshield, heat the legs of the driver, front passenger and through the central part of the cabin to the rear seats. The air flow can be completely directed to blowing the windshield, for which you need to close the front cover of the heater box and the dampers on the pipes of the lower air distribution ducts.

The amount and intensity of heated air entering the passenger compartment is regulated by the opening of the air intake hatch cover and the heater fan speed. The heater motor switch can be used to select one of two modes of its operation - the minimum or maximum fan speed.

The UAZ interior heater works effectively only if the temperature of the liquid in the engine cooling system is at least 80 degrees. In the cold season, to increase the temperature of the coolant, it is advisable to install an insulating cover on the radiator lining on a UAZ Hunter car, and on UAZ-31512, UAZ-31514, UAZ-31519 cars, regulate the air flow using the radiator shutters.

Refinement and improvement of the design of the UAZ Hunter heater, selection and replacement of the electric motor, seasonal service heater.

Like any primitive design, in order to increase work efficiency, the standard heater UAZ Hunter needs to be improved and some simple refinement. One of options such refinement, as well as seasonal maintenance of the heater and air distribution system, are discussed in more detail in a separate.

A large amount of space in the car has both pluses and minuses. An indisputable advantage, of course, is the free location of passengers (of different weight categories), the ability to transport a large amount of cargo at a time. But one of the minuses manifests itself in the cold season, when the thermometer drops below the minus mark. This is especially felt by residents of regions with severe winters, where the temperature in winter rarely rises above -20 ° C.

The need for an additional heater in the cabin of the UAZ Patriot

Although the UAZ Patriot is equipped with a very good heater from the factory, due to the large volume of the passenger compartment, rear row passengers often experience discomfort when traveling long distances in the cold season. You can get out of this situation. In fairness, it should be noted that if the windows fog up in the car or the standard interior heater does not heat well, then this is a stove problem, and first you need to solve it, and only then think about installing a new one. This method of creating additional heating is also suitable for those who often transport children to back seat your car. Then the question arises: which stove to choose for heating the UAZ Patriot? To do this, it is better to use the "native" Patriot one, which is installed in more expensive trim levels. She fits in perfectly. You can buy a new one or search on secondary market. But you can choose any other analogue, of which there are a great many on the market. An additional stove for the UAZ Patriot must have a radiator and a motor with a fan (12 V). You can install it both on your own and using the services of specialized services.

Installation

If you decide on your own, then, first of all, you need to determine the installation location. It can be determined either under the passenger seat or between the front seats (the standard stove is installed exactly between the driver's and passenger's seats). Next, you need to purchase everything you need (hoses, clamps, bolts, etc.). When everything is acquired, you can begin. We are offering to you detailed instructions to install the stove on your own:

  1. Choose a place and fix the heater (for convenience, you can dismantle the front seats).
  2. Next, you need to drain the coolant from the engine cooling system.
  3. Then you need to connect the heater to the engine cooling system. This can be done both with the help of pipes from the Patriot in the Limited configuration (which have branches for), and by connecting with a tee in engine compartment, with a coolant supply line to the main heater.
  • when choosing the first option, it may be difficult to purchase tubes, since they are not sold separately, but are assembled with the climate system, they can be purchased at the "disassembly";
  • if you choose option number 2, then you need to bring the hoses under the hood, cut aluminum tubes and connect through a tee, in series with a regular stove.

  1. To conduct lines through the cabin, it is necessary to remove the floor upholstery and lay them so that they do not fray or bend during operation. Plastic clamps must be used to secure the hoses.
  2. Next, we connect the rubber hoses to the heater, using clamps to connect.
  3. Then you need to connect the power supply to the new unit. For this:
  • disconnect the car from the power supply (by removing the terminals from the battery);
  • we will find a free connector in the electrical wiring and, after checking the presence of power in it, we will connect to it;
  • for convenience, you need to equip the stove with your own separate switch and place it in a place convenient for you.
  1. Now you can proceed to fill the cooling system with liquid (note that liquid will require more) and remove all air from the system.
  2. Before proceeding with the final assembly of the heater, it is necessary to check all connections for fluid leakage and the operability of new equipment.
  3. Next, you should return all dismantled parts to their place.

On this, the installation of the UAZ Patriot interior heater can be considered completed. It would be useful to mention those disadvantages that may arise after installation:

  • the appearance of an additional;
  • the engine will warm up a little slower than usual due to the larger amount of coolant.

Otherwise, you can only enjoy the warmth and comfort that the new stove will bring. If all of the above disadvantages do not scare you, then you can install it yourself. Also, this unit will be a good help at the moment when the main stove fails.