Flow Gas Water Heater

Even temporary deprivation of the benefits of civilization looks like a real test, which is only the sudden or planned seasonal shutdown of hot water. This problem is completely irrelevant if a flat gas water heater or, as it is also called, a gas column is installed in the apartment. Today these devices are absolutely safe and do not spoil the interior of the premises. The principle of operation of a flow-through gas heater consists in instantaneous heating of water coming from a water pipe. When it enters the heat exchanger cold, the water receives the heat generated by the combustion of the gas.

Method for ignition of gas flow-through water heaters

Gas flow-through water heaters can be classified according to the ignition system. Obsolete models with manual ignition system, familiar to many residents of standard apartments, are no longer being released to the market. The modern range is represented by columns with piezo-spark, electric ignition and a rare way of ignition with a head.

1. In the piezo-spark model, after the heater is installed, the button is pressed, causing the piezoelectric element to give a spark. The spark ignites the igniter, which always burns. Then, when the crane is opened, the column switches itself on. There is such a heater on batteries.
2. Household gas flow-through water heaters with electric ignition are switched on from the spark of the battery. They are more economical, since with the shutdown of the tap the whole device is turned off, the igniter plug does not stay on, so it does not consume extra gas.
3. The method of ignition by head is carried out by a turbine, which is driven by a flow of water. This kind of columns is rare.

Power of gas flowing water heaters

Before choosing a gas flow-through water heater, it is important to evaluate such a characteristic as net power. This indicator indicates the performance of the gas column. For example:

• a device of low power from 17 to 19 kW, heating water by 25 ° C, will cope on average with 11 liters;
• At an average power of 22 to 24 kW, it will be possible to heat up to 25 ° C for about 14 liters;
• at a high power of 28-30 kW it will be possible to heat up to the desired temperature of 16-17 liters.

Thus, choosing a flow-through gas water heater for an apartment, you need to focus on the needs. For example, if there is often a situation that hot water is needed in the kitchen and in the bathroom, you should pay attention to more powerful speakers. Also it is necessary to say that there are heaters with both constant and variable power. If the first need to adjust the temperature of heating, depending on the head, then the second cope with this task yourself.

Installing a gas instantaneous water heater

The installation of a gas water heater in accordance with safety requirements must be carried out only by licensed specialists. Regardless of whether the old column is to be changed or new, independent actions are to be punished with a fine. The room for installing a flow-through gas heater must be at least 7.5 meters square and have at least 2 meters in height. A water pipeline with a pressure of not less than 0.1 atm and a regulated gas pipe are required, if it is not a question of installing a gas flowing water heater from a cylinder at the dacha. The use of cylinders in urban apartments is prohibited. Also, the room should have good ventilation and a chimney. However, today there are gas flowing water heaters without a chimney, which have enough natural ventilation, but they have low power and not every family can provide enough hot water.