Human life in the 21st century has become as comfortable as possible. We have already begun to forget how to heat a house with wood and heat water in order to take a shower or bath. However, planned shutdowns of hot water in the summer periodically return us to the past. Fortunately, progress does not stand still, and today you can easily solve this problem by installing a instantaneous water heater. Having small dimensions and weight, it fits perfectly into the interior of the bathroom or kitchen.
What a flow heater consists of
In the body of the instantaneous water heater there is a heating element (heater or spiral), a power regulator, a temperature controller that turns off the heater when the heating temperature reaches the limit, and sensors that are responsible for protecting the heater from turning on without water in the system and the heating temperature.
Varieties of heaters
There are two main types of instantaneous water heaters - closed type (pressure head) and open type (pressureless).
The principal difference between pressure head is in that it can work on several points at once. That is, installing it in one room, you can use hot water in the bathroom, in the kitchen and wherever there are faucets. Before operating this type of device, you need to make sure that you can create a fairly high pressure in the water supply. At low pressure, the pressure heater cannot work.
Non-pressure set to only one point. For its operation, the pressure in the pipe does not matter. Often non-pressure water heaters are equipped with their own faucet or shower.
Also, water heaters differ in the type of use of the heating element. In its quality which can be used heating elements or heating spirals. Instantaneous water heaters with a heating element inside are large, with a spiral more compact.
Another difference between water heaters is the type of control. Mechanical, more reliable, temperature control is carried out manually using the toggle switch on the device body. Upon receipt of cold water, the membrane located in the body of the device is displaced, driving the switch lever. However, with a low pressure in the pipe, the lever will not move, and, therefore, the device will not turn on. Electronic, based on microprocessors and many sensors. More accurate, allow you to most accurately set the water temperature on the display. They are able to maintain any temperature regardless of the pressure of the water; they also use the optimal power level, thereby reducing energy consumption.
The principle of operation of the water heater
The principle of operation of the instantaneous water heater is that the water is heated and maintained at a given temperature, passing through the heating element. The device is connected directly to the pipe directly near the sink. When the tap is opened in the body of the instantaneous water heater, a pressure switch is activated. The heating element turns on and after a while (from three seconds to two minutes), the water is heated to a temperature set by the user and flows through the faucet. The temperature is set manually by the user.
Conclusion
Before buying a water heater, you should pay attention to some features of the operation of this device:
- to reduce heat loss, it is more expedient to mount a water heating device near the place of its use, that is, near a sink or shower;
- determining the location of the device, it must be borne in mind that splashing and droplets of water on it are extremely undesirable;
- if the pressure in the water supply system is not high enough, then a lower temperature should be set, otherwise the device may not turn on at all;
- if the water contains a large amount of impurities, for example, lime or rust, then you can not do without the installation of protective protective filters;
- installation of a water heater is possible only in heated rooms;
- after the end of use of the water heater, it is necessary to close the valve supplying water to the device, turn off the device and unplug the plug.
Despite all its features, instantaneous water heaters have several advantages:
- lower price in comparison with storage water heaters (boilers);
- compact size and weight. There is no need to set aside a special room for its installation; it can easily be hung directly above or below the sink (depending on the design);
- ease of use
- the ability to heat an unlimited amount of water in one application;
- lack of stagnation of a large amount of water in the system, leading to the multiplication of microorganisms.
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