Boilers are gaining more and more popularity, it is becoming increasingly difficult for a buyer to make a choice. The storage water heater has storage properties - this is an important quality for saving energy. Which device is better to choose for a summer residence or apartment, read in our publication.
The principle of operation and the device of the boiler
Before choosing a model, you need to understand the features of the work. The accumulative type technique is a metal tank, the volume may be different. Inside the walls are coated with enamel, which protects against corrosion. It contains a heater and a magnesium anode. Outside it is covered with a layer of thermal insulation, the body is made of sheet metal.
Water pipes are connected to it. Water accumulates in the tank and heats up to the set temperature. After that, the heater is periodically turned on for heating, and thermal insulation minimizes losses.
The circuit diagram of the electric water heater:
There are gas fueled models. The design of the tank is similar to the electric one, but instead of the heating element there is a heat exchanger inside - a coil made of steel, brass, copper. A coolant circulates in it, which is heated by a gas burner located below. Above is an exhaust hood, through which the products of combustion are discharged.
Scheme:
Advantages and disadvantages of storage heaters
The advantages of electric boilers:
- A small working capacity does not create a load on the wiring.
- Possibility of placement vertically and horizontally.
- Safe and easy operation.
- Devices with dry heating elements are not subject to scale.
Of the disadvantages is prolonged heating.
Consider the advantages of gas technology:
- Accumulative will work stably even in case of failures in the gas or water system.
- Simple design and convenient operation.
- Fast reaching temperature. Gas can heat 150 liters in 1 hour. Electric will need 3 to 4 hours.
Minuses:
- High cost and installation complexity.
- Connection to gas is carried out by a specialist.
Features of choice
How to choose the technique that suits your home? It is necessary to consider the following parameters:
- Spaciousness.
- The energy of heating.
- Power.
- The design of the heater.
- Features of fastening.
- Inner coating.
- Functionality.
Since the assortment is wide, you can choose the right one for the price.
Tank volume for water heating
What affects the choice:
- Destination
- Number of persons.
- Availability of free space in the room.
Decide what you will use the boiler for. If you need to install it in an apartment for permanent use, showering and household needs, select a volume of 80-100 liters. Since the bathrooms are small in apartments, the tank will not fit in a larger volume.
For a private house, you can choose 100-120 liters. For a summer residence or kitchen, choose a volume of 30-50 liters - enough for washing dishes. Small 10-15 liter models can be placed under the sink.
The table will help you calculate the consumed volume:
Heat
If you have conducted gas, you can install a gas water heater. It is more economical and warms up water faster. Please note that you will have to get permission to install. Self-assembly is prohibited due to loss of warranty and a fine.
Electrical equipment can be connected with your own hands. Although the water reaches the set parameters for longer, the thermal insulation maintains heat and ensures minimal energy consumption. Today, electric appliances are the most popular.
Power consumption
It depends on the volume of the tank. The larger it is, the more expensive. Standard range: from 1 to 3.5 kW. If you have old wiring in your apartment, stop on the device up to 2.5 kW.
TENA design
The usual element is made of copper, inside is a nichrome thread. This is a submersible type, which is also called "wet".It is constantly in contact with water, which is why it is scaled. For normal operation, the part needs to be cleaned once every six months.
A device with a “dry” TEN is more expensive. This element is a tube that is hidden in a protective case. Since it does not come into contact with water, it serves much longer.
In the latest models, two parts are installed. They can replace each other or work in pairs.
Pressure and non-pressure type
Pressureless (open) are independent of the pressure in the system. They are located above the intake point for normal water flow.
Pressure (closed) type are mounted in the water supply system. Provide several points of a fence and are equipped with a system of protection against high pressure.
The principle of placement and fastening
The shape of the case is:
- Rounded cylindrical.
- Narrow and flat.
By the principle of placement:
- Wall mounted (vertical, horizontal type).
- Floor standing.
To make the right choice, start from the area of the room. A flat horizontal container will take up the least space, especially if placed under the ceiling.
The larger the volume of the tank, the greater the load it creates on the walls, so when buying a boiler from 200 liters, choose the floor type of installation.
Tank wall coating
This is an important point, since there is always liquid inside. The water heater is subject to destructive factors:
- Temperature differences.
- High pressure.
- Impurities, resulting in corrosion and scale.
In addition to the anode, the wall is protected by a layer:
- glass porcelain;
- enamels;
- titanium;
- stainless steel.
Products with a titanium coating receive the greatest guarantee - from 7 to 10 years.
The latest coatings boast finely dispersed impregnation of silver, which provides hygienic functions.
Management and functionality
Simple models are equipped with mechanical control. There is a temperature controller on the case. The thermostat controls the heating process.
Electronic includes a control unit. Regulation can be performed using keys or touch buttons. The display shows the set parameters. Special sensors monitor the processes, which are reported to the module.
The electronic type allows you to more accurately configure, save the specified parameters. However, it is more prone to malfunctions than mechanical.
We examined important aspects of the choice of technology. Let us dwell on the characteristics of individual models.
The best accumulative boilers. Rating 2017
Having studied customer reviews, we compiled a rating of popular water heaters.
Timberk SWH RS7 50V
50 liter electric boiler Great choice for a summer house or a small bathroom. The narrowed cylindrical body with dimensions of 29 × 118.5 × 29 cm will take up a minimum of space. The tank is made of stainless steel and equipped with a magnesium anode.
A copper heater of 2 kW heats water to 75 degrees. Mechanical control, you can enable accelerated mode. The device is connected to a standard outlet, an RCD circuit breaker is included.
Weight - 13.5 kg.
Price - from 12 000 rubles.
Alexander
I decided to buy a water heater when I finally got public utilities. Water, even if there is, is not hot, but slightly warm. He stopped at the SWH RS7 50V because of the compact design and ease of operation. Fundamentally did not want to take fancy electronics. Connected independently. Everything necessary is included in the package: anchors, non-return valve, UZO. Now I feel like a man in the 21st century.
Ariston ABS PRO ECO PW 120V
The design, designed for 120 liters, does not take up much space thanks to a thoughtful design. Dimensions "Ariston": 45 × 110.8 × 47 cm. This model is also represented by the Ariston ABS PRO ECO 80 V Slim variant - it features an elongated narrow case and a capacity of 80 liters.
Features of the technique:
- Steel inner container coated with Silver Protection. A speck of silver keeps the water clean, prevents the development of bacteria.
- Two TENA with a total capacity of 2.5 kW. One of them works at 60 ° C, the other at 70 ° C.
- The ECO function keeps the level of 55 ° C, which saves electricity and reduces the likelihood of salt deposits.
- The Extra Power / Double Power function - the accelerated heating.
- Protection against overheating, switching on without water, high pressure, short circuit.
Weight - 33 kg.
The cost is from 10,000 rubles.
Irina
In some cities, hot water flows directly from the tap. But this is not our case. Each apartment in our house has a water heater. For a long time with her husband they chose which company to give preference to. We stopped at the ABS PRO ECO PW 120V from Ariston. It has been in operation for three months, and we are satisfied with the work. Heating is good and stable, although it is not even turned on at full power. For 4 people enough to take a shower. Recommend.
Thermex Sprint 80 SPR-V
Pressure unit with a volume of 80 liters.
The relatively inexpensive model is equipped with increased security:
- The steel tank is coated with bioglass porcelain. The material protects against corrosion and has antibacterial properties.
- There is a temperature limit.
- A magnesium anode is installed.
“Termex” has a 2.5 kW tubular heater. It has a TURBO BOILER function, which allows heating in 15-20 minutes. In normal mode, the average time is 1 hour 45 minutes. A simple rectangular case is quite compact: 36.6 x 37.8 x 109.6 cm.
Price - from 10 000 rubles.
Danil
I am pleased that I bought this water heater, since it has been serving me for 5 years. I turn on the "Turbo" mode and after 15-20 minutes I get a hot stream. True, the pressure relief valve is weak, not everything drains. I recommend immediately installing a cleaning filter, then the equipment will last longer.
Electrolux EWH 10 Rival U
This closed-type storage boiler is able to provide several intake points with a hot stream. Despite the small size - 27x38x27 cm, 10 liters in 75-40 minutes reach 75 degrees. Power is 1.5 kW. The Electrolux will fit even under the sink.
Features:
- The Eco mode warms up to 55 ° C. When they do not settle salt on the surface of the parts.
- For the manufacture of the tank used low-carbon stainless steel.
- Thermal insulation made of foamed polyurethane is laid with a layer of 22 mm.
Weight 4,5 kg.
Cost - from 3 690 rubles.
Vasiliy
The device is compact with a flat bottom, so it just got under the sink. I have been operating for two years. During this time there were no problems with work, only one cleaning. When I heard crackles, I took it apart and found a pile of scum at the bottom. Interestingly, the heating elements and walls were clean. After cleaning, it continues to work as usual.
Gorenje OTG 80 SL B6
Provides quality pressure to several points. If you need to make wiring for a shower and sink in the kitchen, this is a great option. Capacity - 80 l, internal coating - enamel. The advantage is that it does not absorb odors from the water.
In the presence of two copper Tena of 1 kW each. It reaches 75 ° C in 1 hour 85 minutes. The mechanical thermostat is responsible for switching. There is protection against overheating, high pressure, anti-freeze mode.
Rectangular in shape, dimensions: 42x95x44.5 cm. Weight - 31 kg.
Price - from 7,000 rubles.
Alexei
Simple design without unnecessary details. For six months, there are no complaints. The boiler is installed in the toilet, its body does not become hot and does not heat the air in the room. Thermal insulation is excellent. Management is convenient: once set the temperature on the controller and forgot. It operates quietly, without extraneous sounds. For its price, an excellent unit.
Polaris AQUA IMF H
The flat body of 30 l is mounted in a horizontal position. The tank is made of AISI 304 steel, which is resistant to corrosion. The manufacture of the device using the SPLIT TECH technology (separation into two sections) gives it such advantages:
- The absence of internal nozzles and seams reduces the risk of leakage.
- Fast heating and heat preservation.
- There is no mixing of hot and cold water.
- Simplification of service.
Copper TEN with a power of 2.5 kW. A maximum of 75 degrees is reached in 44 minutes. The kit includes an RCD.
The cost is from 11,000 rubles.
Haier ES15V-Q1 (R)
Modern stylish equipment 32.7 × 40.2 × 33.3 cm can be mounted near the fence point.It occupies a minimum of space and is an effective filling of the kitchen. The capacity of 156 liters is enough for domestic needs: washing, washing hands, dishes. The steel element (2 kW) is protected by a magnesium anode. The temperature reaches + 75 ° C.
Safe Care technology protects you against current leakage. Memory mode allows you to save the latest control changes. The heating timer turns off at a convenient time. The safety valve relieves excess pressure in the system.
It weighs 9 kg.
The price starts from 4 000 rubles.
Fedor
ES15V-Q1 (R) has been hanging in the bathroom for a year and a half. I use during seasonal shutdowns, I alone have enough to wash. Heats the contents well and quickly. After 10 hours, the water is still warm. I am satisfied with the device, the only thing I do not like is the lack of power switching. That is, as turned on 2 kW, and consumes.
Bosch Tronic 1000T ES100-5
The closed type device with a capacity of 100 liters is able to provide several points. Mechanical control, the regulator is hidden under the lid, blocking access from children. The inner walls are covered with glass ceramics. The material is chemically neutral, not subject to destruction from pressure drops or temperatures.
TEN (2 kW) brings to a mark of 70 ° C. The tank received a five-year warranty, electronic components - a two-year one. Dimensions: 44x93x46 cm.
The cost is from 7,000 rubles.
Darya
Well placed in our small bathroom. It reaches the set temperature in 2 hours. The regulator is installed under the cover, which is good when there are small children, but it is inconvenient in daily use. The operating time is more than a year, there are no complaints. Budget working device.
Baxi SAG3 100
100 l gas storage water heater. It can work both on main gas and can be connected to a cylinder. Thanks to good thermal insulation, the device gives a constant temperature of up to 70 ° C. It can work even with reduced pressure in the gas line.
The tank is made of steel, enameled inside. The combustion chamber is open. Reliable stainless steel burner. It is started by piezo ignition.
Safety devices: draft sensor, thermocouple, thermostat, pressure relief valve. Wall mount. Dimensions: 44x114x44 cm.
Price - from 41 000 rubles.
Choose the best technology for your home. Customer reviews and detailed model specifications will help you.