Water heaters gas flow - how to choose the quality?

models Gas water heaters are appliances that let you forget about the problems associated with central water supply. Gas devices have proven themselves in both country houses and urban apartments. It is important only to choose the right device with the optimal ratio of manufacturing quality, safety and cost. The topic of today's article: water heaters gas flow - how to choose the quality?

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What is a gas-fired water heater?

Gas water heaters are devices for heating water using thermal energy, which is released when burning liquefied or natural gas.

Important! Since toxic substances are released when burning gas, it is necessary to take care of the arrangement of the chimney for their removal.

There is a metal shell on the outside of the device, inside which there is a burner for burning gas. It is she who is responsible for heating the water passing through the heat exchanger.

There are 2 types of gas-fired water-heating devices:

• Flowing.
• Cumulative.

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General principle of operation

The device of a gas water heater is not particularly complicated. Its main details:

• Main burner.
• Heat exchanger.
• Ignition burner.

Gas burner is a metal box with a gas and water pipes. The burning gas heats the water that passes through the coil of the heat exchanger.

Important! Modern models are equipped with an electronic ignition device.

For safe operation, modern models of gas columns have such additional functions:

• Heat exchanger protection against overheating.
• Water flow sensor. In the absence of water, a special valve blocks the column. If this device is not present, the internal equipment can overheat and fail.
• Flame control in the burner and possible gas leakage. If the flame is accidentally extinguished, the controller immediately turns off the gas supply and does not allow entry into the room.
• Traction sensor.
• Flame intensity control - to minimize the amount of combustion products.
• Control unit for monitoring parameters such as temperature, power and pressure.

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Advantages of gas flow-through water heaters:

• Cost-effective.
• Easy to install and dismantle.
• Minimum water hardness requirements.
• Fast water heating.
• Safe construction.

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Disadvantages:

• Higher requirements for room ventilation.
• Need to obtain permits.

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Water heaters gas flow: how to choose the quality?

Before purchasing a gas-fired water heater, it is necessary to study its parameters. The main technical characteristics are:

• Power.
• Regulation( manual or automated).
• Security.
• Type of combustion chamber.

Power

When examining a technical passport, you can face two types of power: useful and consumable. It is desirable to focus on the useful power( productivity).This is the amount of hot water produced by the unit within a minute. For a small family, a small low-power column is enough.

Control principle

The burner flame regulation can be manual or automatic. Manual adjustment is carried out by means of the handle located on the front panel of the water heater. With automatic control, the device independently determines the flame size of the burner, taking into account the flow of water passing through the heater.

Ignition method

When selecting, pay attention to the ignition method:

• Convenient ignition using a piezoelectric element.
• Electric ignition on batteries makes the device independent of the power supply.
• The hydrogenerator operates on the water pressure in the water pipe and does not require batteries.

Combustion chamber:

• If an open chamber is used, the flue gas is vented to the chimney.
• For devices with a closed-type chamber, gases are collected in a metallic coaxial structure.

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Best gas water heaters: an overview of

models. Gas flow water heaters are not so difficult to choose, and this is an excellent solution for a conventional city apartment or a small private house. But to install the device you need a gas network.

Important! The disadvantage is also the certain complexity of the installation. In addition, due to the release of toxic combustion products, care should be taken to ensure good ventilation of the room.

ZANUSSI GWH 10 Fonte

This is one of the most functional gas water heaters:

• Its power is 18.5 kW, the output is 10 liters per minute.
• The device is equipped with an electric ignition on batteries. This makes the device nonvolatile.
• The water heater is compact in size and beautiful in design. It can easily be entered into the interior of the kitchen or bathroom.
• Heat exchanger made of copper, resistant to corrosion.
• The water heats up in about 15 seconds.

Important! All characteristics allow to consider this model as the best in the market of gas water-heating devices.

Ariston Fast EVO 11B:

• The main advantage of this device is its high power and performance( 19 kW and 11 l / min, respectively).
• The electric ignition from the batteries makes it possible to use the device in the absence of electrical communications.
• There is an on indicator.

Important! To positive moments, according to consumers, are: ease of installation, safety( protection systems against overheating, gas control).The disadvantages include a small rate of water heating. A small value of the threshold of the inlet pressure( only 0.1 atm) causes a wide range of applications for the water heater.

Bosch WR 10-2R:

• The device is characterized by a larger( 17.4 kW) power, which allows it to heat up to 60 degrees. Productivity 10 l / min. All these characteristics make it quite comfortable to take a shower.
• The water inlet pressure range is 0.1-12 atm, which allows the unit to be mounted on all types of water pipes.

Important! Consumers also note the ease of use and reliability of the device. There are also disadvantages: a fairly frequent factory rejection and a body that is not stable to corrosion.

Vector

Budget quality model:

• There is an automatic ignition on batteries.
• The device is equipped with an automatic safety system that completely blocks the operation of the device in the absence of water, the flame is extinguished in the burner, and the chimney draft is poor.
• There is a digital display that displays the water temperature.

Important! The drawback of the device is the thin walls of the heat exchanger, which causes the water heater to leak over time.

Ruler Vaillant

Devices with a multilevel security system. There are models that can work at low soda pressure. The type of ignition in different models is different.

A gas water heater is a useful and useful thing if there is no hot water supply in the housing. Now you know how to choose flow-through gas water heaters in terms of quality and important characteristics. Using the device, you can heat water for a few seconds. When choosing a device, do not forget about such factor as safety.