Electric storage water heaters – is simple to use and reliable units, consisting of a tank and a heating element – petn. Tank capacity typically in the range 10-200 liters, the power of petn – 1,2-2,5 kW. Power Tan proportional to the volume of the tank. 10-15 liters in the tank is heated to 75? C for 30-40 minutes, a 200-liter – for 5-8 hours. The heating rate also depends on the temperature of incoming water. Water heater is equipped with a magnesium anode, counteracting rust in the inner tank, insulation between the inner tank and outer casing, necessary to save the achieved temperature, a thermostat, set the desired temperature, safety valve to remove excess water, formed during heating. Modifications – vertical and horizontal. Connection – via a simple socket ordinary apartment wiring.
Big win in the payment of the consumed electricity – when using storage water heaters during the grace of the night tariff. Electric instantaneous water heaters heat water passing through his body, which is heater – petn. Ten high power, so the heating of water takes place almost instantly. petn for single-phase power network – up to 12 kW for three phase – up to 27 kW. Can be considered a drawback by some, that such heaters, high efficiency, require special and separate wiring (preferably to the electrical panel, rather than, for example, electric stove in the kitchen) with a good ground. Another one of the requirements – high and stable pressure water system, because when there is insufficient cooling of petn can burn. Advantages – compact, switch at the beginning of the water pumping and instant supply of hot (50 C) water.
Leaving water temperature depends the degree of heating the water supplied. Gas storage water heaters differ from electric only energy use, and some of my features in the design. Common installation and configuration should be dealt with exclusively for Gas Service. Most likely have to drill the outer wall to install a coaxial flue. The advantages include the lack of electrical connections, economical, and the shortcomings – obligatory presence of a centralized gas supply to the place of operating the heater. Gas instantaneous water heaters (geysers) are fairly simple in design and operation – gas burner heats the copper exchanger, which passes through the water. They may be incorporated by hand – using a piezoelectric device ignition pilot burner, or automatically when the ignition occurs when opening draw-off tap. Are often provided two modes of operation of the gas column – an economical and forced. When choosing a gas "" definitely need to take into account its capacity. If hot water use simultaneously in several places (for example, in the bathroom and kitchen), we need a powerful unit (24 kW). At one point is enough water pumping unit average power (18-19 kW). Convenient alternative to ordinary gas burner – modulating burner automatically change because of the flame when the water flow. It retains the desired temperature of water output at any pressure surges and pressure in the water. Models of gas columns with burners, a few more expensive.