DIY electric boiler installation. Do-it-yourself water heater installation. We connect cold water and bring out hot.


Before you start installing the boiler with your own hands, you should check whether the cross section laid in the walls of the wiring is large enough. For example, to connect a water heater with a power of 2 kW, a copper cable is required, the core section of which is 2.5 mm 2 or more. When overloaded, the wiring may begin to melt. This threatens a fire.

Installation details for electric water heaters

First turn off the water heater on the main electrical panel. Then follow the same draining procedures as for a gas water heater. When the water heater drains, disconnect the electrical wires from the screw terminals under the access panel, which is usually located near the top.

Follow the manufacturer's instructions to connect a new water heater. Check the instructions and make sure that the rating of the old fuse or circuit breaker is high enough to work with the new water heater. In addition, the circuit must have a trip switch within sight of the Water Heater.

To connect a water heater, it is necessary to crash into pipes. Often their condition, especially in old houses, leaves much to be desired. Therefore, it is not uncommon for those who wish to install a boiler to also change pipes in the apartment.

Necessary tools for installing the boiler yourself

Self-installation of the boiler is possible only if you have all the necessary tools, which include:

Before starting work, call your local electrical inspector. You probably need permission. Then, when you're done, ask an electrician to check your work. If you have aluminum wiring, call a licensed professional who is certified to work with it. This wiring is dull, not dull orange, which is typical for copper.

Video: How to dispose of a water heater



It will also show you an easy way to carry a water heater from your home, even if you are working alone.

These tips will help make your work faster and easier.

Measure the height of your old water heater and get the new height the same, so you do not need to change the length of water, gas or electrical lines. With everything at hand you will need four to six hours to complete the job. The temperature and pressure relief valve is a safety device that limits the pressure in the tank and prevents it from exploding. Each installation must include a new installation. This slows down. When connecting water lines, solder the copper fittings before screwing them to the tank so that you do not heat the tank itself when soldering. Use couplings to connect old and new lines. Unlike conventional couplings, they do not have an internal stop, you can slide them on, align the copper pipe, then fold them back and center them at the joint. New inputs and outputs on the tank do not always coincide with Old power lines. Solder a pair of 45 degree fittings to compensate for each line if necessary. Also replace the old check valve with a new ball valve when you are on it. The diameters of the fans correspond to the dimensions of the thermal power of the water heater. Both are more reliable and less expensive than flexible stainless steel connectors, which are not always allowed. Use rigid copper lines rather than flexible copper water lines for the same reasons. If you find your water heater where leakage can damage the floor or other parts of the house, install an approved tray underneath. Have a drain pipe that leads to sewage in a house or other authorized place. The exhaust pipe of the temperature and pressure relief valve should also cause leakage if the leakage damages floors. Your plumbing inspector will tell you if they are required. Set the temperature of the new water to a temperature of no more than 120 degrees Fahrenheit to avoid burns.

Necessary tools for this project.

  Necessary materials for this project.
  • The drain valve on old water heaters is often clogged.
  • A strong helper or trolley when you move an old one and insert a new one.
  • Check the size of the water pipes and buy fittings of the correct size.
Avoid last-minute purchases by preparing all your materials in advance.

  • hammer drill;
  • set of Boers;
  • cap and adjustable wrenches;
  • a set of screwdrivers of various types (slotted and Phillips);
  • pliers;
  • nippers.

In addition to tools, materials will be required, without which it will be impossible to install the boiler:

  • tow (or another type of spool);
  • fum tape;
  • shutoff valves (3 cranes);
  • tees (3 pcs.);
  • connecting hoses of sufficient length;
  • pipes.

In the event that you need to replace part of the wiring, you must stock up on the following items:

Do-it-yourself boiler installation - is it possible?

Pipelines for pressure pipes Threaded connection pipe Pressure reducing valve Protective pipe and connectors Water pipe and gas pipe The water heater is the second largest user of energy in the home after the heating and cooling system.

Water heaters, ranging in size from 20 to 80 gallons, are the most commonly used water heaters in homes today. When you turn on the hot water faucet, hot water is drawn from the top of the water heater, and cold water flows to the bottom to replace it. The water in the tank is heated by an electric heating element, gas or oil.

  • 3-core copper cable with a cross section of at least 2.5 mm 2;
  • socket outlet with grounding;
  • electrical tape;
  • automatic machine.

Installation of a storage boiler

In order to learn how to install the boiler correctly, you need to familiarize yourself with the attached documentation. Since each model has its own characteristics, all of them must be taken into account during installation. Most often, storage water heaters are installed in apartments, since they consume less electricity and their cost is low.

The most important energy feature of storage water heaters is the amount of tank insulation. Consumable or instantaneous water heaters do not have a tank. Water is heated as needed, but flow rate is limited. If you have a couple of teenagers in the house, or you need to do a load of laundry, and someone is in the shower, then the demand water heater may not provide an adequate supply of hot water.

How heat pump water heaters work

Heat pump water heaters use electricity to transfer heat from one place to another instead of direct heating. Therefore, they can be two to three times more energy efficient than conventional electric resistance water heaters. To move heat, heat pumps work like a refrigerator in the reverse order.

The installation of the boiler itself is carried out in the following order:

  • the wall is marked, mounting fittings are mounted on it;
  • the water heater is placed on the wall;
  • an insert is made into the water supply system;
  • the tank is filled with water, the absence of leaks is checked;
  • power is supplied, device operation is checked.

Marking is carried out using ordinary chalk. After the points for fasteners are marked, you should drill holes into the wall with a punch. Then, using a mallet or an ordinary hammer, the dowels are hammered. They are hung on hooks or other fasteners, which comes complete with a water heater. The number of holes to be drilled can be 2 or 4.

While the refrigerator draws heat from the inside of the box and unloads it into the surrounding room, the self-contained water heat pump heater heats the heat from the surrounding air and dumps it - at a higher temperature - into the water tank.

Ways to reduce water heating costs

The number of people in your family, the amount of laundry you do, and your dishwashing habits affect how you use your hot water. Water heated to 120 ° and 125 ° is hot enough for most households. This is about halfway between the “low” and “medium” settings on most water heaters. If you do not have a dishwasher or if you have an additional heater, keep the water temperature in the middle position. Water-resistant or low-flow shower heads can reduce the use of hot water in half. Rain showers of up to five minutes can also reduce the use of hot water. Isolate your water heater. An insulating shirt can pay for itself by saving energy in less than a year. The older the water heater, the greater the potential savings. Always follow the manufacturer's instructions in the user manual. Set a timer. A simple timer that closes the water heater 12 hours a day will pay for itself in less than a year. Savings are greater for water heaters located in unheated garages and basements.

  • Lower the temperature of the water heater.
  • Protect water.
Installation of a water heater is necessary if you expect customers and employees to be comfortable in your commercial property.

It is very important to consider the height of the water heater. Since it often happens that the distance from the fasteners to the upper part of the case is very large. And, having missed, you can easily not fit the heater in height. Therefore, before proceeding with the markup, it is worth using a tape measure and checking the height.

In order to learn how to install a boiler with your own hands in such a way as to avoid its subsequent breakdown, you need to contact experienced locksmiths. You should also use their help if the water pipes rotted - they will need to be completely replaced. If the pipes are in order, then connecting the boiler will not cause problems. When there are already withdrawn taps, it is enough to simply connect them to the boiler using pre-purchased flexible hoses. Conclusions on hot as well as cold water are indicated in red and blue, respectively.

For example, a restaurant-like property would not be so successful if it did not have a reliable source of water heating. Even if you do not have a restaurant, you cannot deny it is important. If you have a residential complex, you have residents who depend on hot water for everyday purposes, such as showering and washing dishes. However, although hot water is a necessity for a home or business, you need to make sure that you are installing the right type of water heating system. When you are already going to make money, the last thing you need is a water heater, which costs you too much in your accounts or cannot satisfy people's needs for hot water.

If there are no pre-prepared bends for connection, then you must mount them yourself. This will require metal-plastic or polypropylene pipes, as well as a couple of hours of time.

Particular attention must be paid to the overpressure relief valve. It must be correctly installed, choose the right direction of the flow of water.

Preparing the device for work

It is easy to buy the nearest water heater that you can, but such an impulsive decision-making process can lead you to a path of significant loss of money and more stress than you expected. Our team of commercial plumbers will provide your hot water needs for both customers and employees. We want your business to succeed, and as soon as you work with us, you are guaranteed to have a water heater, which will take you one step further. Before starting any installation work, we work with the business owners to make sure that they are installing the correct water heater and will check the property to determine the best installation area.

This valve automatically relieves excess pressure, if any, arises during operation. That makes it possible to avoid damage to the boiler, as well as flooding. That is why the use of such a valve is strictly necessary. If it is not included in the kit, you should purchase it separately.

What types of water heating are available?

Thanks to our help, you will have a long-lasting, highly efficient water heater, which ensures that you do not have to worry about having to install another for a long time. If there is hot water, everyone met, especially before this winter begins, you can focus on making your business truly the best in the city. There is more than one type of water heating on the market today, and it is important to evaluate which type is more likely to give what you are looking for.

When all installation work is completed, it is necessary to completely fill the tank with water and keep it in this state for one hour. If no leaks are detected, you can turn on the water heater in the network and test water heating.

Instructions for self-installation of the boiler are available on many Internet resources. That is why in most cases the participation of a specialist in this process is not required. For successful installation, you just need to purchase the necessary amount of material and the required tool.

Here are some of the most common options. It has a tank and probably the most popular type of water heater for commercial and residential facilities. Then you do not have to deal with this and instead install a water heater without water. Although they have a higher installation cost compared to conventional models, a cylinderless water heater has an incredible life span and a life span of up to 20 years. Heated water in the tank list: in winter it is very cold in the North Bank. You can even claim that the North Bank is famous for this. With this in mind, pointless water heating is ideal for colder climates. They can heat water without a tank, since they use a coil installed in the heating system. Solar water heating: Solar energy is becoming quite popular among homeowners as it uses less fuel to heat water and reduce carbon footprints. They reduce the likelihood of the emission of any gases that have a harmful effect on both your home and the environment, which halves the cost of heating water. Conventional water heating: you already know this. . Even if you have chosen the right type of water heating for your property, there are some other areas that you need to think about before making a purchase, including.

Video instruction for self-connecting a boiler

Another video on how to connect a boiler

One of the main components of comfortable living in an apartment is hot water supply. But unfortunately, often in apartment buildings there are interruptions with it, especially during repairs in the summer. In this case, the water heater installed in the apartment may come to the rescue. With him there will always be a supply of hot water. Moreover, having bought a boiler, installing it is easy with your own hands.

Water heaters are divided into flow and storage. They use electricity differently and have different operating principles.

  • If hot water will be needed only from time to time for one or two people, then attention should be paid to the flowing boiler. Such a heater does not take up much space and instantly heats the water. However, its use is not economical in terms of energy consumption (about five kilowatts per hour).
  • If the apartment is home to three people or more, who use hot water constantly, then it is better to purchase a storage water heater.

How does a storage boiler work

Accumulative water heater has a tankwhich is filled with water.

  • Cold water entering the tank is heated to the set temperature using a heating element.
  • The required temperature is set by the temperature regulator with which the boiler is equipped.
  • Water is heated for about an hour and a half.
  • Between the walls of the tank there is an air gap, which does not allow water to cool quickly.
  • During the day, the water heating mechanism itself starts using a thermostat. Thus, the set temperature is constantly maintained.
  • An accumulative boiler consumes only one and a half to two kilowatts per hour.
  • Cons of a water heater: slow heating of water and a sufficiently large volume of the tank, which takes up a lot of space.

The required volume of the storage tank. The variety of choices is large, so you should decide on the number of people who will use the heating water, and the number of draw points connected to the water heater.

Power consumption   . For an average boiler, two or two and a half kilowatts per hour is enough. Excess power is not needed, otherwise the wiring will be seriously loaded in the apartment.

Type and dimensions of the housing. Basically, these parameters depend on the volume of the water heater. However, there are some peculiarities.

  • Vertical boilers are more economical, productive and have a low cost.
  • Horizontal tanks are characterized by fast heating of water. Recently, they have become very popular and, if the width of the wall allows the room, then they choose this type of boiler.
  • “Flat” water heaters are more compact. Their tank is flattened from two edges and therefore less overall. However, the possibility of corrosion and the overall strength of the structure reduces a considerable number of welds. Yes, and such a tank is quite expensive.
  • Cylinder-shaped boilers are easy to install and maintain. But in a cramped bathroom, their installation is not always possible, since the tank protrudes excessively along the front.

Type of electric heater. TEN can be “wet” or “dry”.

  • A “wet” heater is more effective because it is in direct contact with water. However, it is most vulnerable to scale deposits and corrosion.
  • The “dry” TEN enclosed in the capsule does not come into contact with water. It can easily be changed if it fails, although such a heater is durable.
  • Its minus is that these advantages are reflected in the cost of a water heater.

Do-it-yourself installation of a water heater is quite simple. But this one the process has several nuancesto be observed.

Preparatory work

After selecting and purchasing a boiler, it is necessary to prepare the place for its installation and fulfill the conditions that are necessary for the safe and proper operation of the water heater.

  • Installation of the device should only be carried out on a load-bearing wall, which is capable of withstanding the double load weight.
  • Be sure to check the water pipes and make sure that they are in good condition. Otherwise, it is better to exchange them for a plastic pipe.
  • The electrical wiring of the apartment must withstand full load. For a storage boiler with a power of 2000 W, a copper wire with a cross section of 2.5 mm2 is needed.
  • Access to the device and control nodes should be free. This is necessary so that at any moment it is possible to do preventive maintenance of nodes or repair them.

After everything is checked and prepared, it is necessary stock up on the necessary materials and tools   To install a boiler yourself:

  • punch;
  • a grinder or scissors for cutting pipes;
  • tape measure;
  • nippers and pliers;
  • adjustable spanners, gas and wrenches;
  • shut-off valves (two for instantaneous water heater and one for storage);
  • screwdrivers;
  • mounting paste, oiled tow and FUM tape;
  • ½ inch tees;
  • plastic pipes;
  • flexible reinforced hoses.

Now everything is prepared - you can proceed with the installation of the boiler.

We connect cold water and bring out hot

Wiring diagram   the appliance to the water supply is quite simple.

  • The boiler must be connected after the water meter. For example, on the valve on the toilet flush cistern.
  • The tee crashes only after the cold water is blocked to the entire room.
  • After the valve, a standard fitting with a diameter of ½ inch is installed.
  • All threaded connections are packed with FUM tape or linen tow with mounting paste. They are wound strictly clockwise.
  • Complete with a water heater there should be a non-return valve, which, screwing onto the coupling, is installed on the inlet fitting.
  • The fitting, which goes to the inlet pipe, is screwed onto the outlet fitting.
  • An adapter is placed   to exit with hot water.
  • After all the fittings are installed by yourself, you can install the water heater on the wall and connect pipes for hot and cold water to it.
  • Pipes into fittings should be inserted to the end, without applying too much force when tightening the nuts. They can be pinched in case of detection of digging during the pressure test of the water supply.
  • At the inlet and outlet of the tank, it is best to use reliable ball valves.

Do-it-yourself water heater

Now necessary fill the water heater   and open the hot water tap to let air out of the system. After that, the boiler is connected to electricity, and after about an hour and a half it will be possible to use hot water.

Connecting a flow boiler

Compact size and light weight   devices allow you to install it almost anywhere. For example, in the kitchen or in the bathroom under the sink.

Temporary connection

  • A shower hose can be connected to drain hot water.
  • To supply cold water to the pipe, insert a tee, install a shut-off valve and connect the flexible hose to the inlet on the boiler.
  • After that, a cold water tap and a hot water outlet valve are opened.
  • The device turns on the network, and after half an hour, heated water begins to flow.

Fixed connection

With this connection intake and supply of hot water   It is provided at the same time as the central water supply.

  • The tees cut into the pipes of cold and hot water and valves with a sealed connection are installed.
  • A pipe with cold water is connected to the input to the device.
  • The hot water shut-off valve is connected to the outlet of the heated water using a hose or a plastic pipe.
  • All cranes open and the system is checked for leaks.
  • After the boiler is connected to the power supply, hot water will flow from the mixer.

In an apartment building with a fixed connection should block the hot water riserto prevent the outflow of heated water into the pipes of neighboring apartments.

Today, the range of water heaters is so wide that for any needs and preferences, you can choose a model without difficulty. After that, you just have to read the tips, watch the video instructions and install the boiler in the apartment, house or cottage with your own hands.


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