The gas instantaneous water heater makes the owner independent of the centralized supply of hot water. Besides, he allows to save on utility payments significantly.
Device and principle of work flowing gases
The principle of work of all types of gas water heaters is uniform: water passes through special capacity in the water heater, capacity is supplied with heating coil which heats up at the expense of blowpipe. Instant heating of water happens thanks to the fact that the capacity through which there passes water has small volume and very intensively gets warm. Flowing such water heaters are called because water heats up during the movement via the water heater, but it is not warmed up in holding tank.
Make sure that for production of heating coil of the considered column quality copper is used.
Modern flowing gas heaters - safe devices, they are provided with automatic equipment which will not allow gas leak. All instantaneous water heaters allow to regulate easily the water temperature and its pressure even if you will sharply change pressure - water temperature will remain invariable, that is to these devices differences are not terrible. Distinguish two main types of instantaneous water heaters - pressure head and non-pressure. Water is in pressure head under pressure, they have stronger the body and heating flask, such heaters usually use in country houses and on production. In non-pressure the water pressure is only on entrance, in the heater there is no pressure. Such devices it is simpler on design and thicket are used in apartments.
The choice of the water heater on power
The main thing when choosing the water heater is to decide on its power. Gas heaters divide into three classes - low power, average and high. The he is capable to heat the water heater high power, the bigger amount of water in unit of time. That is to choose the device, it is necessary to know what amount of water you on average spend. For this purpose include water with that pressure which you usually use, and look how many water will be gathered in minute. Now you need to increase the received water flow by the difference between the initial temperature of water and temperature which has to be at the exit from the water heater and also on special coefficient 0.073. The received value will also be the required water heater power. Generally it is possible to tell that for kitchen the water heater of low power suffices usually, and the bathroom requires already the device of average power.
Types of ignition of the water heater
When choosing pay attention to type of ignition of column. The simplest - pyezorozzhig, it joins the special button, the column is lit from wick. Electric ignition joins automatically as soon as you open the crane, for its use batteries are necessary. Ignition like HydroPower the most convenient as does not demand any additional batteries - the water getting to the water heater twists the special turbine which kindles column.
If you are going to feed column liquefied, but not the main gas, make sure that it is calculated on such type of connection.
When choosing column give preference to the famous producers, such as Junkers, vaylant, Electrolux. And also read reviews at specialized forums of those models which to you have attracted.