Quite a sensitive issue related to water supply in modern houses. Drain water from the boiler, which is located in the storage electric water heater . There is nothing complicated, but for the sake of presentation it is advisable to know the structure of the entire system.

Boiler system, diagram

Everything is in order

The storage water heater is equipped with:

• enameled tank (sometimes stainless steel is also available);
• internal tubes;
• TEN with thermostat;
• automatic air vent.

Typically, the tanks inside such a device are designed for a specific pressure. Approximately 7 to 10 bar. It turns out that the boiler device is a kind of vessel that operates under pressure. And since there is still liquid left there, you cannot simply drain it by opening the valve. Because without air supply, only part of the liquid will flow out from behind the vessel. The water located near the hot water pipe will drain away.

How to properly drain water from a boiler fully? This is possible only when air is supplied to the system. This procedure is performed through hot water supply. Let's look at it step by step:

1. You need to close the valve cold water to the boiler.
2. Open the hot water (faucet, for example, in the bathroom) and gradually release the pressure.
3. We take a small Phillips screwdriver and twist the flag that is attached to the cold water safety valve. The valve itself supplies fluid to the device.
4. After twisting, you need to lift the flag and at the same time prepare a container into which the liquid will drain. Place the container under the safety valve. Sometimes professional installation already means a tube inserted under the spout. It must be tied to the sewer.
5. IN best case scenario There should be enough atmospheric pressure to allow the liquid to move due to air suction through the hot water supply pipe. Visually this can be heard by the movement of bubbles inside the tap with hot water. Here the system is already prepared, and is it necessary merge gradually, changing the container under the boiler (you can open and close the safety flag). But often atmospheric pressure fails.
6. We have to do some disassembly. It is necessary to treat the nearest connecting part from hot water to the boiler. It is good if the disassembled connection does not come out of the device.
7. There are models that cannot be disassembled. In this case we are looking for rubber hose suitable diameter. We put it on the tap that is closest to the water heater. Next, we blow into the hose so that the remaining water pours into the boiler. Sometimes a pump or compressor is used, but this is more complicated.

Boiler system

Judging by the cycle of work, it is better to install a water heater with easily removable connections in advance. This is very convenient at dachas, where during the lower season you have to drain it into water. Resourceful users install a tee in advance to drain the water.

Another tip! The heater has a tube with cold water, it is not located at the very bottom. Therefore, when draining, some liquid may remain. It is better to be aware of this when leaving the device on winter time in an unheated room.

completely, without leaving a drop? You can get the job done just by unscrewing heating element. Whatever goes through the tube will go through the mounting hole.

How to drain water from an Atlantic boiler

Working with this company is standard. Let's figure it out how to drain water from the boiler:

1. Turn off the water heater and wait until the water cools down. This is simply for the safety of the user.
2. We turn off the tap that is responsible for supplying cold water to the device itself.
3. You need to open the hot water valve and turn the lever to the desired position. The task is the following - we relieve the pressure by supplying air.
4. Close the hot water tap located on the pipe. This will allow air to enter the boiler itself.
5. Open the drain valve located on the cold water pipe. Next, we put a drainage hose into the boiler and drain all the water from the boiler without any residue.
6. We check the work. All water must be drained; this is very important for an appliance in a country house or in a private house. Otherwise, a breakdown or short circuit cannot be ruled out.

Draining water from the Gorenje boiler

Draining the liquid is even easier for this company:

1. Disconnect the water heater from the network. And open the hot water supply valve.
2. We wait for the hot water to flow completely and connect the hose to the tap where the cold water is. We take the other end to the sewer drain or just with a bucket.
3. You need to open the drain and again reduce the pressure due to air. Then the entire boiler will simply leak. The whole procedure will take place fast , takes no more than 10 minutes.

For your information! Sometimes water is drained from boilers of this company using a safety valve. And they use it most often, because this method is even simpler.

Why do you drain the boiler at all?

Results after cleaning the boiler

Let us list all the main cases so that drain liquid:

1. If the boiler turns off before the onset of winter, it is advisable not to drain all the liquid from the tank completely. When the boiler itself is not afraid of frost in the future, it is best to leave a little liquid inside. This approach protects the tank from the growth of corrosion. And water will also come in handy in case someone accidentally turns on the boiler. After all, an empty tank will instantly heat up and a fire may occur.
2. When the devices have been turned off for some time, and the liquid in it has become slightly stagnant, it is also not recommended to drain it completely. Stagnation is best updated by adding until the tank is full. The boiler needs to be maintained once every three months; it must run at least 80-100 liters through the system.
3. When the device is still under warranty, you can even do it yourself minor repairs not recommended. Otherwise, the warranty is simply lost. When a problem arises with the boiler, be sure to wait for specialists. The craftsmen must drain the water themselves and fix the breakdowns, because these procedures are free under warranty.

Results

In case of drainage, the following actions are required for any brand of water heater:

1. Disconnect from power before starting work.
2. Shut off the water supply from the water supply network to the heating system.
3. Existing hot water cannot be drained. This is very dangerous.
4. Only after cooling, the pipes supplying cold and hot water are removed.
5. Drain water without problems, observing all points.

This procedure must be repeated if the room temperature drops by 5 degrees or more. At the same time, this procedure should be done especially carefully, since there is always a danger that the liquid will freeze in the tank and pipes and an explosion may occur.

If the temperature is above 5 degrees, it is not recommended to use the water heater for cleaning. Manufacturers of such devices say that it is better not to drain the water and not leave the device empty.

If you do not listen to the advice, processes will occur in the pipes and in the boiler that have a bad effect on the materials used in the manufacture of the heating tank.

How to do it yourself?

Before draining the water yourself, unplug the heater from the outlet.

1. After turning off the water heater, wait until the water in the tank is not hot, but becomes slightly warm. This will prevent you from getting burned while draining the water.
2. Turn off the faucet, which supplies cold water pressure to the water heater.
3. Open the hot water valve and turn the lever to a special position that will relieve pressure in the heating container. Wait until water flows out of the pipe.s
4. Close the tap, which takes place on the pipe from which hot water is supplied. This is done to ensure air flow into the tank.
5. Open the drain valve, occurring on the cold water pipe leading to the water heater. Afterwards, you should connect a drainage hose and drain the liquid into the sewer.
6. Make sure all water has left the tank. Do not forget that the water heater is not allowed to be plugged into the outlet empty, that is, without a minimum amount of water. This may cause damage to the device or cause a fire.

To drain the water from the boiler, you will need an adjustable wrench and a drain hose. The key must be selected independently, according to the nuts holding all the valves on the pipes.

Location of drain valves:

After preparing all the tools, get to work:

1. Turn on the hot water tap and let it drain completely. How much time you have to spend depends on how much hot water is left in your boiler.
2. Afterwards, turn the tap on tightly.
3. Find the nut holding the safety valve in place. It is located on the hot water pipe. You will only be able to unscrew it if you use an adjustable wrench.
4. Prepare a hose for draining water. You should lower one end of it into the container into which you are going to drain the water. The other end must be kept ready.
5. Unscrew the valve and remove the cold fluid pipe. Afterwards, you should refill the hose. The main thing here is to act quickly, because the remaining water from the boiler will pour out of the pipe.
6. The same thing should be repeated with the cold water pipe. However, before you start draining, you should make sure that the hot water has already cooled down sufficiently.
7. Before starting the boiler, make sure the tank is completely full.

If your water heater is located in the bathroom, you will be able to avoid using a hose and pull the pipes to the sewer. You just have to think about what length of tubing to use in advance.

Please take into account the fact that water heaters come in different sizes. They can also connect in different ways. It is worth using the instructions that came with your unit.

How to clean?

heating element

Before you start cleaning the boiler, you need to unplug it and give the water time to cool. If the water heater was connected correctly, then there should be no problems with cleaning.

You are in luck if the boiler is installed above the bath, as it will not have to be removed.

In this case, cleaning can be done right on site:

1. It is necessary to turn off all taps supplying water.
2. To drain the water, you need to screw on the shower hose. This will prevent water from splashing and help direct it to the drain hole baths..However, this is not necessary.
3. Unscrew the fastening screw using a screwdriver and a protective plastic casing.
4. Remove the protective cover.
5. Pulling out the wires after unscrewing the screws.
6. Make sure that all the liquid is drained from the tank.
7. Gradually unscrew the nuts using a wrench.
8. Carefully remove the heating element(). There may be a lot of rust, sand and debris on it.
9. We remove all garbage. As for scale, it can be removed with Coca-Cola.
10. Washing the heating tank from dirt.

Draining water from boilers of popular manufacturers

Remove liquid from, Thermex, Atlantic and Burning can be done in three ways:

1. Method 1. To remove liquid, use a pipe or tee. The water is turned off according to the instructions, and in order to allow the water to drain completely, you need to open the tap, which is located between the diverter valve and the pipe.
2. Method 2. Draining water using a trigger lever. It is located on the safety valve. In order to drain the liquid from the boiler, the lever must be bent. Sometimes a long hose is connected to the edge of the valve, with which you can drain water into the sewer through the toilet, sink or bathtub.
3. Method 3. It is used only in cases where the heating device has a check valve installed to reduce the pressure in the boiler. You need to unscrew it very carefully, because if there is a lot of water in your boiler, the pressure will be quite strong, and then weaken.

If liquid does not drain into the water heater when the valve is open, you will need to reconsider the wiring. Air can enter the tank if there is open wiring. Use a hose to make draining easier.

After reading the instructions that came with your heating device, you should familiarize yourself with the advice of professionals who are well versed in the design of the boiler.

At the installation stage you need to be especially careful. After the shut-off valve and before the American valve, install a drain valve. Thanks to this faucet, you can make a normal drain of water from the water heater. It's very simple - this faucet will allow you to drain without much effort.

Experienced plumbers advise:

1. It’s worth starting work by de-energizing Since you are working with an electrical device, you need to follow safety precautions.
2. In order not to get burned, the liquid must be cooled to room temperature before draining.
3. If you do not plan to use the heating device for a long time, then ice may form inside the container, which, when heated, will rupture the water heater.
4. To prevent the water inside the boiler from becoming moldy., you need to run cold water through the device once every two months - this way you can clean it.
5. To warm up the water, the device is connected to the network.
6. Never plug in an empty water heater.

If you take into account all the comments and recommendations, you will be able to drain the water from the boiler yourself and clean it of any type of contaminant. You should know that if you don’t rush and do everything according to the instructions, you won’t need to call a specialist home and pay him money.

Make sure you have everything necessary tools, and then start working.

Clean according to the brand of boiler installed in your house or apartment. Even though they are all similar, expensive models They have a slightly different connection system and draining water from such devices is much easier. Do not forget about safety measures and everything will work out for you.

Almost everyone who owns an electric heating tank sooner or later faces the question of how to clean it from scale. Due to the increase in fees public utilities, and for hot water supply as well, more and more residents are buying water heaters to constantly supply hot water to their apartment or house. The boiler is easy to use, does not take up much space and allows you to use it at any time.

Is it possible to drink water from a boiler: operating principle and design of the device

During operation in pipes, due to low quality scale forms in the water. This leads to excessive resource consumption and, ultimately, complete failure of the heating element. In order to protect your home from such a situation, it is necessary to systematically disassemble and clean the heater from scale. Today, in many apartments and houses, closed pressure-type water heating devices are often used for hot water supply systems. It is connected to the water source, as well as the consumption system by connecting water pipes, through the constipation organs.

You can drink the water from the tank, as well as use it for other purposes, but you must properly and carefully care for the water heating device.

One of the main conditions for caring for the tank is timely draining of water. Depending on the quality of the connection, the method of emptying the tank is also chosen. Experts have recommendations that determine when exactly you need to drain the water from the tank. As a rule, this is first of all renovation work. Also, the boiler must be turned off when there is a break in its operation.

Prerequisites for draining water:

• If the device long time costs in unheated room at temperatures below 5 degrees;
• In case of replacing a heating element made of titanium or magnesium anode;
• For scheduled or emergency cleaning of the tank;
• If the tank spits, becomes airy or leaks.

However, there are a number of cases when experts do not recommend draining water. These moments include fluid stagnation. If this problem affects you, then it is better to distill cold water through the boiler several times. Also, you should not flush the water if your device is under warranty.

Why do you need to drain the water from the boiler if the water heater breaks down?

Another, most common case for draining water is coming its breakdown and forced transportation to a service center. But, if your device is still under warranty at the time of the malfunction, then it is better not to touch it, but to call specialists from the service center. Very often, repairs of such equipment are carried out on site.

However, if the warranty period has already expired, and specialists do not want to come to your home, then you need to transport the water heater to the workshop yourself.

In order to properly drain the water from the tank and transport it, you must refer to the instructions. Responsible manufacturers always contribute to technical documentation all aspects and order of service. If they are not there, then the best solution will listen to the advice of experts.

Water can be drained from the storage tank in several ways:

• If the valve and pipe are located separately, and there is a tee with a tap between them, the water must be turned off at the very entrance to the water heater, and then open the tap, which is located in the middle.
• When on protective device your water heater has a trigger - a special lever, similar to a trigger, which, when pressed lightly, the water is easily drained.
• When the water heater check valve is carefully unscrewed counterclockwise and the water flows out by gravity. IN in this case The difficulty will be to ensure safe drainage of the liquid into prepared containers or sewers.

In this case return valve You don’t have to connect it to the input of the heater itself, but place it in the space after the cold water meter. With this mounting, the return valve will prevent the water in the tank from going back into the pipes, and will allow it to fill the tank in the flush toilet by gravity.

Let's figure out how to drain water from the boiler and why to do it

Modern water heating devices are household electrical appliances that can provide hot water to residents settlements around the clock. At the same time, they do not require any special care. Draining water from boilers of popular companies like Ariston, Electrolux, Termex or Atlantic is not a particularly complicated procedure, but requires certain knowledge and skills in working with electrical appliances similar type.

If a high-quality device is provided with normal operating conditions, and the heater is able to operate properly, draining water from the unit is not required at all.

However, in some cases it is impossible to do without draining the water from the boiler, and this must be done without damaging the device and property in the room. At the same time, you should also distinguish when the drain is absolutely necessary, and when the heater can be left alone.

When you need to get rid of water in the tank:

• If the device fails and needs to be disassembled;
• If necessary, transport the product;
• In case of repair of the water supply system to which the boiler is connected;
• When unwanted impurities get into the water;
• The hot water in the tank runs out quickly;
• The air temperature in the room dropped to +5 degrees.

And remember at the same time that spontaneously draining liquid from the “container” located on warranty service– highly not recommended! After this, even companies such as Gorenje, Thermex, Ariston may refuse warranty service.

Cleaning the boiler: how to empty the water from the water heater

In order for your boiler to serve you for many years, you need to clean it regularly. Ideally, this should be done 2 times a year. Some modern models Once is enough. This depends on how often you use your boiler and the quality of your tap water. If you do not carry out this procedure at all, then corrosion may begin inside the device, as well as oxidation of metals, after which scale will form.

To minimize breakdowns, when choosing a unit, ask consultants about what thermostat is present in the boiler.

It is better not to buy water heaters with this element made of ferrous metals; they clean rust disgustingly and recycle water terribly.

So, let's clean our water heating tank:

• Turn off the power supply to the water heater;
• After removing the cap from the bottom of the tank, unscrew the wires;
• At the next stage, you need to tightly fit the hose onto the drain valve;
• Lower the other end into the connection with the sewer, water will drain there;
• Close the valve and unscrew the cold water pipe.

If you live in an apartment, then before all actions, turn off the tap that closes the water supply to the room. When performing work, be vigilant, make sure that liquid from the tank does not flow onto the floor and flood the neighbors below.

Restoring your boiler after repair: how to get water again

After we cleaned the heating element and did other manipulations with the tank, let's install it in place.

After installing the unit in its place, we connect all the pipes or flexible hoses. In this case, the gaskets must be replaced with new ones.

After restoring the technical part, it is necessary to restore the electrical filling of the boiler, or, as the instructions say, the water heating tank. And after that we move on to the procedure of filling the tank with water.

First, we do a little testing and then fill the container:

• We set the temperature regulator to the extreme left position, connect the boiler to the mains;
• We set the regulator wheel to the middle position, after which the light should light up and heating should begin;

If everything is fine, then our test is completed, and we turn the adjusting wheel to the extreme left position, and then remove the plug from the socket.

How to drain water from a boiler (video)

Gradually we begin to fill the tank with water. This is done as follows: open the hot water tap on any of the consumers, open cold water into the boiler, carefully check all connections, and, if necessary, eliminate leaks. At the moment when the water begins to drain from the hot tap, close it. We turn on the boiler and set the temperature regulator to the middle position. The boiler should hum and the light should light up.

Boilers – great solution for those houses and apartments that do not have centralized hot water supply. Such devices provide residents with 24/7 warm water and do not require complex care. Only occasionally do you have to drain the water from the boilers and clean the containers from the sediment that has formed.

Briefly about the boiler design

Before you start draining the water, you should study the structure, design features and operating principle of the boiler. Such information is usually contained in the instructions for the water heater. Let's take a closer look at what a boiler is and how it works.

The main structural part of the boiler is storage tank, made of metal: stainless steel or ordinary steel with an enamel coating applied to it. The tank is equipped with two tubes, an air vent and an electric heater. So that the water in the container remains for a long time high temperature, the tank is insulated with a layer of thermal insulating material. This entire structure is enclosed in a common housing, and in order for the boiler to operate in automatic mode, the device is additionally equipped with a thermostat.

Boilers come in different capacities. Small water heaters, as a rule, do not have a drain hole, and water is supplied from above. Draining water from such a container is quite simple; you just need to remove the tank and turn it over.

Advice: when choosing a water heater with a small volume, evaluate the ease of use of the device and give preference to those models from which it will be easy to drain water.

Large boilers are often equipped with a drain hole, but emptying such heaters is more difficult than in the case described above. If you simply close off the access of cold water to the container, and then open the tap to drain the hot water, the liquid will not flow out completely, but only to the level where the highest point of the hot water supply tube is located. The water can be completely drained only if air gets inside the boiler.. To empty large water heaters, the inlet and outlet openings of the structure are equipped with tees with taps.

Schematic illustration internal structure boiler

Why do you need to drain the water and when is the best time to do it?

Water from the boiler must be drained in the following cases:

1. If the water heater is located in an unheated area, the tank must be emptied before winter arrives. With the onset of frost, the liquid will begin to turn into ice and increase in volume, which can lead to serious damage to the device and loss of its functionality.
2. If the warranty period for the boiler has expired, and the structure needs to be repaired or the magnesium anode replaced, the water must also be drained. All such procedures are carried out only with a dry and clean tank. It is worth noting that during the warranty period you cannot carry out repairs yourself, otherwise the warranty will become invalid.
3. At least once every 5 years, the water heater must be descaled. If the water supplied to the tank is no different good quality, it is advisable to carry out such a procedure more often. The sediment that remains in the tank interferes with the rapid heating of water, which means that the boiler consumes more electricity to operate.

Now I would like to consider cases when there is no need to drain water from the boiler:

1. When turning off the water heater during the warm season, it is not recommended to drain all the liquid from the tank. If the device is not threatened by frost, it is better to leave some water in the container - this will protect the interior of the tank from corrosion. In addition, if, out of forgetfulness, you plug in an empty boiler, a fire hazard may arise..
2. If the device has been left unplugged for some time and the water in it has stagnated, it is also not worthwhile to completely empty the container. Stale water simply needs to be refreshed by filling the tank full several times. It is advisable to repeat this procedure every 3 months, running 100 liters of cold water through the heater.
3. If the unit is still covered by the warranty, it is highly not recommended to drain the water, much less repair any parts yourself. In such a case, the warranty will become void. If problems arise with the boiler, it is better to simply call qualified specialists. They will drain the water themselves, fix the breakdowns and do it for free.

To drain water from the boiler, you can use suitable container

Draining water: necessary tools

The principle of draining water from boilers different manufacturers is generally similar, and the main working tools are an adjustable wrench and a rubber hose. When working with Ariston water heaters, you may also need screwdrivers, a hexagon, wrenches. If the hose will not lead into the bathtub, you should prepare a large container into which the water will drain.

Preparing the boiler for draining water is as follows:

1. Like any device that runs on electricity, the water heater should first be disconnected from the power supply.
2. Then you need to shut off the water supply from the water supply to the boiler.
3. Do not drain hot water from the tank, as this can cause injury. Therefore, the boiler must remain turned off for some time so that the liquid in it has time to cool.
4. After this, you need to remove the cold and hot water supply tubes from the water heater.

Please note: when putting the device into operation after draining the water and removing sediment, it is important to make sure that the container is filled with fresh water. Connecting an empty water heater to the network is fraught not only with damage to the equipment itself, but also with the risk of a fire.

Instructions

Emptying the Thermex water heater tank

The process of draining water from a Thermex boiler consists of several stages:

1. First, prepare the necessary tools: a gas adjustable wrench and a rubber hose. Using a wrench, close the cold water supply pipe to the tank.
2. To prevent a vacuum from forming inside the container, open the hot water tap on the mixer.
3. Drain the water until the arrow on the boiler reaches the zero mark. When this happens, close the hot water tap.
4. In the place where cold water enters the tank, unscrew the nut check valve using an adjustable wrench.
5. Connect one end of the rubber hose to the cold water supply pipe. Lead the second end of the hose into the sewer or into a previously prepared container. Disconnect the hot water outlet from the unit. When you do this, water from the tank will flow through the hose.
6. Unscrew the nut that secures the hot water outlet. After this, air will begin to enter the boiler, and the tank will empty completely. It happens that water does not immediately begin to flow out of the container; in this case, you need to blow into the hose.
7. After draining the water, screw back all the unscrewed nuts.

Accompanying video

How to remove Electrolux brand from equipment

The advantage of Electrolux water heaters is their economical heating mode, which prevents the formation of scale on inner surface tank. It is best to drain water from such boilers using a check valve located on the inlet pipe. Let's look at the process step by step:

1. First you need to shut off the cold water supply to the tank by tightening the appropriate valve.
2. Then you should put a hose of suitable diameter on the drain hole of the safety valve, and lead its other end into a prepared container or into a sewer drain hole.
3. Then you need to open the hot water tap on the mixer. The flag located on the side of the protective device should be raised so that water begins to flow out through the drainage hole.

As when working with other water heaters, the Electrolux boiler must be disconnected from the power supply before starting work.

Emptying the Ariston heater

To empty the Ariston water heater tank, you will need not only an adjustable wrench and a hose, but also a straight screwdriver and a 4 mm hexagon. We will describe the process of emptying the container step by step:

1. After disconnecting the boiler from the power supply, close the tap valve for supplying cold water to the tank.
2. To equalize the pressure inside the unit, unscrew the hot water tap.
3. Now you need to make sure that air gets inside the boiler. To do this, open the tap on the pipe supplying hot water from the boiler.
4. Connect a rubber hose of a suitable diameter to the device, open the water drain valve and empty the tank completely.

Video hint

Correct emptying of the Gorenje boiler

The principle of draining water from a Gorenje water heater is similar to the cases described above, the whole process consists of the following actions:

1. First, the boiler is disconnected from the power supply. Then open the valve on the hot water mixer.
2. After waiting until the hot water has completely flowed out, a hose is connected to the cold water tap, the return end of which is led into sewer drain or in any suitable container.
3. By opening the drain valve and ensuring air supply to the tank, the boiler is emptied. This process takes about 10 minutes.

The water from the Gorenje heater can be drained through the safety valve. Many people use this in a simple way, but this process takes a lot of time.

Please note: on some boiler models, the safety valve is not equipped with a special flag. In this case, you need to find a spring inside the valve and press it out using a tube. Under no circumstances should the valve be unscrewed.

Removing sediment

During operation, sediment forms in the boiler, which must be removed periodically

During boiler operation tap water leaves on internal elements unit limescale. As such deposits accumulate, they complicate the operation of the device and slow down the heating of water. Among other things, rust can form in the boiler tank over time. It is best to remove such sediment during the next draining of water from the heater.

Cleaning the boiler from sediment is carried out as follows:

1. First, remove the protective casing from the water heater. After this, turn off the power to all electrical wires in the device.
2. Using a gas wrench, unscrew union nut holding the heating element.
3. By swinging the heating element from side to side, you will release the water along with the sediment present in it. Do not forget to place a suitable container under the boiler into which the water will drain.
4. After this, remove the tubular heating element. Through the resulting hole, inspect the internal cavity of the boiler and remove all accumulated contaminants from there.
5. Open the shut-off valve slightly and let some water into the system to flush the device.
6. After the work has been done, reassemble the boiler parts, fill it with water and plug it into the network.

Advice: when cleaning the boiler, carefully inspect the heating element. If simple cleaning does not allow you to bring the heating element into proper shape, it is better to dismantle the heating element and install a new one in its place. Such a part is not cheap, but it is not recommended to skimp on it.

Video: cleaning a water heating structure

When draining water from the boiler, take your time and perform the steps in the correct sequence. Do not forget to disconnect the device from the power supply, and also allow hot water cool well.

When it becomes necessary to drain water from a water heater, many people at first glance find this problem funny. But when it comes to practice, home craftsmen have a lot of questions. Common mistakes and unforeseen difficulties can be avoided if you have at hand detailed description the entire draining process.

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Storage tank design

A water heating device is present in almost every living space. Its full and uninterrupted functioning is ensured by correct use and timely service. Many manufacturers in the operating instructions for the device strongly do not recommend draining water from it unnecessarily and leaving it empty for a long time. The air present inside the equipment negatively affects the inner surface of the tank and worsens the condition of the heating element.

There are expensive water heaters made of stainless steel. They are usually equipped with dry heating elements having ceramic durable coating, resistant to prolonged contact with air. As for budget options boilers, they are deprived of such protection, remaining without water for a long time. Subsequently, such devices need to be repaired or completely replaced.

How to EASILY drain water from a boiler (water heater)!



The need to drain the liquid

Complete emptying of the heating unit capacity is carried out if the room is in winter season is not heated (for example, a country house for temporary residence or rarely visited residential property with average temperature below +5 °C). This mode can lead to freezing of water in the pipes, which is common cause damage internal filling tank and trim. Draining the water from the boiler and completely shutting down the system would be the best option.

When temperature regime remains within normal limits, but the device is not used for a long time, the water in it should be changed periodically. It will be enough to open the hot tap on the mixer for 5 minutes and the contents will update on their own.

Complete emptying of the tank is mandatory during routine cleaning of equipment. This event is performed 2 times during the year when using a centralized water supply without pre-treatment, and also once a year if the water first passes high level processing.

How to drain water from a boiler

During operation inner part the boiler becomes covered with scale and dirt. This layer settles on the walls, bottom and heating element, creating a certain heat insulator. The situation is aggravated by the fact that the heating element will overheat during operation, while the water will not reach the required temperature and will be supplied barely warm. With increased electricity consumption, the boiler shows minimal efficiency. The way out of the situation is to drain the tank and dismantle the heating part, followed by descaling. As a result, the equipment will begin to work in full mode and will last for a long time.

You can't do without emptying the boiler, if any of its functional parts have expired the warranty period. Repair or replacement of the problematic element is carried out only with drained water, which, upon completion of all measures taken, is pumped back into the connected system.

The reason for lowering the water heater is the formation unpleasant odor emanating from the container. The reason for this is irregular or infrequent use of the unit. At the same time, the water silts up and creates a characteristic odor; when it is completely replaced, the problem is solved on its own. You cannot do without emptying the tank if you transport the boiler or carry out repairs.



No need for descent



It is not always necessary to remove the contents of the water heater. When storing the unit for summer period It is recommended to keep a small amount of water in it. This prevents the formation of “early” corrosion and prevents combustion of the unit if the owners inadvertently connect it without first filling it.

If you want to change the contents of the tank after long-term preservation of the system, it is not recommended to carry out a complete draining procedure. It will be enough to refresh the water in the tank through the tap several times, which experts recommend doing once every couple of months, passing about 100 liters of water (alternately cold and hot) through the unit.

If the boiler is under warranty service, you should not act unauthorized and carry out any manipulations with it. Service center will refuse repairs if the water heating system is leaking.

Drain the water from the boiler, water heater THERMEX IF 80 V - Part 2. Flow-through flushing of the boiler.



Start of the process

Before deciding how to drain the water from a storage water heater, you need to familiarize yourself with several popular methods of this process. First of all, the unit must be turned off from the power supply. This will help prevent equipment short circuits and possible injury to the technician.

Next, the supply of liquid to the working container is shut off through the valve, and the boiler itself is left in this state for some time to cool completely. The next step is to remove the cold and hot water pipes, after which you can proceed directly to emptying the tank.

Popular methods

There are several methods to drain a water heater. Complexity does not arise in any of the cases, and each of them comes down to a single principle. The differences lie only in design features operating units.

The work process does not take much time, but maximum accuracy and caution will not be superfluous. Taking into account some nuances and advice from the experts, draining the tank yourself will be hassle-free and will not negatively affect the further functioning of the heating device.

Working with safety valve

When installing a boiler into a common communication system, it is necessary to ensure that there is a safety drain valve. Its standard location is the area on the hose or pipe for cold water in front of the entrance to the container. This valve is used for emergency drainage of water from the water heater.

Such emptying of the container is spontaneous if the internal pressure of the boiler exceeds the permissible maximum. As for the emergency tap itself, it is better when it is supplemented with a screw-type handle with an extension, to which a drain pipe is quickly connected.

The functionality of the described unit must be checked regularly. The procedure is extremely simple: the valve turns, and after a while water appears, coming out in an even stream under pressure. It happens that liquid is supplied through an open emergency valve. unevenly or not at all. In such a situation, you should check the faucet for blockages that would prevent it from performing its safety function. A detected clogged valve must be immediately repaired or replaced if nothing can be done about it.




Draining water through a working emergency valve is a trifle. The part is rotated and the liquid is discharged out through the attached outlet hose. With a completely empty tank, you can carry out the planned activities:

• scheduled cleaning;
• odor elimination;
• replacement of parts;
• canning for the winter.

How to properly drain water from a (water heater) BOILER.

Devastation through water drainage

Compared to the previously described procedure, this method is more difficult. In addition to responsibility and maximum accuracy home handyman You will need some plumbing skills. The work process requires the presence of an adjustable wrench, which will have to unscrew the nuts that reliably preserve the integrity of the entire structure. Created by professionals step by step instructions, defining how to drain water from a water heater at home:






In some communication systems, diverter valves are mounted directly on the warm water tap. In this case, the drain level must be controlled by the emergency element, without affecting the hot valve. If you follow simple rules, the water heating tank will be empty in a few minutes; the duration of this procedure depends on its total volume.

Output via hose holes

In some cases, it is possible to drain the working fluid directly through tubes designed to drain and supply hot and cold water. But so simple method can only be used when a device with a heating heating element is installed above the bathtub, since there is no control over the speed and force of the drain.

The process involves unscrewing and then removing the cold hose from the inlet pipe and the emergency valve. Next, you need to remove the hot tube in a similar way. The liquid present in the container will spontaneously begin to drain into the bath, and the boiler will be completely ready for the necessary manipulations:

• repair;
• cleaning;
• replacement of parts.

Removing residual moisture

Regardless of how you manage to drain the boiler, the working fluid will not be completely removed from its tank. This can be explained design features water heater of any manufacture.

It will only be possible to remove every drop of water if it is practically complete disassembly equipment, thorough cleaning internal space and eliminating existing breakdowns. After this, the dried structure is assembled for subsequent use or stored disassembled until the new season.

Disassembly is preceded by draining the working fluid in a suitable way. Next, remove the decorative cover at the bottom of the container, carefully disconnect the wiring running from the signal lamp to the surface, and the electrical cords, the location of which is recommended to be remembered. The next step is to unscrew the flange counterclockwise, which is the support for the heating element. When the boiler nuts are then loosened, the remaining moisture will flow out spontaneously. Only after this can you finally unscrew the fasteners and remove the heating element from the recess.

The procedure for emptying the water heater is simple, but requires precise and consistent actions. If you have the slightest doubt about your abilities, it is better to entrust such work to professionals.