Boilers of various designs and varieties have gained great popularity among consumers. This is due to the fact that in the summer, domestic utilities quite often turn off hot water. Yes, and in settlements where houses are not connected to the central water supply, consumers also acquire similar equipment. A person’s desire to live comfortably even away from the city makes the water heater practically indispensable in rural areas.
When used correctly, the efficiency of the water heater is quite high. Its power is higher than that of an electric boiler. This directly affects the rate of water heating. Therefore, experts recommend a closer look at gas water heaters, which is especially true if the family has small children.
Varieties of gas water heaters
Having familiarized yourself with the assortment of the modern market, you will be able to understand that a gas boiler can be accumulative or flowing. In the latter case, the device will be able to provide water almost instantly. This type of water heater is also called a column and is more typical for Russia. If you still have not decided which geyser is better, then it is worth taking a closer look at flowing models, since they are devoid of an accumulation tank, so hot water can be obtained in unlimited quantities.
In such systems there is a direct-flow circuit using a heat exchanger, in which case the heating is provided by a gas burner. If we consider the old models, then in them the wick burns constantly, while modern columns use electric ignition. If you purchase a powerful gas water heater, it will be able to provide several points at once with water. It is difficult for electric flow heaters to cope with such tasks. This will require a separate power input, which is quite expensive and not always possible. Therefore, many consumers consider such a boiler to be preferable.
Accumulative gas water heater, as practice shows, is not so popular. If we are talking about housing in a city with a regulated gas supply, then such devices are almost never found. As a rule, they are installed where the highway is weak or completely absent. Therefore, such aggregates quite often turn out to be rural or country.
Such devices have their drawbacks. For example, a storage boiler provides for continuous tank cleaning. Another minus is expressed in the search for a place to install equipment. If you need a rather impressive amount of water, then a 200-liter capacity in the bathroom will look unsightly.
Sometimes it happens that a flow column changes to a storage one. In this case, consumers may expect trouble. The property owner will have to coordinate the transfer of the device with the gas service and take care of the construction of the chimney. It is troublesome and expensive. However, such a water heater has its advantages: if you install it, then you can solve the problem with temperature drops and water pressure.
Design features
Flowing gas water heater has the following components in the design:
- traction detector;
- gas burner;
- outlet pipe;
- exit for a chimney;
- heat exchanger;
- regulator of water intake;
- overheat detector;
- gas flow regulator;
- collector for combustion products;
- gas pipe;
- outlet pipe for cold water.
Such devices have compact dimensions, which are due to the small gas burner and the lack of a hot water tank. Install units even in small rooms that are equipped with a ventilation system. Boilers have low performance, and to connect several points of water intake to the hot water supply system, you need to purchase a device with high power. Such speakers are great for urban apartments.
Accumulative household gas water heaters have the following components in the design:
- gas check valve;
- water temperature adjustment;
- ignition gas wick;
- nozzle of the main gas burner;
- thermal insulation of the tank;
- damper.
To supply water, use the adjustment knob. There is a gas burner in the design , as well as a thermocouple. The inner part is protected due to the application of a special coating on its surface. The storage heater is not complete without an external protective casing. To prevent corrosion and scale, the device provides for the presence of an anode.
The manufacturer includes a divider as well as a swirl of water flows in the system, which ensures intensive mixing. Hot water exits through the pipe. There is also a traction stabilizer in the system. When the column is not used, it must be freed from water, for this a drain valve is used. A pipe is also used to supply cold water.
If the system is in need of a reset, it will use the valve seat. For the stabilization of traction, a separate device is responsible. Accumulative gas water heaters for an apartment have an impressive size. The volume of the tank can vary from 50 to 500 liters.
What else you need to know
To receive hot water every time there is no need to turn on the device. The tank is well insulated, which allows it to retain heat for a long time.
Heat exchangers are more efficient. Among the main disadvantages, it is worth highlighting the impressive dimensions that force the units to be installed in special boiler rooms, in attics or in basements. The large weight of the tanks filled with water requires reinforcing the floors and preparing the concrete base. Such heaters are usually used in private homes and cottages, where there are many points of water intake.
Varieties of boiler boilers
Gas boiler boilers are used in everyday life more and more often. They are divided into single and dual circuit. Among other things, such devices can be classified on a model with a closed combustion chamber and natural draft. The latter variety during operation requires a chimney, which must be present in the room. In products of the first type, the combustion products go through a fan, for which you can use the ventilation systems of private houses and apartments. Therefore, such boilers are common in multi-storey buildings.
Installing a boiler boiler
A gas boiler for heating water is installed in consultation with the gas service. Wall-mounted models are attached to a vertical surface using self-tapping screws. The wiring is mounted from below. The pipe with cold water is equipped with a layer of insulation to prevent condensation.
To protect against scale, it is recommended to use a magnetic transducer, which is installed on the column input. Such a device provides comfort during operation of the boiler. To connect the gas, you need to buy a special hose, and to relieve pressure in the system, you must take care of the presence of a safety valve. At the final stage, the boiler is connected to the mains.
Installation of a gas column
The installation of gas equipment requires the master to have a certain set of tools, among which should be highlighted:
- open-end wrench;
- adjustable wrench;
- sealant;
- soak.
A good home master usually always has these items. But to install the column, you should additionally purchase a galvanized pipe, a socket ring, a gas hose, dowels, a coarse filter. The galvanized pipe should have a thickness of 1 mm. Mounting the column on the wall can be done with dowels. The life of the new gas equipment will depend on the quality of the filter.
Mounting Features
The installation of gas equipment requires preparatory work. To do this, points on the wall are marked under the mounting. The chimney pipe should extend 50 cm vertically. This is true for rooms with a ceiling height of 2 m. If the ceiling height reaches 2.7 m, the chimney pipe height will be 25 cm vertically.
At the next stage, using a PVC pipe and connecting hoses, it is necessary to connect the water supply to the output and input of the device. When working with hoses, towing is not required. After the installation of the pipeline is completed, it is necessary to open the taps on the column and check if leaks are present. If any are found, squeeze the hose retaining nuts. However, zeal is not necessary, as there is a risk of damage to the gaskets.
Methodology
When a gas flowing water water heater is installed , in the next step it will only be necessary to bring gas to the device. For this, a flexible hose is used, one end of which is screwed to the gas valve, while the other to the gas inlet to the device. Compounds should be crimped and then treated with soapy water. By opening the gas, you can check if there are bubbles. If not, then all the work was done correctly.
The principle of operation of the water heater
In water heaters of any design, the principle of operation is that the burner is ignited by the igniter when a flow of water appears on the nozzle. This happens when the tap is opened. The water unit trips and the gas valve delivers fuel to the burner. It is ignited by the igniter and warms up the heat exchanger. The latter is made of copper sheet. Water passes through the coil, gets heat, and then goes to consumers.
Homemade water heater
Specialists do not recommend using a homemade gas water heater. As practice shows, this often leads to tragedy. If you still could not decide which gas column is better - flowing or storage, then you can consider the theory of the self-production of such a device.
The essence of the design is to use the heat of the burning burner, which is uselessly warming the lower pan. For work, the heat exchanger should be bent out of the copper tube, turning it into a loop surrounding the burner. The heat exchanger loop must not be located directly in the flame. The free ends of the hinge should be connected with rubber hoses to the container above the sink or sink.
Final work
In order to reduce heat loss, the tank must be insulated, for this the tank is placed in a hanging cabinet, and the free space is filled with foam. Insert a tube with a tap into the container and connect it to the hoses of the heat exchanger. On this, we can assume that the water heater is ready for operation.