When arranging an apartment or house, the question sometimes arises: how to provide your home with warm water all year round? The apartment most often has hot water distribution. But who doesn’t know that there are emergencies or planned network repairs. In private homes and cottages, there may be no possibility of connecting to central hot water lines. An interesting solution to the problem is to put it on the tap.
Instead of a conventional mixer, a faucet is installed, which has a built-in compact heater. Most often, the faucet functions as a mixer that can operate in cold and warm mode. When the lever is turned to the side where warm water is indicated, the water heater on the tap is automatically turned on. Heating is felt within a few seconds.
The devices differ:
- power,
- execution material,
- heating temperature (insignificant),
- degree of safety,
- manufacturer's developments,
- at a price.
Most often, the differences observed are not very significant.
Design, operating principle, protection levels
An electric water heater tap is a design similar to a regular mixer tap.
He has:
- a housing made of metal or heat-resistant plastic that holds:
- heater design,
- electronics elements,
- control lever with three positions:
- turning to the right turns on the water in cold mode,
- the position of the lever directly turns off the tap,
- turning to the left turns on the heater and after a few seconds heated water runs out of the tap.
An electric instantaneous water heater on a faucet combines an electrical component and running water, which can be dangerous. Therefore, high-quality water heaters have high degree of protection.
It may consist of the following positions:
- To minimize contact between water and the electrical part of the faucet, the electrical equipment has special waterproof protective shells.
- The tap has a built-in device called an RCD. It will turn off the electric heater if the voltage in the network exceeds the norm or a breakdown occurs in its electrical part. This function protects the user from electric shock and the device itself from burnout.
- If, when opening the tap, it is too low (less than 0.4 atm.) or no water is supplied at all, the automation will turn off the heater. The same will happen if the water pressure is too high (7 atm.).
- When heating water, its temperature does not rise above the set parameter, usually 60 °C. This function is monitored by a special sensor. When the limit value is reached, it turns off the heating; when the temperature drops, the heating element turns on. This protects the water from overheating.
- The silicone damper in the crane design provides protection against water hammer.
Advantages and disadvantages
An instantaneous electric water heater on a faucet is usually compared to a boiler, and an instant water heating faucet has quite a few advantages.
- Heats water in an unlimited volume - as much as the consumer needs for his needs. The boiler has a specific volume; if there is not enough warm water, you need to wait for the next batch to heat up.
- The second advantage also leads to the third - the rate of supply of warm water is higher than that of a boiler.
- A faucet with a water heater does not take up much space, unlike storage systems.
- The water has a constant temperature, it does not overheat, saving energy. It is possible to further regulate its temperature if necessary.
- Water is heated by volume exactly as needed. There may be excess in the boiler, the heating of which was spent on electricity. And the central supply of hot water inevitably spends a large amount of energy on heating water, part of which simply cools down in the systems, waiting to be used.
- The device has a lower cost compared to storage systems.
There are also disadvantages:
- Due to their small dimensions, some designs do not have filters. The longevity of the water heater will depend on the quality of the water in the water supply network.
- A faucet with a water heater consumes a relatively large amount of electricity.
- There is a limitation on the water heating temperature; if there is a need for water hotter than 60 or 65 ° C, then this will not work.
- Due to its power, an electric heater in a faucet requires careful attention to the wiring in the house.
- When describing instantaneous electric water heaters for taps, reviews often contain information that the performance of the tap is not very high and the heating temperature may be not 60, but 40 °C.
Tip: Before choosing a device, you should evaluate whether the internal electrical network is ready for additional load. If not, do the work: replace the outdated wiring or make a separate one for the electrical appliance.
Installation Features
In the packaging box upon purchase you will find a faucet already assembled at the factory and an attachment - a rotating spout of the faucet. It is easily inserted into the faucet structure. Installation of the device is very simple and does not require the services of a specialist. The old mixer is dismantled. The faucet is connected using a flexible hose to a pipe supplying cold water to the sink.
Now check the presence of cold water and whether there is proper pressure. In order for the electric mixer-water heater to be in working position, the plug of its electrical part is plugged into a socket. Check whether the RCD protection indicator lights up. After this, you can use the hot water tap. To do this, turn the lever to the left.
Popular models
Note that, depending on the model, the price for an electric instantaneous water heater per tap will be in the range of 3000-4500 rubles.
Aquatherm
The Aquatherm instantaneous water heater, like other representatives of such devices, is easy to install. The manufacturer provides a five-year warranty. The maximum water heating temperature is 60 °C. The crane is equipped with a full range of functional accessories to make using it a pleasure. It has an RCD protective device, which makes the device safe to use.
The sensor monitors the water pressure: if the water pressure is too low or too high, the automatic system turns off the heating. The faucet functions well in the bathroom to heat water for showering. This is facilitated by the Eco Jet shower head. It helps the user to make showering comfortable. It is important that the tap is equipped with a filter for purifying running water. This extends the longevity of the device. The power of the device is three kilowatts.
Kruss
The heated faucet is similar to other devices of this type, but has some differences. The device has a stylish look. Specially shaped faucet divider. The lever is nickel plated. Shiny inserts and blue lighting make the faucet very beautiful.
The device is easy to install. Connects to the cold water system using a flexible hose. Power three kilowatts. The faucet is equipped with automatic equipment to turn on the heater when the lever is turned in the appropriate direction. The maximum heating temperature is 60 °C. It has a built-in thermostat. This makes it possible to use it to adjust the desired heating temperature.
Delimano
The device does not have any special differences from devices of this type described above. Limitation of water temperature heating – 60 °C. Material: metal and plastic. Power - three kilowatts. It works if the water pressure is within 0.4 ÷ 6 atm. Regulates the heating temperature by turning the lever: changing the jet pressure.
It can be installed at the place of use simply without the help of a specialist. The power cord is one meter long. A special nozzle on the faucet creates a stream saturated with oxygen. This makes it possible, with a small pressure, to create a heated flow of water sufficient to meet the sanitary needs of the user. This feature also saves water consumption.
If you want to know what it is, its characteristics and advantages, this information is on our website.
For those who want to figure it out, we have a separate article. We compare the pros and cons of heating devices.
Interruptions in the supply of hot water are encountered quite often. Tired of putting up with such inconveniences, many apartment owners begin to look for a way to eliminate the resulting discomfort. Often the choice is made in favor of a device such as an instantaneous electric water heater for a tap. With its help, you can have hot water in your house even during periods when the water supply is being repaired. You just need to choose a quality device and install it correctly.
An electric water heater for taps will help solve your problems with interruptions in hot water.
Device Features
An instantaneous tap water heater is a device characterized by compact dimensions. Its use in urban housing solves the problem of supplying warm water. How appropriate it is to install such a device is determined by the frequency, intensity and conditions of its use.
The main difference between the equipment and other water heaters is that it is mounted on a tap. This makes it possible to quickly solve the problem associated with a lack of hot water. After installing the device, warm water appears in the apartment in a matter of minutes.
In this video we compare an instantaneous water heater with a boiler:
Modern models of water heaters of this type meet all the requirements for them:
- They have high protection against electric shock.
- Provide the ability to adjust the water temperature.
- They are easy to use.
- They have a modern design.
Thus, we can safely say that the faucet-mounted devices that are offered in stores today are absolutely safe. Their use ensures the supply of warm water in a short time. If the choice is made in favor of equipment from a large company, then the user has at his disposal a device that is distinguished not only by high quality manufacturing, but also by reliability. But during operation of the water heater you need to be prepared for high electricity costs. After all, such models are quite energy-intensive. Their design includes:
- High power heating element;
- temperature level controller;
- fasteners with which the device is connected to water supply networks;
- tap for hot water outlet;
- emergency shutdown device;
- temperature sensor;
- water filter;
- safety relay.
Electric water heaters can help you save money
Some manufacturers offer devices that have digital thermometers and are equipped with sensitive touch controls. Thanks to them, you can easily change the degree of heating on the go.
A flow-through electric water heater for taps differs from a conventional faucet by the presence of an electrical wire that connects to the AC mains. When using such a device, it must be remembered that when connecting electric current and running water, a danger may arise for the user.
Therefore, the choice of device must be approached with the utmost seriousness. Preference should be given only to high quality models offered by well-known manufacturers. If inexpensive equipment is purchased to save money, its use can be fatal.
Principle of operation
Such water heaters cannot be considered as an addition to a regular faucet. They act as an alternative to it. Using the device, you can easily replace a conventional mixer. This design is installed directly in the kitchen sink., and then connect to the water supply and power supply network. To start using the device, you need to connect the wire to a regular outlet.
The operation of the devices is simple. When the user turns on the water tap, the device starts working in automatic mode. A few seconds pass and hot water flows from the tap. A significant number of models offered in stores are able to heat water to +40...+60°C. However, it is possible to regulate the degree of heating.
Hot water stops flowing when the tap is closed. If there is no need to heat it, then you can simply move the regulator lever to the “off” position. To be able to independently adjust the temperature, it is necessary to give preference to technologically advanced models when choosing.
Advantages and disadvantages
Any device has, along with positive aspects, negative sides. Portable tap water heaters are no exception in this regard. Consumers are attracted to them:
- Small size. If the bathroom has a small area, then such a device will be an ideal solution. The heater will only take up the space required for the faucet in the sink or kitchen sink.
- High heating rate. Regardless of power ratings, any device can heat water to the desired temperature in 30 seconds. Even storage devices cannot boast of this, in the case of which, in order to have hot water in the tap, the device must be turned on in advance, and it is best to do this half an hour before use.
- Constant control of the heating level. In modern models, the degree of heating is controlled using a special indicator. It constantly monitors the situation and, if necessary, makes adjustments to the operation of the heating elements.
- Aesthetic appearance. In many retail establishments that offer such devices, they are available in a wide range. You can choose the design and color scheme. In addition, the devices differ in their shapes and have a variety of valve designs.
Ease of use and economy are the main advantages of flow-through heaters - Easy to install. The installation procedure is no different from installing a conventional mixer. The only difference is that this device must be connected to the mains. Another feature is the presence of grounding in the structure.
- High efficiency. Such a heater never works idle. It functions only “after the fact.” If the user turns off the tap, no electricity is consumed.
- Low cost. The price of the devices is much lower than that of storage devices for heating water. Therefore, they are chosen by many people who need to have uninterrupted hot water supply.
Among the disadvantages of all models are the following:
- High energy intensity. Their usual power is 2.5−4.5 kW. The use of such equipment in a city apartment significantly increases electricity bills, especially if the device is used frequently.
- Another disadvantage is the limited bandwidth. This means that per minute the amount of heated water passing through the tap is only 6 liters. When the device operates, there is a serious load on the electrical network. Therefore, if the building has old wiring, then when installing such a device it is advisable to lay a separate network. Otherwise, there is a high risk of short circuiting.
- Another negative point is that the thermal tap can be used to service only one water intake point. The hot water that flows from it cannot be divided into several streams, so the user does not have the opportunity to simultaneously use it for washing dishes and taking water procedures.
- It should be noted that repairing such devices is a big problem. If a breakdown occurs, the device cannot be restored. The only solution is to throw away the device and buy a new one.
Types of water heaters
Such devices are usually divided into the following types: removable heating nozzle and mixers with a built-in heating element. Each type has its own installation and use features.
Separate faucet attachment
Such a device must be installed on the bend of a pre-installed mixer. The main advantages of the device are its low cost and compact size.
Among the disadvantages are the low power of the thermoblock, as well as low productivity. For most models it does not exceed 4 l/min. The protective element in the module is a thermal sensor, which prevents the device from overheating during use.
Instant heating mixer
Models of water heating devices installed instead of a conventional mixer have the largest representation in the assortment of stores selling similar devices. Such devices can operate in three modes:
- Hot water supply. To use it, turn the handle to the right. In this case, the electrical system of the equipment begins to work. The result is a good flow of warm water.
- Cold water supply. In this mode, the lever is set to the left. This action turns off the electrical part of the faucet. Only cold water flows out of it.
- Shutdown. In this case, the joystick handle is placed in the central lowered position. The heating device is inactive. The system is de-energized and there is no water supply.
For most flow-type devices, water temperature is adjusted by changing the pressure. By simply moving the lever vertically, the user can select the most suitable heating mode.
An electric instantaneous mixer-water heater allows you to easily solve the problem of interruptions in hot water supply. When using the equipment, warm water is available at any time. You just need to take the task of choosing a device seriously. You should purchase only high-quality equipment. In this case, the risk of electric shock will be eliminated, and heating will occur very quickly.
A long stay without hot water turns a person's life into gray despondency. All people are trying to solve this problem, and everyone does it in their own way. Some install a large boiler, others prefer faucets with a built-in water heater.
The device is almost no different from a conventional mixer. Instantaneous taps are connected to a cold hose. Heating is carried out inside the equipment. Within 3-5 seconds the water will reach a temperature of up to 70 °C. It is worth noting that the instantaneous electric water heater for the tap is made of a special steel alloy that does not corrode and does not form scale.
The device has 3 operating modes:
- “Off” - the handle is in the “down” position. There is no water flow, the electrical circuits are de-energized.
- “Cold” - the lever is in the “left” position. The power supply is turned off, and ordinary water at room temperature flows from the tap.
- “Hot” – the handle is turned to the right. The electrical system is turned on and hot water starts flowing from the tap within a few seconds.
There are models of mixers in which the temperature regulator is located outside the structure. This is convenient - the electronics control all the necessary indicators.
Advantages and disadvantages
The advantages include:
- Fast water heating. Hot liquid will be supplied within 5 seconds after switching on.
- Excellent technical characteristics of a cold water heater for a tap in the bathroom or kitchen. Liquid temperature - up to 70 °C, good pressure, compact dimensions, local area of use.
- Constant temperature. There will be no hesitation towards the appearance of boiling water or, conversely, the flow of too cold liquid.
- It will fit perfectly into any interior and will never spoil the appearance of the room.
A flow-through heater that fits onto a faucet has almost no drawbacks. We can only note the high energy consumption - 3 kW per hour. Another drawback is the low flow capacity (up to 6 liters per minute). However, this indicator is quite enough to fill the bathtub or wash the dishes in the kitchen.
Review of Chinese-made faucets with heating function
| Model name | Peculiarities | Characteristics | t heating, °C | Energy consumption, kW | Price, rubles |
| "Aquatherm" | Attractive design, quick installation, water purification filter. | High-quality electric heating element, protection against overheating and electric shock. | 60 | 3 | 3 900 |
| "Delimano" | Fast supply of hot water, attractive design, ability to regulate temperature. | Material: plastic, metal. Working pressure: 0.4-0.6 MPa. | 50-60 | 3 | 2 500 |
| "Aquastream" | Compact size, energy saving. | The body is made of composite plastic. | 60 | 2,5 | 3 500 |
| "RAPID™" | Instant water heating, resource savings compared to a boiler - 30%, easy installation. | High-level protection against overheating. | 60 | 3 | 3 900 |
| "Corraveni" | The valve is made of ceramics, the surface finish is made of chrome-plated steel. | There is a self-controlled water temperature system. | 60 | 3 | 4 200 |
Before purchasing these devices, you need to pay attention to the power consumption. This indicator should be minimal, since the lower it is, the greater the savings in resources, and therefore money.
Systematic interruptions in the supply of hot water are a pressing problem that has affected every city resident at least once in the life. But if earlier people sat quietly and waited for their hot water supply to be turned on, now they are taking matters into their own hands and buying a instantaneous water heater.
Why do you need an instantaneous water heater?
An instantaneous electric water heater for a tap is a portable device whose main purpose is to heat water. The structure is installed directly on the source of liquid supply (faucet) in the apartment itself or some other room. Heating of water occurs due to the influence of electric current.
Types of device
There are two types of flow heaters:
- gas;
- electric (pressure, non-pressure).
Flow-type gas devices are equipped with a special burner, due to which the temperature of the liquid increases.
The instantaneous electric water heater performs its main function due to the built-in heating element.
Gas and instantaneous water heater: pros and cons
The advantages of gas equipment for heating water include:
- compact dimensions of the burner;
- no need to install a water storage tank;
- Several installation options are possible - wherever there is a mixer (bathroom, kitchen).
The disadvantages of a gas device are:
- minimum power indicators;
- the impossibility of instantly heating the liquid to high temperatures;
- low level of productivity;
- there is a need to install a chimney.
Advantages of electrical equipment for heating water:
An instantaneous electric water heater for a tap also has disadvantages:
- large amounts of energy consumption under conditions of instantaneous heating of water to high temperatures.
Operating principle of an electrical device
Heating of cold water is carried out through the use of a heating element (heating element, spiral). Electrical energy is converted into thermal energy. This process takes place in a special heating chamber, which is located in the body of the tap itself.
Design of the water heating unit
- The spiral heating element is the heart of the electric water heater. Depending on the functionality of the device, there may be several heating coils, usually two, the main difference of which is the power indicator. Equipping the device with such heating components makes it possible to select a heating mode.
- The copper cylinder in which the coils are placed has hermetic properties and has inlet and outlet openings.
- Thermostat. Its main task is to maintain a certain temperature of the liquid.
- The hydraulic regulator is responsible for activating and deactivating the device due to the difference in fluid pressure fluctuations at the outlet and inlet.
- Hydroprotection prevents moisture and liquid from entering the internal components of the electrical unit.
- Nozzles
Also, for ease of operation, electric instantaneous water heaters can be equipped with an electronic control system, which ensures that the water heating unit is turned on/off and maintains a stable temperature of the outlet water.
Adjustable temperature control - myth or reality?
Electric instantaneous water heater and liquid temperature control are compatible concepts. You can choose the best option individually by adjusting the pressure: the greater it is, the higher the temperature of the liquid, and vice versa.
Instantaneous electric water heater "Aquatherm"
Aquatherm products have occupied a leading position in the sanitary equipment market for many years. An invaluable advantage of this group of products is that such an electric heater can be used not only in an apartment, but also in a country house.
"Aquatherm" - electric instantaneous water heaters. The characteristics of such structures are as follows:
- energy consumption - no more than 3.5 kW;
- voltage - 220 Volts;
- access to cold water - 1 pc.;
- protection against voltage surges and power interruptions;
- protection against low temperatures;
- water temperature adjustment.
According to experts in the field of housing and communal services, Aquatherm are the best instantaneous electric water heaters that will last a long period of time. The price of such a miracle device is affordable and varies from 3 to 5 thousand rubles, and purchasing it will not be difficult. Online shopping has become especially popular recently, allowing you to view the full product catalog in real time, as well as carefully study the model range and characteristics of a particular device.
Electric instantaneous water heaters "Delimano"
The Delimano heater is an elegant design device, usually made in white. It looks like a standard mixer. The heating element, heating element, is mounted in the inside of the device, which provides instant heating of running water within 60°C. The unit is equipped with a special regulator, thanks to which control of the heating temperature of the liquid is carried out efficiently and easily.
Thus, functional devices that are easy to install, daily use and uninstall are Delimano electric instantaneous water heaters. Reviews about the category of household goods under consideration contain complete information regarding the special practicality of the device, achieved through the use of specialized modern equipment and high-quality materials in the production. It should be noted that such a device consumes much less energy compared to any other heating household appliance, be it an electric boiler or an electric kettle.
Operating an electric water heater
As noted earlier, instantaneous electric water heaters for taps can be either pressure or non-pressure. The latter consumes energy within 2 kW, and the heating capacity extends to no more than two water points, provided that they are located close to each other. The key to proper operation of the device and long service life is compliance with all technological recommendations (they are determined by the manufacturer) regarding the installation of the device and its further operation. The situation is as follows: the pressure inside the water heater is equal to atmospheric pressure, therefore, when turned on, the spout tap must always be open.
The procedure for bringing a flow-through electric water heater of a non-pressure type into the active phase:
- opening the spout tap;
- opening the tap, which is located on the inlet pipe;
- turning on the water heater.
The shutdown procedure consists of similar actions, which should be performed in reverse order.
The water heater will fail if:
- install a new nozzle, the cross-section of which does not meet the technical requirements of the manufacturer;
- replace the standard spout.
A flow-through electric pressure tap-water heater is less demanding to operate. Reviews, or rather, their number, indicate that this particular type of water heater is in great demand among users. The power consumption of a pressure unit significantly exceeds (can reach 30 kW) that of non-pressure type equipment, which ensures proper operation at several water collection points.
The process of activating a pressure electric heater involves only one action - opening the hot water tap.
Features of choosing an electric water heater
1. The power of the heating element is a fundamental parameter when choosing an electric instantaneous water heater.
To use the device in an apartment environment, you should choose a device that is equipped with a heating element with a power of at least 3 kW. Why? Yes, because approximately 2-3 liters of liquid pass through the water heater in 60 seconds, which should heat up instantly. Data analysis and statistics show that the Delimano electric flow-through water heater faucet copes with this task perfectly. And this indicates the high quality of such products.
If an electric water heater is purchased for household purposes, it is recommended to choose models equipped with a powerful (about 7-10 kW) heating element. In addition, the power of the heating element is determined based on the number of available water intake points.
2. Compatibility of the device connection type with the characteristics of the power grid. Here, first of all, you should read the instructions for the equipment in detail.
3. The warranty period, depending on the manufacturer, can be 3-10 years. Accordingly, the longer the period, the better.
Is there an alternative?
Yes, there is an alternative! The optimal device for heating liquid is still considered to be the use of a storage-type water heater. If the issue is dimensions, that is, you do not have relatively large free spaces for installing a heater, you can give preference to storage devices with a capacity of 5-12 liters. The dimensions of such a unit do not differ much from the dimensions of an instantaneous water heater, but the maximum possible water heating temperature is 80-85 °C. The only minor drawback of electric storage tanks is the long heating of water. This may take some time (depending on the volume of the tank and the selected temperature mode, it can average from 10 to 60 minutes).
During the period when hot water is turned off in the summer in the city or in the country during vacation, you always want to treat yourself to hot water to wash your face or wash the dishes. It is very uncomfortable to do this with cold water.
Of course, you can heat water in a kettle or in a saucepan, or you can forget about these inconveniences. The Aquatherm flow-through heater will supply hot water as soon as you open the tap.
In contact with
Heater device
This appliance looks like a regular kitchen sink faucet. Made from high-quality material, it has a modern design that any housewife will like. The Aquatherm instant water heating faucet completely replaces the kitchen faucet. Its controls are the same - single-lever, turn the handle in one direction - you get cold water, in the other - hot water.
There is a powerful heating element inside. When water passes through it, it has time to heat up to a comfortable temperature. It does not need to be installed next to an existing conventional faucet.
Useful qualities:
- power consumption - from 2.5 to 3 kW;
- quickly enters operating mode - within 5 seconds from the moment water is supplied;
- ease of installation;
- smooth temperature control;
- has a built-in RCD (Residual Current Device).
The entire mechanism of this heater is designed so that the user does not think about technical issues when using it. I just opened the tap and hot water came out.
The water supply regulator has three positions:
- turned off;
- cold water supply position without heating;
- water supply with heating element turned on.
Connection
Any housewife can cope with this task:
1.
First you need to free the device from the packaging and remove the plastic nut from the mounting tube, leaving only the rubber gasket aside.
2. Insert into the hole in the sink and screw from below.
3. You need to connect the cold water supply to the mounting tube from below using a flexible hose, which is sold in any store.
Take into account: It is advisable to use a special tape for sealing threaded connections (fum tape). The water heater comes with detailed instructions in pictures with a connection diagram. It is very difficult to make a mistake in this case.
4. After all connections are connected, you can check them for leaks. Turn on the water without electricity and make sure that there are no obstacles to its flow anywhere.
5. If everything is in order and nothing is dripping anywhere, you can safely plug in the device. The indicator on the protective device located on the electrical wire will immediately light up. To avoid premature failure of the heating element, the mixer contains a special dry running sensor. It turns off the electricity supply if there is no water in the tap.
Advice from the editor: It is worth paying attention to the outlet itself where the water heater will be connected. It must provide for mandatory grounding and a thicker wire - with a cross-section of at least 1.5, and preferably 2.5 square meters. mm.
6. Next, you need to turn the faucet handle to the left, hearing a characteristic click (the heater on relay will work), the water will begin to heat up. This will be indicated by the LED indicator on the mixer. After about 5 seconds the water will be heated to maximum level. Next, the temperature is adjusted by decreasing the water pressure.
The smaller the jet, the hotter the water. In order not to experience discomfort because of this, there is a special attachment on the tap - an aerator. It allows you to create the effect of a large volume of water with low pressure.
Customer reviews indicate that the water heating tap has shown its best performance and remains in many homes as a backup hot water supply system.
We invite you to watch a video about how to triple and how the Aquatherm instant water heating faucet works:
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