How to choose a gas column: what to choose for an apartment, types and types, reviews and overview

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Gas column
  • Types
    • Classification by type of ignition
    • Types of columns depending on capacity
  • Types of ignition
  • Types of heat exchanger
  • Capacity
  • Water pressure
  • Power modulation
  • Presence of safety sensors
  • Which options are ideal for an apartment?
  • Overview of the most popular models of
  • Tips for choosing
  • Reviews

The heaters that use natural gas for work have many advantages. This is a small size, and the speed of heating water, and durability, and economic benefits. Modern speakers have high performance and safe operation, but they have a lot of technical characteristics, so choosing the right option is sometimes difficult.

Gas column

Types of

All heaters are cumulative or flowing. The first option is less common, it costs more and is used only in case of severe interruptions with water supply.

Storage gas column Gas storage column
Flowing gas column Gas flow column

Most gas-fired heaters are now flow models.

Classification by type of ignition

  • Automatic. It lights up when the water is turned on.
  • Semi-automatic. It constantly burns the ignitor.
Automatic ignition of the gas column Automatic ignition of the gas column

Column types depending on the power

  • High-power. In such models, the power will be above 25 kW.
  • Medium-power. Their power range is represented by 20-24 kW.
  • Low-power. Power parameters in such devices do not exceed 19-20 kW.
High-power gas column High-power gas column

Also, the columns are classified by the combustion method. They are divided into apparatus with an open and closed chamber. In the first case, the air is taken from the room to support the combustion. The second variant is represented by turbocharged heaters in which there is a supercharger, and the combustion chamber in them is closed.

Types of ignition

The main burner in modern columns can be ignited from:

  • An electrical pulse that is generated by the piezoelectric element after pressing the button. This kind of ignition is quite expensive, because the wick burns constantly inside the heater. The gas consumption in such a device is increased by 25%.
  • Under the influence of a pulse from the battery. The spark in such a column is formed when the device is turned on, and as soon as the device is turned off, the burner also goes out.
  • Due to the impulse caused by the operation of the hydrogenerator. This way of ignition occurs in models from Bosch. It requires the inclusion of an electric generator whose operation is activated by the flow of water.
  • Electrical network. This method of ignition is very rarely used and depends on the presence of an electrical outlet near the column.
Electric ignition of the gas column Electric ignition of the gas column

There is also a manual type of ignition using a match or a cigarette lighter, but in most currently sold heater models it is not used because it is considered obsolete.

Types of heat exchanger

In most of the columns that are currently on sale, the heat exchanger is made of copper. The quality of such a heat exchanger is affected by the percentage of impurity in copper( substandard metal will be gray in color) and the soldering characteristics( dark dots indicate a manual soldering, which is of lower quality).It is best to choose a model with an ultrasonic soldering of a copper heat exchanger.

Model

Features and average price

NEVA Lux 5514

Power of the device is 28 kW, and productivity - 13 l / minute.

Activated by electronic ignition.

Dimensions of the column - 650х390х260.

The average price is 12000 rubles

Bosch WR 10-2P

The power of the column is 17.4 kW.

The equipment works with a piezo spark.

The product is intended for a single point of draw-off( capacity 10 l / min).

For power regulation in the column there is a special handle.

The device can use liquefied gas for operation.

The dimensions of the column - 580h300h220.

The average price is 9000 rubles

Ariston Fast Evo 11B

The device heats 11 liters of water in 1 minute, and its power is 19 kW.

The ignition in this model is made from a battery.

The dimensions of the column are 580х310х210.

The average price is 12000 rubles

Electrolux GWH 265 ERN Nano Plus

The column is lit from the battery.

The power of the model is 20 kW.

Inside the unit there is a copper heat exchanger, resistant to oxidation.

The product has a good design and a display on the front side.

The dimensions of the column are 550х328х180.

The average price is 8000 rubles

Electrolux GWH 285 ERN NanoPro

The model heats 11 liters of water per minute, and its capacity is 19.2 kW.

The burner in this unit is made of stainless steel, and the heat exchanger is made of copper.

The device works with electric ignition.

The Intelligent Control system is provided to monitor the operation of the column.

The equipment is characterized by silent operation.

The dimensions of the column - 578h310h220.

Average price - 13000 rubles

Beretta Idrabagno Aqua 11

This unit has an open combustion chamber.

The power of the model is 21.8 kW.

Switching on is done with the button( piezo ignition).

In a minute such a column will heat 10.8 liters of water.

The device has a gas pressure stabilizer and the ability to adjust the power.

Dimensions of the column - 617h314h245.

Average price - 14000 rubles

Mora VEGA 10

The power of this model is 17.3 kW.

The device has piezopodig and power regulation capability.

The efficiency of this product is 92%.

The dimensions of the column are 592х320х245.

The average price is 20000 rubles

Vaillant MAG OE 11-0 / 0 XZ C +

The device with piezoprigation and power 19 kW.

The case of the column is made of steel and covered with special white enamel.

The heat exchanger is made of copper, and chromium-nickel steel is used to make the burner.

The product is designed to regulate the gas pressure.

The dimensions of the column are 634х310х230.

Average price - 13000 rubles

Gorenje GWN 10NNBW

The power of the column is 20 kW.

The ignition in this model is from a battery.

The device is designed for 1 crane and heats 10 liters of water per minute.

The device has a 3-stage protection.

The dimensions of the column are 590х327х180.

Average price - 9000 rubles

Oasis 20 ZG

The device operates with a power of 20 kW and heats 10 liters of water in 1 minute.

The ignition of such a column comes from the batteries.

The front side of the equipment is decorated with a design pattern.

All levels of safety are present in the model.

The device is quite quiet.

Dimensions of the column - 590х340х140.

Average price - 7000 rubles

Ladogaz VPG 14F

Thanks to the power of 24 kW, this column heats up 14 liters of water in 1 minute.

For ignition, this model uses a battery, so the unit switches on automatically at the same time that the tap is opened.

The heater has 8 levels of protection.

The burner in this column is steel and differs by the presence of reflex gratings.

Dimensions of the column - 720h320h210.

Average price - 13000 rubles

The most popular models of gas columns are:

Copper heat exchanger gas column Copper gas exchanger

Performance

This parameter is measured in liters per minute in most manufacturers and is directly related to the capacity of the unit. It is indicated either on the back of the column, or in the documentation for it. By this indicator you can determine how much water can heat the selected model within one minute.

Graph of gas column performance

To relate such data to your needs, consider that, on average, about 7 liters of water pass through one mixer per minute. So if you need to simultaneously get hot water from two taps, pick up equipment with a capacity of 13 l / min and above.

Water pressure

The technical characteristics of the column indicate the minimum value of the water pressure at which the machine will operate. This parameter is especially important for residents of old buildings, where the water pressure is low.

The problem of water supply in Russian homes is also the periodic occurrence of hydraulic shocks. Apparatus capable of withstanding 12 bar, well tolerate such short-term increases in pressure.

Power Modulation

Due to water pressure fluctuations, the operation of the column may be affected, however, no differences will interfere with the operation of the model in which there is a power modulation option. In such a column, when the head of the water drops, the equipment will continue to operate, maintaining a stable temperature of water coming from the tap.

In this case, modulation is possible only in a certain range - its upper limit does not exceed the maximum power of the column, while the lower one is affected by the sensitivity of the internal elements of the apparatus. If such a range is 40-100% of the power of the column, such a modulation will be comfortable.

The valve of modulation of capacity in a gas column Power modulation valve in gas column

Presence of safety sensors

The safety of using the column depends on such sensors:

  • Combustion. It will shut off the gas supply when the flame is attenuated.
  • Ionization. Such a sensor will also block the supply of gas in a situation where the fire is extinguished.
  • Flow. Ensures that the column is turned on after opening the tap and turns off when the tap is closed.
  • Overheating. Thanks to such a sensor, water can not be scalded, and scum will not be collected on the heat exchanger itself.
  • Water temperatures. This sensor detects cold water or hot water, which results in the adjustment of the flame force.
  • Thrust .The column will stop working in the absence of traction.
  • Security reset .It is triggered by excessively high water pressure.
  • Low head. Does not allow the column to be turned on when there is insufficient water pressure.

Read more about this in the article about sensors in a gas column.

Traction sensor for gas column

Throttle Aspirator Which options are ideal for an apartment?

Picking up a column for a city apartment, the main thing is not to rush, but to consider all the important nuances that are important for the right choice:

  • Determine the power of the heater. Conditionally, a column with a power of less than 20 kW is suitable only for water supply to a single point of consumption. It is suitable if you are looking for a model only for the kitchen or just for the bathroom. If you need a device for supplying water to two points, look after models with a power of at least 20-24 kW.
  • Select the type of ignition of the device, as well as the option of removing combustion products. Here it is necessary to consider whether there is a chimney in your house, since many apparatuses produce combustion products through it. However, there are also models, the release of combustion products in which occurs directly to the street.
  • Make sure the column is safe to use.
The gas column in the apartment

Review of the most popular models of

Gas column Gorenje GWN 10NNBW Gas column Gorenje GWN 10NNBW
Gas column Electrolux GWH 285 ERN NanoPro Gas column Electrolux GWH 285 ERN NanoPro
Gas column Oasis 20 Gas column Oasis 20
Gas column Bosch WR 10-2P Gas column Bosch WR 10-2P

For the reliability and quality of gas columns, see another article.

Tips for choosing

When choosing a column, answer the following questions in turn:

  1. Which device are you interested in?
  2. What power do you need?
  3. What kind of ignition should be in the device?
  4. How will the combustion products of gas be diverted?
  5. What additional security features and parameters are important to you?
  6. Is the device suitable for interior design?
Gas column for home

Reviews

Users are quite satisfied with the columns from Bosch and Vaillant, but note that the repair of such devices is very expensive. The greatest reliability, but at the same time the highest price is noted at the columns of Mora. Among domestic producers, they are positive about the Neva columns. Negative feedback is often heard about the work of Chinese speakers. At the same time, many are dissatisfied with devices with a steel heat exchanger.

Gas column for home

The next video of the channel on Youtube "Heat Engineering SPB" will tell you more about some important characteristics that should be taken into consideration when choosing a gas column.

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