The best small geysers. Which geyser is better: reviews from experts and customers
Dramatic changes will occur in the kitchen if you replace old equipment, in particular, the column. The apartment will become more comfortable and nice.
Choose the best option
Even if the kitchen is small, the column will not be cramped and will harmoniously complement the space. The new speakers have many differences from the speakers of previous years, and they will immediately become noticeable. Among them:
- compactness;
- variety of design;
- automatic igniter;
- protection system.
Each manufacturer tries to conquer customers with the strength of parts, build quality, and supplement the design with relevant functions - proprietary features. The advantages of operation, service, and maintenance increase the demand and profit of the enterprise. In addition, geysers should be beautiful. Not only technical, but also external parameters matter. After looking at the photos, it’s easy to understand whether this model is worth buying. Certainly, technical specifications More importantly, any gas equipment must be safe. A kitchen simply must be beautiful and inspire.
The New Year brought a lot of changes
Rating geysers 2016 is losing its relevance, and it's time to compile a new one, which includes models that were popular in 2017. What New Year brought to customers, what has changed? Taking leading positions in the ranking of the best geysers of 2017 is not so easy.
The main criteria, of course:
- price;
- quality;
- reliability;
- uniqueness.
In the past year, the usual price remained the same, the quality remained the same, new equipment was released, and fashion changed.
Who is the leader? First things first. In first place are geysers with an electronic display. The reviews about them are the best, it’s worth considering purchasing.
Such a rational, practical addition as a display is not yet available in every model. Some people need it, some don't. This part does not particularly affect the quality, reliability, or durability of the product. It guarantees a dialogue with the equipment. The water temperature is visible, which is easier to regulate. At the same time, geysers do not change their dimensions, they remain compact, which is what people like most, perhaps. An electronic display is a step towards the future, therefore, it is models with a built-in display that open the 2017 reliability and quality rating of geysers.
The Russian speaker “Neva 4510-M” has an electronic display. It certainly makes a difference. It is much easier to control the operation of equipment thanks to this innovation. In addition, flow-through geysers “Neva 4510-M” heat 10 liters per minute, the power is 17.90 kW, and there is an overheating protection system. Quality and reliability are the hallmark gas equipment of this manufacturer.
Both the dimensions and the design of the case are attractive in this model - they evoke sincere sympathy. The Beretta, for example, is not so elegant, although it is not inferior in other characteristics and is just as practical. If a person likes surrealism and its fantastic images, then it is better to choose the Beretta brand. But if you prefer the classics, then you should opt for the “Neva” column, which you will undoubtedly like better.
The price of the Neva is also tempting. And if you can save money, there is no reason to refuse pleasant expenses. This is a good purchase, it’s hard to argue with this statement, because the speaker will last for many years without breakdowns. It is easy to use. Everything is provided in it.
The quality and reliability of German geysers Roda JSD20-T1 meet international standards. The country in which they are collected is China. The process is controlled, the result is verified, the factories are equipped modern equipment. This strategy guarantees a reduction in cost and makes geysers affordable. Interesting design, convenient arrangement of elements, electronic display, warranty service - all these are Roda JSD20-T1 geysers. This is a good choice, a popular model.
Geyser Roda JSD20-A1 is another popular model from this manufacturer. She looks very good. Others available color solutions, not just a white body. The apartment will be transformed. There is an electronic display. The cost is pleasantly surprising, and the rating of the best gas water heaters 2017 without the Roda JSD20-A1 would be incomplete. Power of 20 kW, electronic ignition, traction control sensor are just some of the characteristics of this wonderful gas equipment.
The top best geysers should include this model: Zanussi GWH 10 Fonte. This is a magnificent example of the well-known quality from the Zanussi company. It has an electronic display, and speakers with a pattern on the body are available in white. They are small and look very nice. The price is reasonable, operation will not cause problems, because many little details have been thought out in advance in the column. These are the convenient location of the handles, the smoothness of the surface, the parameters of the hole that provides access to the igniter, and so on.
The quality of the materials from which the body is made, the details, the reliability of the design, the power of 18.5 kW, the heating rate of 10 l/min - all these are Zanussi GWH 10 Fonte flow columns. The rating without it would be untruthful, dishonest, unfair. This technique is in demand no matter what, because it is characterized by brightness and beauty. The apartment with it will become more comfortable and spacious, especially if the column from the USSR was working before.
Halsen WM 10
The rating continues with Halsen WM 10. Reviews from people who decide to buy this model promise success for all buyers. There are practically no disadvantages - tested in practice. The speaker lasts a long time and is easy to operate. Breakdowns are rare, the quality satisfies the needs of even very demanding consumers. It should be included in the top best models.
Each new year of service of Halsen WM 10 will confirm its leadership status. The best flow-through geysers should be exactly like this. This ideal option for an apartment with both a small kitchen and a large one, for a home.
Electrolux GWH 265 ERN Nano Plus
The Electrolux GWH 265 ERN Nano Plus column, due to its small dimensions, does not take up much space. But with its design it still attracts attention, does not hide or hide, and boldly complements the space. It has excellent technical characteristics, which makes it worthy of the attention of buyers. Therefore, it is included in the rating of geysers for apartments, the best, most in demand. The company has been providing residents of different countries with high-quality gas equipment for many years. The prices will also pleasantly surprise you. The best options are not necessarily the most expensive.
Mora Vega 10
The Mora Vega 10 speaker is modest, characterized by restraint and rigor in design. There is no electronic display, but the quality is worthy of praise. The rating would be incomplete without her. This is an excellent option for kitchens of any size, with any design. It is easy to use, there is nothing superfluous in it. Mora Vega 10 will appeal to those people who value practicality and quality. This is a slightly conservative option, but reliable.
"Ladogaz" VPG 10E
A stylish column with an electronic display "Ladogaz" VPG 10E - it heats water up to 85 degrees, a throughput of 10 l/minute, a power of 19 kW and good price. That's why she is in demand. This is a rational decision, a profitable purchase. The column rarely breaks, but even when it does, finding the right spare part, original, appropriate, is not a problem. Customers trust this company, it is often recommended, and for good reason. For many years it will be she who will delight others with her proper work.
Gas water heaters solve the common problem of lack of hot water supply in a house or apartment. These portable water heaters with minimal consumption gas fuel capable of providing hot water living quarters of considerable area. The main advantages of such devices are their small size, the ability to heat a large amount of water, relative cheapness and maintainability. Among the disadvantages is the need for communications to connect speakers. At a minimum, it should be a gas pipe or cylinder, which not everyone has the ability to install, but for models with electronically controlled or electric ignition requires mains power. In addition, we are dealing with combustion products, so the installation of a chimney and ventilation is required, which complicates the installation of the device.
To choose a geyser with optimal parameters, you should pay attention to the following points.
- Depending on the power, the device can heat a certain volume of water. To service one circuit, it will be enough to buy a gas water heater with a power of up to 19 kW. If you need to heat a water intake at two points, then the model must have a rating of 20-28 kW. The most powerful water heaters (more than 29 kW) are capable of providing residents of a house or apartment with hot water in large quantities.
- If there are problems with the supply of gas or water, the solution would be to purchase storage geysers. They are equipped with tanks in which the reserve is stored. warm water. Thanks to the thermal insulation of the tank, gas consumption can be reduced.
- For safe operation modern speakers Manufacturers equip devices with different degrees of protection. The presence of a water flow sensor prevents the gas valve from opening when there is no flow. The thermal combustion sensor cuts off the gas supply when the wick goes out. The draft sensor stops the gas supply when the draft in the chimney decreases to a dangerous level. A water overheating sensor becomes a useful option; it not only prevents the formation of boiling water, but also reduces the amount of scale in the heat exchanger.
- Gas water heaters are controlled differently. Most often, models of the middle price segment have two control options. One of them regulates the water pressure, and the other is responsible for the intensity of gas combustion.
- An important parameter in water heaters is the type of combustion chamber and exhaust gas removal system. In open chambers, gas burns in the upper part of the column, from where it is immediately removed into the chimney. Sealed, closed-type combustion chambers look somewhat more expensive, but safer. The supply of air, as well as the removal of exhaust gases, is forced in such devices. In addition to fans, such models use coaxial chimneys.
The most popular among buyers are heaters from Bosch, Ariston and Mora. These European manufacturers are famous for their reliability and performance. Domestic speaker Neva is excellent value for money. In the rating we will compare the best geysers in various price categories.
The best inexpensive geysers: budget up to 10,000 rubles.
3 Neva 4510-M
Best price
Country: Russia
Average price: 7,100 rub.
Rating (2019): 4.3
The top three best geysers are completed by the model from domestic manufacturer Neva 4510-M. This is the most attractive option at a price, while also having decent functionality. Unlike other models, this water heater can work with both natural and liquefied gas, which makes it more versatile. The power of the device is 17.9 kW, and with a productivity of 10 l/min it can easily provide hot water to an entire house. Water intake can be carried out at several points, so you can use this geyser for several purposes at the same time. Like many models, it is installed vertically on the wall, and communications are connected from below.
Among strengths In reviews of the Neva gas water heater, buyers cite low cost, quiet operation and the presence of a thermometer. This water heater has several useful functions, for example, battery-powered electric ignition. This is convenient, since there is no need to connect the device to a power outlet, and the well-thought-out electric fuel ignition system requires a minimum of energy and does not require frequent replacement of batteries. The column starts working even with a minimum water pressure of 0.1 atm, which allows it to be used in almost any conditions. The weaknesses include the low quality of materials and, as a result, low reliability.
2 Bosch WR 10-2P
One of the most reliable geysers in the budget segment
Country: Germany
Average price: 8,900 rub.
Rating (2019): 4.5
The reliable Bosch WR 10-2P gas water heater takes second place in the rating among the best models in the budget segment. With a power of 17.4 kW, this device has a productivity of up to 10 l/min, while heating water up to 60 °C. The temperature is controlled via convenient mechanical rotary switches. You can find two versions of this dispenser on sale - P23 for natural gas from a gas pipeline and P31 for liquefied gas from a cylinder. Reliable protection against leaks is achieved due to an increased operating pressure range - from 0.1 to 12 atm. For the normal functioning of the device, an additional air duct is required, since an open-type combustion chamber is installed here.
The advantages of this Bosch water heater in customer reviews include ease of operation, small dimensions and quiet operation. In addition, installing such a device will not be a problem—it is not necessary to invite a specialist. The gas and water supply is carried out from below, and the column itself is hung vertically on the wall. A distinctive feature of this heater is piezo ignition, the operating principle of which is based on the ignition of fuel by a silicon spark. According to experts, it is an order of magnitude more reliable than an electric one, in which burnt-out components are a common problem. To determine the heating temperature, use a special thermometer located on the front panel of the heater. Among the disadvantages of this model are sensitivity to water quality and slightly overpriced.
A common question from owners of apartments and private houses: which is better, a gas water heater or an electric boiler? Each type of water heater has its own pros and cons, which the following table will tell you about:
|
Water heater type |
Pros |
Cons |
|
Geyser |
Compactness (a big plus for a small apartment) Unlimited hot water supply Maintainability Reliability Affordable price |
Complex installation that must be carried out by a specialist Installation approvals required Installation of chimney and ventilation required For stable operation, stable gas and water pressure is required Low efficiency |
|
Electric boiler |
Easy installation Increased security No chimney or ventilation required as there are no combustion products High efficiency (up to 99%) Ability to provide a large volume at a time hot water Does not depend on water pressure |
High price If the water in the boiler is completely consumed, you will have to wait at least 1.5 hours for the next portion. Large dimensions |
1 Electrolux GWH 265 ERN Nano Plus
The best compactness and functionality at an affordable price
Country: Sweden (made in China)
Average price: 6,600 rub.
Rating (2019): 4.6
In first place in the ranking of the best inexpensive geysers is the Electrolux GWH 265 ERN Nano Plus model. This instantaneous gas water heater is suitable for both apartments and homes. With a power of 20 kW, it can easily heat a large volume of water in a short period of time. The productivity of the device is 10 l/min, which is quite enough for a comfortable shower. In terms of cost, this is an average model, but with excellent characteristics. To operate the column, a minimum water pressure of 0.15 atm is required. At the same time, it is capable of withstanding up to 10 atm, with the maximum possible in a household network being 5-6 atm.
In numerous positive reviews Buyers talk about excellent power, high reliability and convenient operation as the strengths of this Electrolux model. The device is installed vertically on the wall, which significantly saves free space. The communications line is organized from below, which will be convenient for most apartments. The fuel is ignited using electric ignition. For safe operation The “gas control” function is responsible, which prevents any leakage of flammable substances. The disadvantages of this geyser include fine temperature control and high sensitivity to pressure.
The best geysers in the middle segment: budget up to 30,000 rubles.
3 Bosch WRD 13-2G
Optimal price/performance ratio
Country: Germany
Average price: 14,950 rub.
Rating (2019): 4.4
The Bosch WRD 13-2G water heater ranks third in the ranking of the best geysers in terms of price and quality ratio. This is the most powerful model(22.6 kW), while its cost is slightly lower than that of its TOP neighbors. The productivity of the device is 13 l/min - this is best indicator in the ranking. Due to the open combustion chamber, operation of the column is possible only with an additional air duct. A distinctive feature of this model is that it operates at a pressure of 0.35 atm, which allows you to use hot water even at low pressure.
The advantages of this Bosch geyser, according to customers, are ease of installation and operation, high-quality electric ignition and neat assembly. In addition, the water heater can also operate with liquefied gas, that is, from a cylinder. This feature will allow you to use it in country houses, where communication problems are common. Special overheating protection will work automatically when the temperature in the device becomes higher than permissible. The main disadvantages of this model are a noisy hydrogenerator, sensitivity to gas pressure and inconvenient location of inputs and outputs.
2 Mora Vega 10
High reliability (according to user reviews)
Country: Czech Republic
Average price: 17,650 rub.
Rating (2019): 4.5
In second place in the ranking of the best geysers in the mid-price category is the Mora Vega 10. This is a popular water heater designed to provide hot water to apartments and small houses. In terms of price, this is an average model, which also affects the characteristics. But this device boasts excellent reliability and the ability to operate in a wide pressure range - from 0.2 to 10 atm. Electric ignition quickly ignites the fuel, and the gas control function eliminates any gas leaks.
In positive reviews, buyers talk about ease of operation, heating efficiency and excellent reliability as the positive aspects of the Mora gas water heater. It is not necessary to invite a specialist to install the device - detailed instructions The kit will allow you to connect everything yourself. Overheating protection will prevent premature failure of the water heater, and temperature limitation will allow you to select optimal parameter for comfortable use of hot water. Disadvantages include electric ignition that does not always work and poor heating at low pressure.
Don't study independent connecting a gas water heater without relevant experience. Moreover, this is prohibited by law (any gas inspection = fine). Connection of gas appliances should only be carried out by a specialist with a mandatory license (SRO) from his organization.
1 Ariston Gi7S 11L FFI
Best functionality. Electronic control
Country: Italy (made in China)
Average price: RUB 15,746.
Rating (2019): 4.6
Geyser Ariston Gi7S 11L FFI is the leader in the rating of the best water heaters in terms of price and quality ratio. This productive model is perfect for use in any residential premises. Possibility to work on liquefied gas(from a balloon) significantly expands it functionality. The heater is controlled via electronic switches, making it easy to set the required parameters. The cost of the device is slightly higher than that of its competitors, but it has a closed combustion chamber, which allows it to be operated without the need to install an additional air duct. With a power of 22 kW, the heater has a capacity of 11 l/min, which is enough to satisfy any household needs.
In reviews, buyers indicate an attractive appearance, reliable operation and high-quality automatic ignition as the advantages of this model. The copper heat exchanger ensures maximum efficiency in transferring energy from burning fuel to water. The connecting diameter of the communication pipes is 1/2”, so the water heater can be used in most apartments. The work process is fully controlled by digital sensors, the readings of which are displayed on the display. Among the main disadvantages are a small range of operating pressures (from 0.4 to 4 atm) and rather noisy operation.
The best geysers for several water points (pressure water heater)
For those rooms where there are several hot water intake points, pressure water heaters are the best option. Flow-through models may not be able to cope, since a sufficiently large amount of hot water needs to be supplied at the same time, and in pressure devices its level is constant (pumping is carried out), which makes it possible to provide a certain reserve that is consumed by several receivers. The device is installed in a common riser, where distribution occurs.
3 Neva 4511
The most popular geyser
Country: Russia
Average price: RUB 7,312.
Rating (2019): 4.2
The popular domestic geyser Neva 4511 takes second place in the ranking of the best pressure water heaters. Unlike its competitor, this model can run on liquefied gas. A powerful hydrogenerator provides a productivity of 11 l/min, and a high-quality heating element with a power of 21 kW quickly raises the water temperature to the required level. Wall method fastening is convenient as it saves space in the room.
In numerous reviews of the Neva gas water heater, buyers highlight convenient controls, small dimensions and low cost as strengths. The display shows current information about the water temperature in the device. The body is painted with high-quality lead-free enamel, making the heater environmentally friendly. Operating pressure range from 0.3 to 6 atm - ideal for household networks. Weaknesses include the presence of noise during operation and the low reliability of some components.
2 Gorenje GWH 10 NNBW
The best ratio of price and functionality
Country: Slovenia
Average price: 6,946 rub.
Rating (2019): 4.4
The best geyser with the ability to connect several pressure points is Gorenje GWH 10 NNBW. It's simple pressure water heater, which is capable of supplying hot water to several consumers at once. The power of the device is 20 kW, which allows you to quickly heat a large volume to the required temperature in a short period of time. The gas is ignited using electric ignition.
Among the advantages of this model in reviews, buyers list a copper radiator, low level noise during operation and pleasant appearance. To ensure operational safety, a “gas control” function is provided, which eliminates possible gas leaks. To ensure that the coolant is supplied clean and its quality does not affect the service life of the column, special filters are installed at the inlet. To track indicators, there is a small display that displays the current temperature and a power indicator. Among the main disadvantages are the low quality of materials and difficulties in replacing filters.
1 Bradford White M-I-30S6FBN
The best gas water heater of storage type
Country: USA
Average price: 29,350 rub.
Rating (2019): 5.0
The Bradford White M-I-30S6FBN storage gas water heater provides your home or apartment with a constant supply of hot water. The device is capable of supplying a large volume of heated water to several points at once. The good thing about this model is that it allows you to successfully deal with changes in water pressure in the main. The device heats 125 liters of water per hour, raising the temperature by 50°C. The presence of a non-volatile control system allows you to automatically maintain the water temperature in a given range. And the insulated inner tank reduces heat loss. The geyser can operate at a minimum operating gas pressure of 88 mm water column. Important feature This model is to preserve the potable quality of water. This is achieved thanks to turbulent flows, which prevent scale deposits and increase the productivity of the device.
Domestic consumers highly appreciate the durability of the model with uninterrupted operation. The volume of heated water is enough for a family of 4-5 people.
The best premium class geysers: budget from 30,000 rubles.
The most expensive geysers provide the residents of the house with the necessary supply of hot water. This requires minimal human intervention in the operation of the heater.
3 Ariston SGA 200
The best combination of price and quality
Country: Italy (produced in Russia)
Average price: 37,610 rub.
Rating (2019): 4.8
The Italian geyser Ariston SGA 200 boasts the best combination of price and quality. The storage-type device is equipped with a tank with a capacity of 195 liters. With a floor mounting option, the heater has a height of 170 cm. The manufacturer has fully adapted the heater to the characteristics of Russian gas; the use of liquefied fuel is allowed. Stable operation of the gas column is maintained even at reduced pressure of the hydrocarbon feedstock. Special thermal insulation of the tank made of polyurethane foam can reduce heat loss by up to 20%. A smoke removal sensor, a thermocouple and a limit temperature sensor are responsible for safety during operation. The device can heat water in the absence of electrical energy.
Homeowners and plumbing professionals praise the model's compactness, performance, and affordability. Comfort during operation is provided by heating and switching indicators. One of the disadvantages is the attenuation of the igniter even after the device is fully heated.
2 Baxi SAG3 300
Largest water tank
Country: Italy
Average price: 73347 rub.
Rating (2019): 4.9
The best model with a built-in tank was the capacitive geyser Baxi SAG3 300. The device can heat water from 15 to 65 degrees in 0.97 hours. At the same time, consumers have a supply of hot water with a capacity of 300 liters at any time. Mechanical control is simple and reliable. The device can operate both on natural gas (consumption 2.45 cubic m/h) and liquefied fuel (consumption 1.83 kg/h). The geyser is not afraid low pressure gas, with its help the problem of interruptions in water supply is solved. Thanks to high productivity and the required reserve, hot water can be supplied simultaneously to several water intake points. The device uses such safety systems as a traction sensor, safety valve(8 bar) and thermal sensor.
Experts in their reviews highlight such advantages of the Baxi SAG3 300 gas water heater as performance, noiselessness, and lack of scale in the heat exchanger. The disadvantages include high temperature exhaust gases, lack of a pipe for draining water.
1 Bosch WTD 27 AME
Highest power
Country: Germany (manufactured in Portugal)
Average price: 73,000 rub.
Rating (2019): 5.0
The best power indicator among flow-through gas heaters is the Bosch WTD 27 AME model. The column is compact in size, stylish design and great productivity. In addition to use in big houses and apartments, the unit is also suitable for providing hot water to sports clubs, hotels, cafes, car washes, etc. Thanks to the electronic control system and backlit LCD monitor, it is convenient to set up the device and monitor its readings. The device is equipped with an overheating sensor, which allows you to use gas economically. The water tap is equipped electric drive. A gas water heater is suitable for providing hot water to several water intake points; this can be done with a modulating burner.
In the reviews, ordinary people and experts agree that the model is the best flow-type gas water heater. It can be configured once and long time do not approach the device. The only drawback that stands out is the high price.
The gas equipment market today offers a large number of models of water heating appliances from imported and domestic manufacturers. Below we will discuss how to choose a geyser. After all, to choose the right device, you need to understand the features different types speakers and their characteristics.
Types of water heating columns
A gas water heater for an apartment is often chosen based on the type of ignition. Modern devices are usually divided into two large classes:
- Semi-automatic(piezo ignition), ignition of the pilot burner in which occurs from sparking when pressing a button acting on the built-in piezoelectric element;
- Automatic, in which an electronic unit is responsible for supplying a spark to the ignition or main burner.
Spark in automatic geysers different models can be generated in two ways - by a spark gap when powered by a pair of “D” size batteries (the largest battery) and by a small electric generator driven by a hydraulic turbine (hydraulic ignition).
Each column has disadvantages and advantages. Let's consider what you need to consider so as not to spend a long time choosing which geyser to buy in the store:
- The ignition burner of semi-automatic water heaters must burn constantly, otherwise the main burner simply will not light up when the water tap is opened, which entails a significant overconsumption of gas - in a day a small wick “eats” up to 0.8 cubic meters. m of gas;
- batteries of automatic speakers have to be changed periodically (about once a year), which is not always convenient;
- water heaters with a hydrogenerator are expensive, and the hydrogenerator is sensitive to water quality - if this device becomes clogged, the column will simply stop functioning.
And before you buy an automatic gas water heater with a hydraulic turbine, make sure that the pressure in your water supply is normal, i.e. above 0.4 atm, otherwise it simply will not turn on at low pressure. It is also useful for this type of speakers in the apartment to have additional system filtration of tap water, i.e. . hydrogenerator operates at high water pressure and good water quality.
Nevertheless, the comfort of using automatic geysers determines the increased demand for them, even despite the high price. The “automatic machine” starts working immediately after the consumer opens hot water - there is no need to press or set anything on fire.
Semi-automatic speakers have also still not lost their popularity, primarily due to their low price, simplicity, lack of expensive electronic components and high level reliability. Therefore, consumers often choose these water heaters when answering the question of which gas water heater is best to buy.
Gas water heaters differ in the way they regulate gas flow. By this parameter they are divided into the following types:
- Columns with automatic adjustment, in which the set water temperature is maintained constant by changing the amount of gas supplied to the burner in a fully automatic mode.
- With smooth or step manual adjustment. The water temperature changes when its flow rate or gas pressure in the line changes, but the user has the ability to change the gas flow to the burner to maintain the temperature regime.
Manual temperature adjustment is made by turning the gas tap handle. If you twist it too much, the column may go out. Also, it is better not to operate such speakers in the mode of mixing heated and cold tap water, otherwise they will quickly fail.
Parameters for choosing a water heating gas water heater
To understand how to choose a gas water heater for an apartment, study not only the type of water heater, but also the parameters, the main one of which is power, usually expressed in kilowatts (kW). You can focus on the following statistics:
- to heat water only for a shower or sink, a low power column of up to 19 kW will be sufficient;
- if several water intake points must operate simultaneously, then you need to buy a water dispenser with a power of 22 kW or more.
Manufacturers usually indicate how much water the column can heat by 25 degrees in a minute. Here it should be taken into account that if the column heats a maximum of about 11 liters of water by the specified amount, then the productivity is only sufficient for one water collection point. A dispenser with a capacity of 14 liters can already work at two points, 16 liters - at three points.
You should not take a powerful speaker if the water pressure in the apartment is low - the device will still not produce the required power, and you will overpay. If the maximum flow rate in your house is, say, 10 liters, and you take a dispenser with a flow rate of 15-16 liters, then, depending on the manufacturer, the automatic or semi-automatic device will either heat the water ineffectively or will not turn on at all.
It is also important to correctly determine the overall dimensions of the instantaneous water heater, for which purpose measurements are taken of the installation site. The diameter of the chimney to which the water heater is planned to be connected is also measured. If the need arises, you can purchase a special adapter to connect the gas water heater to the chimney.
Speaker for a private home
To know how to choose a geyser for your home, you need to understand what requirements these devices impose on the presence and properties of the chimney in the building, as well as on the quality of ventilation.
Gas water heaters work not only in apartments, but also in private houses. True, before installing a water heater in a private home, you need to decide how and where the flue gases will be discharged. If the house already has an exhaust duct with sufficient draft, then any type of instantaneous gas water heater will be suitable for installation.
In the absence of an exhaust duct, for example, in a five-story apartment converted for the use of water heating devices or in a private house, it is possible to use only parapet or chimneyless water heaters. In this case, combustion products are removed by a fan, for which a hole is installed in the wall. The room itself should also be well ventilated.
Also for private houses great value will have a minimum water pressure value at which the column can turn on. As previously noted, the highest minimum pressure required for the operation of the column are automatic models with a hydrogenerator. For them, this value corresponds to 0.35-0.45 atm. Choose better water heaters, operating already at 0.1 atm.
The best models of geysers
Below are the characteristics and description best devices offered on the market today. This way you can roughly figure out which gas water heater to choose.
One of the best inexpensive economy class geysers with an open combustion chamber, automatic electric ignition from batteries, but with a minimal set of functions. Produced since 2009 in St. Petersburg by the Gazapparat plant. There is no outlet temperature control, and the maximum flow rate is low - only 11 liters. Therefore, it is impossible to open the tap, for example, in the kitchen while the shower is running without the risk of burning the bather. But you can buy a gas water heater for a low price, and it works with low water pressure of only 0.1 Bar.
This is a reliable and safe geyser, one of the best on the market. Equipped with a piezo ignition system with a constantly burning wick and automatic maintenance temperature set at the output, has the entire necessary set of safety sensors. Works even at low pressure in the water supply network (only 0.1 Bar). In addition, this device is actually the only one on the market that protects against the occurrence of reverse thrust, making it ideal for apartments with poor ventilation and poor smoke removal. Disadvantages - expensive spare parts and low flow rate - 10 l/min.
In terms of price/quality ratio, the water heater is one of the best. It is problematic to buy a geyser with similar characteristics at the same price, but the device is characterized by high reliability and ease of control with one handle to set the temperature. The column has high productivity (14 l/min, 28 kW), automatic electric ignition and hydraulic adjustment of the flame on the burner depending on the value of the inlet water pressure. That is, the temperature of the column does not change due to changes in water pressure in the network.
Probably everyone knows common Since ancient times, the expression: “my home is my fortress.” You can, of course, put a variety of meanings into it. But if you look from an everyday point of view, from the position of a caring and economical owner, then this can be perceived as a desire for the greatest possible autonomy, for independence from public utilities with their unpredictable quirks in the form of changes in the conditions for the provision of services, tariff increases, supply failures, preventive maintenance, repairs, accidents and the like.
It is no secret that not only the owners of private houses, but also the owners of apartments in high-rise buildings in lately Increasingly, people are installing their own independent home heating and hot water supply systems. About heating boilers - in a separate publication, and this article will be devoted to questions of how to choose a gas water heater so as not to have problems providing your household with hot water.
But even before the speech will do about the problems, in fact, of choosing these devices, you need to, at least briefly, familiarize yourself with their basic structure. This is necessary, first of all, in order to try to dispel a number of fairly common prejudices that were formed in the collective consciousness regarding speakers quite a long time ago are firmly entrenched there and are very difficult to “neutralize.”
The design of a geyser and its advantages
In order not to make mistakes when choosing such a heating device, it is necessary to at least approximately understand its structure. Even though the range of modern geysers is quite large, their work uses the same principles and internal structure, and functionality.
The diagram shows the approximate structure of a typical modern flow-through gas heater. Of course, specific models from different manufacturers may have their own characteristics, but only in matters of layout or ease of use.
1 – fume hood, closed with metal walls, a volume from which gas combustion products are removed in one way or another. It can be completely sealed or connected to the atmosphere (in conventional, chimney or chimneyless columns).
2 – copper heat exchanger. A pipe system with a “jacket” that receives the direct impact of the flame of gas burners. This is where the heating of running water takes place.
3 – ignition sensor. Provides a control signal to open the common gas solenoid valve only if the ignition wick is operating.
4 – ignition wick. There may be different principles of operation - this will be discussed below.
5 — gas burner, more precisely, several lines of gas burners, providing0 their uniform heating of water in the heat exchanger.
6 – water unit, which includes, among other things, a fitting for connecting a cold water main (pos. 9), a screw water flow regulator (pos. 9, not for all models), and a drain valve (pos. 10, also optional, not on all speakers).
Water valve - “frog”
The main element of a water node is always so-called "frog".
In essence, it is a working cylinder, the volume of which is divided into two parts using an elastic membrane.
Both halves of the “frog” are connected to each other by a fitting of a certain diameter. The point is that when water is opened through the column, due to the pressure difference in the two parts of this “frog”, the membrane bends upward and pushes the rod, which is connected to the spring-loaded gas valve, opening it. As soon as the water flow is stopped (the water tap is closed), the pressure under the membrane drops, the valve returns to its original position, and the gas burner, accordingly, immediately goes out.
11 - in this diagram - a unit with microswitches (optional).
12 – gas block with connection fitting gas hose(pos. 13). This is where the spring-loaded gas valve is located, connected by a rod (rod) to the water unit.
14 – in this column – the electronics unit that controls the operation of the water heater. In inexpensive simple speakers it may simply be absent. Pos. 8 – compartment for batteries (batteries) necessary to generate an ignition pulse on the igniter.
15 – connection fitting to the hot water distribution line.
16 – mechanical regulator that switches operating modes, controls the levels of water flow and gas supply. In modern speakers it can be completely replaced by an electronics unit, with control signals transmitted through push-button or touch control panels.
17 and 18 – cascade of column operation sensors. The specific “filling” may be different - this will be mentioned below in the article.
As already mentioned, any model may have its own distinctive features , But basic principle the buildings all remain the same.
The diagram for connecting the column to the water supply pipes, regardless of its model, is the same for everyone - it is shown in the figure.
So, when you open the water at the hot tap, water from the cold main begins to flow through the column. The pressure of the water flow opens the gas supply valve, which causes the burners to ignite (more on the ignition mechanism below). The energy of the combustion gas is converted into heating water - and water flows at the required temperature from the “hot” taps on the mixers.
This is one of the main advantages of a geyser - it works exclusively at the moment when hot water is required, the rest of the time being in “standby mode” or in the off state. The owners of the house (apartment) use hot water only when needed, and at the same time do not depend in any way on the operation of the boiler rooms.
The second main advantage is, of course, operating costs. So far, no other energy source can match the cost of natural gas.
The speaker, of course, also has disadvantages, and considerable ones.
- It will not be possible to install it on your own - coordination with the relevant organizations, drawing up and approval of projects is required (unless, of course, the house was previously equipped with such water heaters).
- The operation of a water heater, even in its most modern version, still requires all residents to comply with certain safety rules.
- A stock of heated water is not created, unlike an electric or gas boiler.
- The initial installation of the column may involve very large-scale work to ensure the removal of combustion products or to create forced ventilation.
It should be noted that the designers of geysers managed to solve most of the “old problems” of gas instantaneous water heaters. Nevertheless, a certain number of people still have some kind of bias towards them. Therefore, in the next section of the article we will try to take a closer look at modern speakers precisely in the light of persistent myths about their danger or inconvenience.
Video: general structure of a typical gas water heater
Modern geysers – should we be afraid?
An interesting feature of geysers is that, willingly or unwillingly, they can even change demand, and therefore prices, in the secondary housing market. Realtors won’t let you lie - very often one of the main issues during the initial consideration of proposals is connecting the house to a centralized hot water supply and, accordingly, the presence or absence of gas water heating systems.
It is characteristic that there is no unity of views on this issue. Of course, people who have been tormented since childhood by old Soviet speakers, with their whims, noise, unsightly appearance, with constant “pressure” from elders about strict rules of use and the danger of violating them, they don’t want to hear about purchasing an apartment with gas water heaters.
However, there is also the opposite category - people who are already familiar with the fickleness of public utilities, with inflated tariffs and payment by meters for hot water (moreover, in order to wait for the first drops of hot water, it is often necessary to pour at least 3 ÷ 5 minutes of cold water, since the circuits circulation in many multi-storey houses are simply cut off). And such experienced clients, on the contrary, will be more satisfied with housing with a speaker. However, many people prefer to combine both possibilities - this is the most reasonable approach.
What are the main “myths” about geysers that continue to live, scaring off potential buyers of such equipment?
1. The column is very difficult to operate; it requires independent ignition with matches and constant monitoring.
Let's figure it out.
Well, firstly, any technique requires control, regardless of complexity. No one blames the gas stove with its open flame for this, or the faucet in the bathroom, which also needs to be monitored so that it does not leak over time.
Secondly, lighting with matches can only be found on those very “rarities” of the Soviet installation. Perhaps they are still produced somewhere, however, all, without exception, modern models worthy of mention are fired up differently.
— The simplest, “imperfect” modern speakers are equipped with piezo ignition. Before use, it is necessary to light the igniter wick by pressing the corresponding button, while turning the control handle to the appropriate position. Even this scheme is considered “outdated”, is used less and less and is giving way to other principles of ignition.
— Electric ignition is popular. At the moment the water starts, a sensor is triggered, which gives a signal to the electric igniter. At the same time, a channel for limited gas supply to the torch opens and a spark is generated to ignite it. The energy for sparking comes either from installed batteries (usually 1.5 or 3 volts) or from the power supply.
- One more modern method is the "HidroPower" system. In the supply pipe cold water a hydraulic turbine is built into the column. At a certain liquid pressure (usually about 0.3 - 0. 5 bar) the turbine induces an electrical charge sufficient to produce a spark for ignition of the igniter torch, which then it will transfer the fire to a common gas burner.
All this takes a long time to read - but in fact, the process of automatically igniting the flame when water is turned on occurs within just a few seconds.
So, in modern water heaters, no special human intervention is required (except for first opening the gas tap): turn on the hot water and use it.
By the way, you can immediately give an answer to a possible problem - why do you need an ignition burner (torch) at all? Surely it’s impossible to immediately ignite the main one?
It is forbidden! Until the torch warms up the sensor, the gas start-up solenoid valve will not operate. The very small amount that is taken at the moment of starting on the wick does not pose any danger to people - it will easily escape into the ventilation. But if suddenly the column accidentally goes out, the sensor has cooled down, then the gas supply will be blocked - the solenoid valve will close the line completely.
2. It is a very common belief that the column is a very explosive device.
What could explode there? If we are talking about gas, then it is no more dangerous in this regard than a regular gas stove. Likewise, provided there is no leakage, ventilation is normal, explosive concentration there is nowhere to get gas.
If we talk about the likelihood of an explosion of an overheated volume of water, then a boiler in this regard is probably even more dangerous. In the column, with its flow principle of operation, there are much fewer such conditions for an explosion. Moreover, in any (even the oldest and most imperfect) there are always at least two lines of “defense”, about which at same mentioned: an electromagnetic valve, which will not allow the burner to ignite independently, and a “frog” water valve, which shuts off the gas in the absence of water flow.
3. The fear is somewhat similar to the second point: there may not be an explosion, but a gas leak will lead to poisoning and a sad outcome.
You can refute it by citing all the same arguments that were presented two paragraphs above. And we can only add once again: the degrees of protection of a conventional gas stove are much lower, and the likelihood of a gas leak from the stove or oven into the living space is much higher. Nevertheless, for some reason, they are more afraid of gas water heaters in this regard, although this is completely illogical.
4. Another very persistent, but completely incomprehensible prejudice is that a gas water heater will completely ruin the interior of the kitchen.
Probably, only someone who can’t get the image of an old, rust-covered ancient pump with metal pipes leading to it in his imagination can’t say this.
Blaming modern geysers for being unsightly is the same as making similar complaints about refrigerators, microwaves, hoods, ovens, etc. Gas water heaters They fit perfectly into the kitchen decor, take up very little space, and sometimes stand out against the general interior background just by the presence of a chimney. (and even then - not always).
What Another thing to consider when choosing a column
So, we come to a common opinion: there is no need to be afraid of geysers, they should become reliable and safe assistants in household. This means that we should take a closer look at the criteria that should be taken into account when choosing this device in a store.
Gas water heater power
Under this parameter lies the ability of the geyser to heat a certain amount water per unit time to the required temperature. In general, the entire variety of these devices can be divided into three classes:
Low power geysers. The rating does not exceed 19 kW, and such a water heater is capable of serving only one point of consumption at a time.
Medium power speakers include devices rated from 20 to 28 kW. Usually they are already enough to simultaneously draw heated water in two places.
The most powerful are geysers that produce 29 kW or more. Their performance is even enough to take a bath in one place with simultaneous, for example, washing dishes in the kitchen, or with simultaneous using hot water in three places is quite enough for any “everyday” situation, even in a large country mansion.
It may be objected that kilowatts, although they are indicated in the product passport and on the information plate on the case, still mean little to the average user. It’s difficult to argue with this, so we’ll try to explain this meaning more clearly.
The main purpose of the column is to raise the water temperature from the initial value ( TVx) to what is required for household use (TN). The difference between these two values (delta) will show what our water heater is capable of.
ΔТ = Тн - Твх
The “delta” itself is not interesting - you need to know how much water the column can heat for such a difference per unit of time. (usually measured in liters per minute).
How to determine the required power?
It can be taken as a statement that for the normal functioning of a kitchen sink, about 4 liters of heated water per minute are required. For taking a shower, 6 liters is usually enough. (These values have been tested in practice, and, by the way, they are what are used to guide the development of special economizer devices in the form of aerators or special fittings, which, even if desired, do not allow the use of larger volumes, thereby helping to save water).
Power calculation the desired water heater can be done using the formula:
М = ΔТ × Σv/14.3
M – required power,
ΔT– heating value (see above)
Σ v– total volume of simultaneous consumption;
14,3 – coefficient taking into account the heat capacity of water.
Let's assume that a column is selected that allows simultaneous use of a shower and sink in the kitchen. The total volume will be Σ v= 4 + 6 = 10 l/min.
Magnitude ΔT– depends, of course, on the inlet water temperature. If we assume that water comes from a water supply with a temperature of about 10 - 15 ° WITH, then a rise of 25 degrees should be quite acceptable - the output will be about 40 ° WITH, which is enough for both taking a shower and washing dishes.
In total we get:
M = 25 × 10 / 14.3 = 17.4 kW
It is clear that this value is the lower acceptable limit. It is recommended to add another 15 - 20% reserve to it, and then round up to whole numbers. We get 21 kW. The speaker you purchase must have this power. Of course, all models of water heaters have their own gradations and capacities, but you need to buy one so that the value is not lower.
Perhaps this may seem too complicated. In addition, the initial temperature value may be different, for example, in winter, the water may have about 5 degrees at the inlet. In order not to force readers to “suffer” with formulas, it is better to provide a table in which the power of the column will be linked to the inlet temperature and the overall performance of the device, provided that it supplies water to the mixer at 40 ° WITH:
| Temperature of tap water at the inlet to the column | The amount of water heated to +40 °C, depending on the power of the column (liters per minute) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| up to 3 kW | 6 kW | 8 kW | 12 kW | 15 kW | 18 kW | 21 kW | 24 kW | 27 kW | |
| 5 °C | 1,3 | 2,75 | 3,6 | 5,5 | 6,75 | 8,25 | 9,4 | 10,75 | 12 |
| 10 °C | 1,5 | 3,1 | 4,2 | 6,1 | 7,75 | 9,25 | 10,75 | 12,3 | 13.75 |
| 15 °C | 1,75 | 3,6 | 4,75 | 7,25 | 9,0 | 10,75 | 12,75 | 14,3 | 16.2 |
| 18 °C | 2,1 | 4,3 | 5,75 | 5,5 | 10,7 | 12,9 | 15,0 | 17,25 | 19.25 |
Usually both power and ΔT are the basic values of the water heater and must be indicated in the technical documentation.
And the most accurate calculation using the same formula will be possible with the proposed online calculator.
Using it is not difficult.
- First, the temperature that is planned to be obtained at the output of their column is indicated. At the discretion of the future owner - for some, 40 degrees is enough, but maybe someone wants it cooler or, conversely, hotter.
- The next step is to indicate the temperature of the water supplied to the column. Here you can proceed either from existing circumstances. For example, from some sources - wells, boreholes, storage tanks, water is supplied, regardless of the time of year, always at approximately the same temperature. And you can calculate for the most unfavorable conditions, when the water is so cold in winter that it is close to the freezing line.
- Next, you need to indicate (check the boxes) those hot water collection points that, according to the owners, can be used simultaneously without interfering with one another. Of course, if you supply water to all plumbing fixtures at once, then you probably won’t find such a powerful device.
But this is all decided at home, so to speak, by administrative methods. And it’s difficult to imagine a situation where one family member, for example, is washing dishes in the kitchen, a second one is standing in the shower at the same time, a third is taking a bath, etc. And the calculator, by the way, will help you fully imagine what can be used at the same time.
- All other values - the average statistical consumption at points of consumption and the heat capacity of water - have already been entered into the calculation program.
- All that remains is to press the “CALCULATE…” button - and the answer will be given, expressed in kilowatts of the required thermal power of the column. In addition to the calculated value, another one will be shown - taking into account the 15% power reserve, since “driving” the water heater to the limit of its operating capabilities is far from the best solution.
