One of the main benefits in a house or apartment is the presence of hot water. The lack of a central warm water supply system forces the owner of a house or apartment to install one or another water heating system. If there is gas in the dwelling, it is often the best choice to solve the problem of hot water supply is the gas water heater. In this case, it is she who will be the most economical to use, compared to electric water heaters.
Any specialized company will be able to offer you a huge selection of models of gas water heaters of various capacities and prices. A non-specialist can easily get lost among them without knowing all the subtleties and features of such equipment. So you can definitely decide which model will be a good purchase for your home, we have made a rating of gas columns in terms of reliability and quality. The rating was based, first of all, on reviews and ratings of users of this equipment, as well as their main technical characteristics.
Which gas column is better flow or accumulative?
First, find out what kind of gas column you can find on the market and tell you about their main advantages and disadvantages.
First of all, experts divide them into two groups:
- Flow;
- Cumulative.
Device and principle of operation of flow-through gas water heaters (gas columns)
The geyser has small dimensions, so that it is well suited for city apartments. A gas column is connected directly to the cold water system. Such units can work on both natural and liquefied gas. Passing through the heat exchanger, the water quickly heats up from the high temperature of the combusted gas and is already heated immediately supplied to the mixer. Geysers are equipped with advanced security systems to ensure reliable and safe operation.
Flow gas device:
1 . Thrust Detector;
2 . Overheating detector;
3 . Gas burner;
4 . Gas intake regulator;
5 . Hot water outlet;
6 . Exit for chimney;
7 . Collector for combustion products;
8 . Heat exchanger;
9 . Gas pipe;
10 . Water intake regulator;
11 . Outlet for cold water.
Device and principle of operation of the storage gas heater
The main difference in the device and the principle of operation of the storage gas heater is that the heated water in it does not go into the water supply, but is stored in a special capacity. Water heating does not occur simultaneously, but gradually. Accumulative capacity has good warming that promotes longer preservation of temperature of the prepared water. As the water consumes or cools, the water in the tank is automatically heated to the set temperature. Among the many models on the market, you can easily choose the one that provides you with the right amount of water. You can find both a column for the kitchen, the tank of which is about 50 liters, and a bath device with a tank of 100 liters and more.
Cumulative Gas Heater Device:
1 . Gas flow valve;
2 . Gas adjustment knob;
3 . Water temperature adjustment;
4 . Gas-burner;
5 . Ignition gas wick;
6 . Thermocouple;
7 . Main gas burner nozzle;
8 . Internal sheeting;
9 . Thermal insulation water tank;
10 . External protective cover;
11 . Shutter;
12 . Anode to prevent scale and corrosion;
13 . Drain cock;
14 . Cable from the detector thrust;
15 . The base of the chimney;
16 . Divider;
17 . Cold water inlet;
18 . Swirler of water flows for intensification of mixing;
19 . Emergency relief valve socket;
20 . Pipe coming out for hot water;
21 . Stabilizer thrust.
In which case it is advisable to install a flow through gas column
There is no place for installing surround equipment . In contrast to the cumulative column, which includes a tank with a volume of tens or even hundreds of liters, the flow-through column is small in size, which makes it possible to install it with minimal expenditure of free space in the room.
Restricted Budget . Flowing gas water heaters are much cheaper than cumulative. The difference in cost can go up to 3 - 6 times.This factor contributes to a greater distribution of flow through gas columns.
Reliability and durability . If we compare the two heaters, the flow through will be more reliable, since it uses fewer different systems and mechanisms.
In which case it is advisable to use a cumulative gas heater
There is a large number of water consumption points with a high probability of simultaneous use of . If it is assumed that several people will use the hot water at the same time, then in the case of using a flow column, there will be a decrease in water pressure and an increase in its temperature. Storage heaters of this disadvantage are deprived. In this case, the storage water heater will be your best choice.
Unstable gas pressure . Heating does not occur immediately, but gradually - depending on the capacity of the model and the volume of the tank, this takes from several minutes to several hours. Therefore, it is not necessary to consume a large amount of gas in a short time, which means there will not be a sudden load on the gas pipeline. In the case of a flow column, all gas pressure surges will affect the water temperature, in the case of a storage heater, this will only affect the rate of water heating in the tank.
The need to heat water to higher temperatures . The water in the storage water heater is able to heat up to a higher temperature. All models have the function of adjusting the maximum temperature. The user can set the optimal heating level to reduce gas consumption and reduce costs when paying utilities. High-quality thermal insulation ensures that even a few hours after heating, the water will keep the temperature high.
Low cold water pressure . If a low water pressure is observed in a cold water supply system, then the operation of a flowing gas column will be difficult or even impossible. In turn, the storage water heater is able to operate at a sufficiently low pressure.
Weak smoke exhaust system . Flow heaters are more powerful devices and require a larger diameter chimney (110-130 mm). Gas boilers are less powerful devices and do not form, at one time, such a quantity of exhaust gases, which allows them to be used with a chimney diameter of 90 mm.
Poor quality cold water . In regions with hard water, scale formation may occur. Over time, the salt layer on the inner walls of the spiral heating element of the flow gas column will increase, which will reduce the efficiency of the heater, as well as its heat transfer. In the case of accumulative gas heaters, this problem is less acute.
The best flow gas stoves
From the set of flow gas towers on the market we identified the following:
| 
| 
| 
| |
|---|---|---|---|---|
| Bosch WR 10 - 2P | Vaillant MAG OE 11-0 / 0XZ C + | Bosch W 10 KB | Zanussi GWH 10 Fonte | |
 
|  
|  
| 
| |
| Rated power, kW | 17.4 | 19.2 | 17.4 | 18.5 |
| Productivity, l / min | 10 | 11 | 10 | 10 |
| Ignition | Piezo | Piezo | electronic | electronic |
| Auto-ignition | 
| 
|
|
|
| Gas control |
|
|
|
|
| Maximum water temperature, 0 C | 60 | 55 | - | - |
| Type of combustion chamber | open | open | open | open |
| Power-on indication |
|
| - |
|
| Heating display |
|
| - |
|
| Minimum water pressure, bar | 0.1 | - | 0.15 | 0.15|
| Gas consumption (szhizh. nature), m³ / hour | 1.5 / 2.1 | - | 1.5 / 2.1 | - |
| Display |
|
|
|
|
| Diameter of the chimney, mm | 110 | 110 | 112.5 | 110 |
| Dimensions, mm | 580 * 310 * 220 | 634 * 310 * 230 | 400 * 850 * 370 | 550 * 330 * 189 |
Serious world-famous manufacturers have tried to create really high-quality equipment that will not let users down. And yet, each of these models has certain advantages and disadvantages, of which it will be useful for every potential owner to know, so that after a few days or even years of operation, he would not have to give up on the purchase.
Bosch WR 10 - 2P
+ Pros Bosch WR 10 - 2P
- Ability to heat water to a temperature of 60 degrees Celsius;
- It works extremely quietly, so it does not deliver troubles even in families where there are small children and elderly people who have trouble sleeping;
- Beautiful appearance - small size (242x640x340 millimeters) combined with a carefully crafted design, makes this model a good acquisition for many potential buyers ;
- The minimum amount of electronics reduces the risk of breakage and the cost of the remo nta;
- Ease of use - even a user who has never faced gas heaters before will easily understand the device.
- Cons Bosch WR 10 - 2P
- No automatic ignition;
- The inconvenient location of the igniter - a man of medium height, standing on the floor, it is difficult to see whether the gas is burning or not;
- Relatively high cost - if you want, you can find quality models ( including from the same manufacturer);
- Because of hard water, there are often problems leading to the replacement of the heat exchanger.
Totals . Reliable, easy to operate, gas boiler, it will not cause unnecessary problems, even after serving for many years. The column is characterized by quiet operation and the presence of ionization control of the flame, which makes it possible to turn off the gas when attenuated.
Vaillant MAG OE 11-0 / 0XZ C + 311187
+ Pros Vaillant MAG OE 11-0 / 0XZ C + 311187
- High performance - 11 liters per minute. This is enough even for the most demanding users who are used to having a large amount of hot water at their disposal;
- Piezo-ignition is reliable and easy to use - the user ignites the gas at the touch of a button;
- Rated power is 19. 2 kW allows you to quickly heat the water to the desired temperature, but at the same time, unlike most analogs, does not scald the user in the first seconds of the water supply;
- Power can be adjusted from 10 to 19. 2 kW, which enables the user not only to save ha But to get the right temperature water
- It is simple and intuitive control, making the column a good acquisition for users previously did not have to do with this type of equipment.
- Cons Vaillant MAG OE 11-0 / 0XZ C + 311187
- High cost - one and a half to two times more expensive than models from other manufacturers with comparable power and functionality;
- Many users noted a high noise level when working at maximum power;
- Poor working with a weak pressure of water.
- Noisy ignition.
Totals . If you want to buy a powerful, convenient and easy-to-use gas water heater, then this model will be a really successful acquisition. Users note that the column works well only with a sufficiently powerful water pressure. The manufacturer guarantees stable operation of the device at a gas pressure of 13 mbar.
Bosch W 10 KB
+ Pros Bosch W 10 KB
- The available cost is much lower than that of the models considered above;
- Electronic ignition (the gas ignites when opening a tap with hot water) not only guarantees maximum comfort and high level of security, but also saves the owner’s money, reducing fuel consumption;
- Having a water drain system makes it easy to cope with this difficult task if necessary to replace the geyser or if the tenants temporarily leave the house and will not use
- Small size and elegant design;
- If necessary, it can be reconfigured to work from liquefied gas, which is very important for small settlements where gas comes in during the winter interruptions;
- Thanks to the smoke control system, the column is turned off if the gas concentration exceeds the norm, ensuring safety for the inhabitants of the house.
- Cons Bosch W 10 KB
- Very loud and unexpected click when ignited (noted by almost all users);
- If the water pressure is weak, it may not turn on - especially true for the inhabitants of 4-5 floors.
- Cannot maintain a certain temperature.
Totals . We can say that Bosch W 10 KB will be a good acquisition for many inhabitants of private houses and cottages who do not want to spend extra money on functions that they will not use. Certain flaws appear only in some column owners. For example, some complain about certain flaws in the build quality.
Zanussi GWH 10 Fonte
+ Pros Zanussi GWH 10 Fonte
- The presence of the display allows you to get information about the water temperature;
- Weight in 8. 2 kilograms greatly facilitate the process of transportation and installation;
- Electronic ignition has proven itself to be reliable, convenient and most secure - the column is not connected to the 220 volt power supply. In addition, the gas is ignited only after the user opens the water - you have to wait a few seconds until the water becomes warm enough, but the fuel consumption is significantly reduced;
- Copper heat exchanger provides quick water heating;
- The ability to work with a water pressure of only 0.15 bar;
- Surprisingly, with all these advantages, the gas column has an extremely low cost - this model costs one and a half to two times cheaper than those discussed above.
- Cons Zanussi GWH 10 Fonte
- Poor build quality
- Low service life;
- High cost of batteries from which ignition is powered.
Totals . And yet, Zanussi GWH 10 Fonte may be the best choice for users who are very limited in the budget when buying equipment. Especially it can be recommended to the inhabitants of the upper floors - low weight and work with low water pressure in this case are particularly relevant.
Best gas heaters of storage type
American Water Heater PROLine G-61-50T40-3NV
+ Pros American Water Heater PROLine G-61-50T40-3NV
- The maximum water temperature is 70 degrees Celsius. This is quite enough even for the most picky users;
- The weight of 67.2 kilograms is significantly less than that of most similar models;
- The glass-ceramic inner coating of the tank reliably protects the column from corrosion and other unpleasant consequences;
- Protection against overheating significantly increases the service life of the equipment;
- The maximum heating temperature is easily adjusted to the tastes of the user.
- Cons American Water Heater PROLine G-61-50T40-3NV
- Quite high cost - analogues with similar volume and power can be purchased cheaper.
- Threads at the inlet and outlet of the water are sunk into the body, therefore, for connection, 3/4 span feet will be needed.
- All threaded connections are screwed very tight.
Totals . If you need reliable equipment that will last for many years (warranty period is 6 years), and you are ready to pay for quality, then American Water Heater PROLine G-61-50T40-3NV will not disappoint you.
Baxi SAG2 300 T
+ Pros Baxi SAG2 300 T
- A 300-liter tank is enough even for a very large family;
- The maximum heating temperature is unusually large - 97 degrees Celsius.However, you can easily reduce power by providing the right temperature;
- A power of 17.4 kW allows you to heat 300 liters of water to 60 degrees Celsius in just an hour;
- Piezo-ignition allows you not to connect the column to the mains voltage 220 V.
- The recirculation system provides hot water even in cases when the column is far from the mixer.
- Cons Baxi SAG2 300 T
- Some users report that the maximum water heating temperature does not exceed 60-70 degrees, however, this is a restriction of the manufacturer and can be adjusted.
- Non-standard size of smoke exhaust pipes - 140 mm.
Totals . The model can be a good choice for users who need a large amount of stored hot water. Users note that the choice of such devices is quite limited.
The selection of goods is made on the basis of reviews, opinions and ratings of users posted on various resources on the Internet. All information is taken from public sources. We do not cooperate with manufacturers and trademarks and do not call for the purchase of certain products. The article is informative.
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