How to choose a water heater: a review of the best models and manufacturers

Before choosing a heater it is necessary to understand how it works. Available are many different and the volume and type of construction heaters. People not versed in the intricacies of the water heating equipment, usually lost among such a variety and either listens to the advice of the seller, or to friends and acquaintances who have actual experience in the use of a particular boiler.

The Second option is definitely better, however, not be superfluous to learn how to understand the water heaters. In addition, what brand is more reliable or more powerful, there are nuances related to the specific conditions of the intended use of the boiler - daily analysis of water, depending on the number of users and intensity of use of hot water, the tension in the house - 220 or 380 volts, seasonality of use, size bolinaga premises and so on.

Unit heater

Any water heater (boiler) consists of a container (tank) of a particular volume and a particular element, which heats in the water. The temperature to which the device should heat the water, is set by the user. Upon reaching the temperature set, the device supports it at a predetermined level. While sparingly used electricity, and the water heater is always hot water, which you can wash the dishes, take a bath or shower and so on.

The water heater is Particularly relevant in cases where hot water supply is missing or there are interruptions. Then the question arises on the acquisition of the water heater.

Classification water heaters

The water Heaters with the cumulative principle, are:

• Electrical,
• Gas,
• Composite.

Electric boilers are dependent on the availability of electricity in the network. Without it they cannot function. Therefore, in regions where there are frequent interruptions in power supply, current gas water heater. Besides, gas is relatively cheap compared to electricity. If the electricity shut down frequently and for a long time, then the solution may be to purchase an electric water heater and generator.

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The boilers of all types have both advantages and disadvantages that you should know before you pick up a suitable unit.

Heater Power

The Main advantage of gas water heaters over electric, is the time at which it heats water. Gas models have a capacity from 4 to 6 kW, while electric boilers have usually a 1.5-3 kW.

So, for example, if the device has a tank capacity of 150 liters, of a gas boiler burner produces 7 kW. Under such conditions, the electric heater has a power up to 3 kW. Therefore, a gas heater will heat this volume of water about an hour or a little longer, in that time, electric will cope with the same problem for 3-4 hours.

Installation and features installation

Before purchasing the water heater it is important to determine the place of its installation. When installing a gas appliance there are some difficulties associated with the need for additional fume collection system. Because gas boilers are available with closed and open combustion chamber, the nuances of the installation connected to it.

So, if the water heater has a closed chamber, the installation to perform a relatively not difficult, although the boiler is not cheap. Can not be said about installing the device with an open chamber, where the installation and the device itself will cost much more.

Judging by the reviews, water heaters, powered by electricity, are very popular because of their connection does not require a separate power line, and they are connected to a conventional power supply.

The Volume of the inner tank

When selecting the heater important criterion is its volume. Or in other words, its capacity. Hot water should be enough with the excess, only in this case, its operation is comfortable and the user won't experience any shortage of hot water.

Of Course, a boiler with a large tank and is more expensive, and to place it in an apartment sometimes is not easy. This is why we should approach the question of choosing the water heater with all seriousness to one side – not to pay extra money, and on the other – a fully solved problem with the hot water supply of your home.

How to calculate the parameters of the heater

First, you need to take into account all the people that will use hot water. Since everyone has different needs, and should take into account as many moments to count all possible waste hot water: washing dishes, washing, bathing, showering, washing, washing hands, etc. You must also take into account the number of toilets, sinks, tubs and showers.

If you only need hot water for washing dishes - the boiler tank with about 10 liters. In practice, however, usually acquire a water heaters not only to wash dishes, and for a much larger number of householdneeds.

For Example, a standard bath has a capacity of about 190 liters. Of course, the tub will never fill to the edge, some amount of water will vyneseno the human body, is added to cold water. The result is that for a bath, the boiler will need to heat the water above 50 degrees and you need about 80 litres. If the temperature is set higher, and water consumption is also reduced.

In the same way, calculate the expected number of consumed hot water for all family members and different needs. In the end it should be a figure reflecting the amount of water that should be in the boiler to provide all the needs of living people.

Expert opinion

It is believed that hand washing is sufficient to have a model with a tank capacity of about 15 liters. If you want a shower, it is quite suitable water heater 30 liters. Such models are quite economical and are easily installed near the shower or under the sink. For a family of 2-3 people is the optimal holiday option.

There are water heaters with high volumes. They would suit a family with lots of people. So the boilers, having a capacity up to 1 ton and working from the usual outlets, suitable for hot water of an entire private home.

So, for a family up to 3 people, enough volume to 150 litres. If the family consists of 4 people, the tank will need about 200 liters.

Anyone who buys the water heater, first wants, buying it, not to experience a shortage of hot water. However, for example, water heater of 50 litres, will not be able to provide hot water, decided to lie down in the tub one after another two people. Because the boiler needs time to heat the water, and if it is drained from the tank, the time will need as much again as in the beginning. In this case you need to buy the device with a volume of 150-160 liters.

Do Not buy too large a water heater unless the water demand is not non-stop. Otherwise, the excess hot water will not cover the cost of buying the device.

The Inner coating of the tank

The Inner surface of any water heater should be covered with a special material that prevents corrosion. As such a coating is usually steklotara, enamel or stainless steel. Well established itself and titanium coating.

From anti-rust material and quality of coating the inner surface of the tank depends on the lifetime of the boiler. And the cost of the device depends on the type of coating. Anti-corrosion materials have different costs, which also depends on the degree of their resistance to corrosion.

Coatings

The Best accumulative water heaters are considered as model having a coating of the inner walls in the form of enamel and steklovata. The cost of these materials is quite acceptable, and they are well withstand corrosion. But they have significant drawbacks. They negatively react to temperature changes, up to the appearance of small cracks. Therefore, models with such coatings it is better to buy if the water is supposed to warm above 60 degrees. But there is a downside - low temperature heating water, it will inevitably begin to develop bacteria.

In order to prevent the occurrence in the tank of harmful bacteria it is recommended to periodically increase the hot water temperature. It is also worth to note that the warranty on the water heaters with this type of coverage is usually not more than one year.

There are among the boilers and those who have the warranty period to 10 years. To achieve this on can devices, tanks which are covered inside with stainless steel or titanium enamel. But judging by some of the reviews about the cumulative water heaters of this type, and they have their drawbacks. Over time in welding reacts with water, these materials allegedly begin to affect the smell and taste of water. Although users who have a similar boiler working for a long time, do not complain about such a problem.

Extra protection internal Baku gives the magnesium anode. It should be changed approximately once a year. The heater coated stainless steel set them too, but such frequent replacement they do not require, as the steel more resistant to corrosion.

Heat water

The Time of heating water depends on the capacity of the heating element and water heating element. To increase the power of many electric storage water heaters 50 litres volume set not one, but two heating element.

The User is granted the right to regulate how many Heaters to use all or just one. Besides, in the case of one failure, the second will continue to work. Boiler though will lose half power, but will remain operable until the repair.

Safety and comfort

The design of water heaters are elements that are not for heating water, and for the safe operation of the device. Chief among these is the thermostat responsible for controlling the temperature of the water. Preferably,below the boiler there was also an additional thermostat. But it is rather a rare exception to the rule.

Another Important factor is the insulation. Than the layer thickness the better. Usually in storage water heaters of 100 liters of volume, the water has time during the day to cool about 7 degrees. There is a pattern: the larger the boiler, the heat insulation layer thicker. Therefore, in models smaller and the water cools faster than a larger volume tank. When choosing a water heater it is recommended to pay attention to the amount of the magnesium anode. It is larger than, the less you will have to change it.

Value units

Prices of storage water heaters range from 5 000 to 50 000 rubles. Model with a small tank can be purchased for approximately $ 5 000. The price depends on the manufacturer. So, model the water heater 80 liters from Bosch Tronic 2000T ES 80 will cost 5,500 rubles. There is a perception that the best quality boilers are made in Germany. The Italian model is much cheaper, but although the German quality, the fundamental difference between them. They are arranged in the same way.

German model of the water heater 30 litres - AEG EWH 30 Trend is about 22 000 rubles.

However, you notice that the German instruments is much larger than Italian or Turkish. The case in the insulation layer - the German boilers it is much thicker. Thanks to them, the water cools during the day by about 5 degrees, thereby saving energy.

The Best cumulative water heaters, characterized by quality, reliability and ease of use are considered to be aggregates of the Italian company Thermex. Any company Thermex water heater made by special technology, invented in Japan, with the result that there is almost no corrosion of the metal and welds.

In addition, these models have the function of quick heat if necessary, allowing you to quickly get hot water and save time.

Another, no less famous Italian manufacturer of electric water heaters - Ariston. The firm represents a very diverse lineup. In each model set enameled water tank and installed magnesium anode. These measures are aimed at fighting corrosion and significantly prolong the service life of the boilers. The model with the smallest tank is provided by an electric storage water heater 50 litres.

The Company Ariston is a large part of the market of water heaters and produces about three hundred models. Storage water heaters Ariston favorably with the capacity, ease of installation and mounting. Boilers of this company are always modern and stylish design.

Well-Known manufacturer of water-heating equipment of the Swedish company Timberk, renowned for both quality cumulative water heater 80 liters and larger models. The company has production around the world. It is popular because of the quality materials of construction for the housing of boilers, high performance and high reliability devices. Along with these advantages, the products of this brand is not cheap.

AEG - German brand that produces boilers, having one of the highest degrees of protection of water among its competitors. In addition, the device AEG weigh not much. For example, water storage heater 50 gallons model AEG EWH 50 Trend weighs 21.4 kg. These boilers consume electricity efficiently, but are the result of a much more expensive counterparts.