An electric instantaneous water heater for tap will help solve your problem with hot water both in apartments and in country houses or cottages. We will tell you what instantaneous water heaters are available and how to choose such a device in this publication.
Without hot water supply, it is difficult to provide comfortable living conditions in an apartment or private house. This problem can affect both residents of cities where scheduled hot water supply shutdowns are periodically carried out or emergencies occur in the communications system, as well as happy owners of dachas where centralized networks are not laid. A solution can be found in installing a water heater, of which there are many types offered today.
Electric instantaneous water heater for tap
Types of water heaters
To be able to constantly use hot water, you can use various equipment to heat it. Moreover, doing this, as a rule, is not at all difficult. All devices are classified into a number of categories depending on two factors.
Main classification of water heaters
When compression often occurs
Typically, the most common examples of squeezing are considered to be the presence of a single-handle faucet. The fact is that there is a cartridge installed inside it, which regulates the water by stirring each time the lever is raised.
Squeezing water in a mixer Source sdelai-lestnicu.ru
If the elements inside the structure are not pressed tightly, then mixing of water of different temperatures occurs without the participation of the owner of the house. Therefore, first of all, when such a situation arises, you need to disassemble the tap and inspect the internal faults.
Also, when the house has a hygienic shower, mixing is also possible, since the design consists of three locking devices. The first two are the cold/hot water mixer, and the third is the start button on the watering can. It is designed to adjust the water supply temperature at one time.
This suggests that the mixer is always on, and while the water reaches the edge of the watering can, it is gradually replaced by one that has a higher temperature. So, after pressing the button, a stream of hot water may temporarily appear, but it will later stabilize. For your own safety and the safety of your neighbors, you also need to place a check valve in this design.
Important! Be careful when opening the faucet a little later after using hot water. Even if you switch the handle to the cold side, and there is still boiling water inside the tube, it will come out of the tap first. This can cause burns.
Hot water coming from a cold tap Source pravdaurfo.ru
Water heating method
Manufacturers produce several types of devices.
Gas units
Consumers whose homes are equipped with gas communications often install heaters (speakers) that run on this energy source. They are popular because of their efficiency and cost-effectiveness: the unit itself is not that expensive and gas costs the population much less than electricity.
Gas water heater
Important! When installing devices of this type, it is necessary to provide for the removal of gas combustion products to the outside of the building.
Electric water heaters
Units belonging to this category are equipped with tubular electric heating elements (TEHs), which heat the water. The rate of its heating is determined by the power of this device. You can install such models yourself; you do not need to obtain any permits for this. But compared to gas analogues, their operation costs the consumer much more.
Electric instantaneous water heater
The two types of devices discussed above are among the most common. However, other types of heaters can also be used.
Indirect heating water heaters
In houses where heating equipment is installed in the form of boilers running on gas, solid fuel or electricity, there is no need to install additional devices that heat water. In this case, indirect heating heaters (boilers) are used, which do not have an energy source, but receive heat from the heating system. Such units are usually characterized by high power.
Prices for instantaneous water heater
instantaneous water heater
Indirect heating boiler
Important! The power of the installed boiler must be sufficient to heat the building and heat the water.
Solid fuel equipment
The most primitive units for producing hot water are devices that use the energy released when burning solid fuel (coal, firewood, etc.) as a power source. In this case, the consumer does not depend on gasification of housing and the availability of electricity. Solid fuel devices are among the simplest and most economical types of equipment. If desired, you can design them yourself.
Wood-burning water heater Opop LK 100
In addition to those listed, heaters that use other sources, such as solar energy, can also be used.
solar water heater
Popular models
Our market offers water heater taps of Russian, Chinese and European origin. Firms offer models designed for all segments of the population. Regardless of the cost, all types do the job well - they heat running water quickly and safely.
The most popular models of heated taps:
- Delimano;
- Sapretto;
- Aquatherm.
These are affordable and reliable devices presented on the Russian market.
Delimano
Instant heating taps from an Italian-Ukrainian company are made in China. The power cord is connected at the back, and the water temperature is adjusted using the side handle. Blue and red marks indicate the operating mode. The lever rotates left and right, can be used for 2 sinks. Both hydraulic and electronic versions of the flow heater are available.
The compact vertical housing takes up little space, can be used as a backup heater, suitable for cottages, new buildings, as long as the central hot water supply system is not connected. The manufacturer offers various modifications designed for small and large volumes of water consumption.
The wall-mounted water heater with a display is equipped with a hose, a shower, and a powerful heating element. Such samples have a reinforced heater, a more powerful protection system against overheating, “dry” operation, and water hammer. Flow models are equipped with electronics; operating parameters are displayed on the screen.
Supretto
The stylish heater is made in Hong Kong. The vertical body is cylindrical in shape, white with silver trim. Temperature adjustment is done using a side lever. The electrical cord is connected at the bottom. Suitable for small volumes of hot water. Models are not equipped with a shower; they are installed on a countertop or on a sink. Dense plastic protects the body from water hammer, the flow rate of cold water is 1.5 l/min, heated to 50°C – 1.3 l/min. works from a standard network of 220-240 V, the wire length is 1 m, so you need to think about connecting to the outlet.
Supretto produces the same models as Delimano, but under its own brand. Like Delimano, there are more expensive models with a display.
Aquatherm
A review of popular models is impossible without a representative of domestic production.
A flow device from a Russian company has a horizontal or vertical body. The buyer can also choose the color of the heater. The manufacturer offers samples with long and short drainage, a hose with a shower head, and electronic temperature control. Medium-power equipment heats water up to 60°C, operates from a 220 V network. The price of the faucet depends on the model - the consumer can choose a model that is suitable in terms of power and design. This is a successful combination of affordable price and high quality.
Operation method
Important! The big advantage of water heaters is the purity of the supplied liquid. In a centralized hot water system, water sometimes contains additives that are not safe for humans, which can cause health problems (they are especially harmful to the skin).
The vast majority of devices used for heating water are of two types.
Cumulative
Devices of this type are a reservoir with a heating element, which makes it possible to provide the consumer (and simultaneously several points from which water is drawn) with a sufficiently large volume of hot water. However, its initial heating takes time (usually a quarter of an hour). Subsequently, the water is constantly heated to the required value. The container volume can range from 5 to 300 liters. It is possible to select a suitable unit depending on the design. They can be hung on walls or placed on the floor, they are vertical and horizontal, and have a flat or cylindrical shape.
Electrolux EWH 30 Formax - electric storage water heater with enameled tank in a rectangular design
When operating this type of equipment, it is necessary to take into account some nuances:
- space is required to place the tank;
- if water stagnates for a long time in the tank, such water cannot be used for cooking, much less drunk, as bacteria may appear there (it is recommended to periodically heat the liquid to maximum temperature values, and also choose models that have a special coating that protects against the growth of bacteria);
- if the device is not used for a long time, the water has to be drained (especially if the owners leave for the winter).
Scheme of a gas storage water heater
It is more expedient to install storage-type equipment where there is no centralized hot water supply.
Flow-through
Installing devices of this type is the most effective and simple way to provide consumers with hot water. Their power varies between 2...15 kW.
Instantaneous water heater for tap
Pressure models can be installed in a riser, which allows you to provide heated water to all water intake points in the house. Non-pressure devices, which are among the simplest and most popular, are mounted directly on the tap and put into operation after it is opened.
Flow devices consume more energy, and they are also dependent on its availability at the time of switching on. However, they are compact, easy to manage and cost less than their storage counterparts. Some energy savings are provided by the lack of energy consumption at rest.
Flow-through water heater with LCD screen and temperature sensors
Today, hybrid technology is also produced - flow-storage water heaters. These units are capable of quickly heating water (which characterizes flow-through varieties) and storing it in a tank. However, devices of this type are not so often found on sale due to low consumer interest. This is due to their high cost and design complexity.
When choosing a water heater for an apartment, as a rule, flow-through models are installed
An instantaneous water heater, powered by an electrical network and installed on a tap, is one of the very popular devices today. It is especially convenient to use a device that instantly heats water during periods of scheduled outages. This device is the most compact of the line of electric water heaters. The feasibility of its installation is determined by the conditions and intensity of use.
What is inside?
The heating element and power cable are hidden in the body of the water heating faucet. Water flows in a spiral and begins to flow out approximately 5-10 seconds after turning on the device. During this time it reaches the desired temperature. To adjust the pressure and temperature, there is a special knob on the body of the product.
Directly under the body there is a switch and an indicator light . The device is connected to the water pipe with a special screw, and is additionally fixed under the sink with a coupling.
In addition to the basic configuration, some models of heater taps are equipped with:
- Filters for coarse cleaning;
- Aerators (sprayers) for economical water consumption.
How does a flow-through electric heater mounted on a faucet work?
The design of the device is not complicated. The device is a mixer with a built-in electric heating element, passing through which the water is heated to 40...65 degrees.
Prices for indirect heating boiler
indirect heating boiler
Installation of an instantaneous water heater on a tap
Equipment working with water and electricity must be reliable and safe. For this, the heater has additional elements:
- a residual current device that ensures the user’s electrical safety (protects against electric shock if the integrity of the housing is damaged or the heating element fails), as well as the safety of the device in the event of voltage surges;
- water overheating thermal sensor, which turns off the power when the water temperature exceeds a certain level (for example, 60 degrees);
- dry-running protection relay, which turns off the power in the absence of water supply (protection against operation without water);
- silicone gasket that softens water hammer;
- a mesh filter that prevents the entry of solid particles that can damage the device.
Internal structure
All elements of the heater are enclosed in a waterproof housing.
Using the control knob, you can select the water pressure, adjust the power, and switch the supply of cold or hot water.
What are the benefits of this type of device?
- The heater is simple to operate: just open the tap and in a few seconds hot water will flow.
- The water heats up within 5...10 seconds;
- The equipment is very compact and aesthetically pleasing.
- You can install the heater yourself, without inviting specialists.
However, the water pressure in a tap equipped with a flow-type heater is limited to 1.5...6 liters per minute. In winter, as a rule, the water warms up to lower values (maximum 30...35 degrees). This is due to the fact that equipment with low power is able to increase the water temperature by only 25 degrees.
Such a device still has low power.
Expert opinion: Masalsky A.V.
Editor of the “construction” category on the Stroyday.ru portal. Specialist in engineering systems and drainage.
To connect the heating device, a separate cable line is required, which is caused by the high load on the electrical network. The disadvantage is that it is difficult to restore the device in the event of a breakdown, since components are not so easy to find.
Installation subtleties
The tap-heater of running water is installed on a cold water supply. Certain models can also be connected to hot water supply, then the tap can be used both as a regular mixer and as a heater, depending on the prevailing conditions. Technically it looks like this :
- Grounding and a separate branch of electrical wiring are done. The required cable size is at least ½ inch.
- A connecting coupling is screwed to the pipeline, the coupling is brought to the sink or bathtub, and a heater tap is screwed into it.
How to choose the right device
When considering equipment options, there are a few things to keep in mind. Spirals placed inside a copper tube are preferable as a heating element. They are less covered with scale, but repair and replacement of such products are quite expensive.
Choosing the right model
The most important indicator of the effectiveness of the purchased device is its power. It should be understood that a low-power device does not have the ability to bring a large volume of water to the desired temperature within a short period of time. Therefore, to prevent hot water flowing from the tap in a thin stream, it is better to pay attention to models with a power of 3...3.5 kW. Higher figures should also not be considered, otherwise the costs of electricity and power line maintenance will not allow you to fully experience the joy of your purchase.
It is also important to consider the following points:
- installation method;
- features of device operation control;
- presence of all required protective elements;
- aesthetic characteristics of the equipment (the variety of models offered allows you to choose a suitable electrical device for any style of room design).
When choosing, you need to consider a number of points:
The equipment must be reliable and wear-resistant, made of high-quality materials. The purchase price is also important (it is worth noting that the cost of devices of this type is quite low, especially compared to storage heaters) and the brand under which it is released. Today, the most popular models on the market are those produced by domestic manufacturers and Chinese companies.
Table. Comparison of characteristics of flow devices mounted on a tap.
| Name | power, kWt | Maximum water temperature, degrees | Pressure, bar | Material |
| UNIPUMP BEF-001-02 | 3 | +60 | 0,4…5 | Plastic |
| Instant Electric Heating Water Faucet Supretto | 3 | +60 | 0,4…6 | Plastic with metal inserts |
| Aquatherm KA-008 | 3 | +60 | 0,4…7 | Composite plastic |
| Potato P0051 | 3 | +60 | 0,4…6 | Stainless steel |
| Atlanta ATH-7423 with shower | 3 | +85 | 0,4…6 | Plastic |
Important! Heaters should be purchased from trusted suppliers who supply the products complete with installation instructions and a warranty card.
Advantages and disadvantages of the device
An electric kitchen faucet, like any other appliance, has its positive and negative characteristics. Let's start with the positives:
- Economical. An electric faucet will save you a lot of money. This characteristic is useful when the device operates in combination with water heating boilers that use electricity to heat water. Also, on the mixer it is possible to set an economical operation mode, which will allow you to spend much less water;
- Safety. We can safely say that in the process of bathing or washing your face, you have virtually no chance of getting a thermal burn. Such concepts as too hot or cold water will disappear forever - you will not get burned and will not plunge into icy water;
- Increased comfort. If dramatic changes occur in the water supply system (in terms of pressure and temperature changes), everything at the outlet of the tap will remain the same. The temperature and pressure you set will remain at the same level without undergoing any changes;
- Reliability. It is very difficult to malfunction a mixer with a thermostat, and even if this happens, manufacturers provide serious warranties (from 3 to 5 years), which allows the device to be repaired free of charge, in short periods of time.
We've sorted out the advantages. As for the disadvantages, they all boil down to one thing - the high cost of the product and components. But if you ask those who use geysers and experience constant problems with pressure, for them the purchase of an electrically heated mixer is a real event that solves many household problems. Also, it is worth noting the fact that the price of an electric faucet with a thermostat is not much different from the cost of a simple mixer.
TOP 10 best instantaneous water heaters for taps
| Photo | Name | Rating | Price | |||
| The best instantaneous water heater for a garden tap | ||||||
| #1 | Poseidon 3000 W | ⭐ 4.95 / 5 1 - voice | Find out more | |||
| #2 | Aquatherm KA-006G | ⭐ 4.9 / 5 | Find out more | |||
| #3 | Unipump BEF-001 | ⭐ 4.85 / 5 | Find out more | |||
| The best instantaneous tap water heater for home | ||||||
| #1 | Electrolux Smartfix 2.0 T | ⭐ 4.95 / 5 1 - voice | Find out more | |||
| #2 | Aquatherm KA-001 | ⭐ 4.9 / 5 3 - votes | Find out more | |||
| #3 | Timberk WHEL-6 OSC | ⭐ 4.85 / 5 1 - voice | Find out more | |||
| The best instantaneous tap water heater for the kitchen | ||||||
| #1 | Delimano | ⭐ 4.95 / 5 | Find out more | |||
| #2 | Unipump BEF-012-02 | ⭐ 4.9 / 5 3 - votes | Find out more | |||
| The best instantaneous water heater for a bathroom faucet | ||||||
| #1 | Supretto water heater tap with shower head | ⭐ 4.95 / 5 2 - votes | Find out more | |||
| #2 | UNIPUMP BKF-015 | ⭐ 4.9 / 5 1 - voice | Find out more | |||
Which instantaneous water heaters would you choose or would you recommend purchasing?
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Voting: which instantaneous water heating tap is the best?
Which instantaneous water heaters would you choose or would you recommend purchasing?
Poseidon 3000 W
8.33 % ( 1 )
Aquatherm KA-006G
0.00 % ( 0 )
Unipump BEF-001
0.00 % ( 0 )
Electrolux Smartfix 2.0 T
8.33 % ( 1 )
Aquatherm KA-001
25.00 % ( 3 )
Timberk WHEL-6 OSC
8.33 % ( 1 )
Delimano
0.00 % ( 0 )
Unipump BEF-012-02
25.00 % ( 3 )
Supretto water heater tap with shower head
16.67 % ( 2 )
