Features of Czech boilers Drazice

Living in the area without the ability to connect to the central heating system and in the absence of hot water, housing equipment storage water heater is a must. And in summer and in cities, hot water is often cut off due to accidents, preventive maintenance or repair of networks. The absence or disconnection of hot water in all these cases will not become an unsolvable problem. It is only necessary to install a Drazice / Drazice boiler in a house or apartment. And then the amount of water heated by Czech water heaters is enough to meet the needs of any family.

Drazice produces three types of water heaters:

• flow;
• indirect;
• combined.

Unlike the former, indirect and combined have a higher efficiency and a lower level of expended energy. This is due to the fact that after heating the entire volume of water, the boiler starts working as a thermos, and the heating element is connected only to maintain the set temperature. Heat is drawn into the water heater either from autonomous heating devices or from stationary sources of electricity.

The Czech company Drazice was founded in 1900. The most famous in Europe, she received water heaters, which produces more than 50 years. And now the company is the absolute leader in this field in its own country and one of the main suppliers of this technology to the EU countries and dozens of countries around the world. Boilers are produced in a very wide model palette, their volume varies in the range from 5 liters to 1 ton. And since the consumption of water in each family is different, as well as the number of people in it, then the models may differ significantly in terms of volume, design and power.

The choice of boilers from the Czech manufacturer is really great.

They can be equipped with two or one coil, have additional measuring devices, be equipped with or not auxiliary electric heaters, there are also boilers operating under conditions of high pressure. In the shops of the CIS countries for sale are offered about 40 models of indirect heating boilers Drazice.

Each homeowner will be able to make the installation independently. No special engineering knowledge and skills are required. It should be noted that professionals recommend connecting the boiler through circulation pumps. The entire installation process should be carried out in stages, therefore, it is necessary to be patient.

A quick installation guide includes a series of sequential operations.

• Inside the boiler is a coil. Two branch pipes depart from it. The top one, having a connection to the supply pipe, and the bottom one connecting to the outlet pipe. This compound provides higher efficiency.
• According to the instructions, the installation of the Drazice boiler is carried out using a three-way valve, which is placed at the inlet of the coolant into the boiler. Valves allows you to control the flow of hot water from the boiler. This makes it possible to direct it to the heat exchanger in cases when the liquid contained in it has cooled. Connecting in this way an additional device, the efficiency of the heating system will not be lost.
• At the upper inlet, it is required to install a non-return valve, which will not allow hot water to enter the pipe with cold liquid.
• According to safety requirements, it is recommended to put the air duct system on the recirculation ring.
• At the outlet, an expansion tank should be installed that will balance the pressure in the hot water system.

Consider the most popular boilers of indirect heating by Drazice. These can be budget samples with a small tank size or very expensive with advanced technical stuffing. Let us examine the advantages, disadvantages and features of some of the most popular models.

This model is considered to be one of the best-selling models produced by Drazice. The capacity of the enameled tank holds 208 liters of water. Indirect heating comes from two heat exchangers with an area of ​​1.45 sq. M. m. This scale allows you to get 32 ​​kW of thermal power. The threshold for heating water in the tank is up to a temperature of +90 degrees. The pipes from the heating system to the boiler are brought to the side, and the model itself has a floor construction.

A distinctive feature of this unit is the minimum time of heating water. This is his great advantage. From the mark of +10 degrees to a temperature of +60 it takes only 14 minutes. It should be noted that this rate of heating is characteristic of almost all indirect aggregates. In the tank, the working pressure reaches 0.6 MPa, the pressure in the heat exchangers is 0.4 MPa. The weight of an empty boiler is about 100 kg.

Very similar design for a similar model Drazice OKC 160 NTR. But this boiler has only one heat exchanger and the volume of the tank is also somewhat less - 160 liters. In order to save money, it can be considered a worthy alternative with high quality performance.

An indirect water heater of impressive size can be used for a large number of consumers in living conditions or for commercial purposes.For example, installation in a building with two bathrooms will be justified. The boiler can easily fill two full baths with hot water and there will still be room for a dishwasher and other smaller requests. If the unexpected happens, and someone does not have enough water, then within 20-25 minutes 296 liters of hot water will be ready for use again.

Here are its features:

• the circulation pump is controlled by an integrated system;
• in addition to indirect heating, the possibility of installing an electric heater is implemented;
• spiral heat exchanger has a large area;
• against corrosion saves enameled coating and anode of magnesium;
• heating water to a temperature of +90 degrees;
• customer reviews are mostly positive;
• overpressure protection installed.

This is one of the most popular indirect wall heating boilers of the Drazice company. Its capacity is relatively small, it is 120 liters. But considering the heating rate of 10-15 minutes - this is quite enough. The heater is mainly used in domestic conditions. The maximum temperature of heated water is +80 degrees.You can control the heating process with a thermometer on the front panel of the case. On the bottom of the device are all the connection systems, here are the controls and display.

The 160-liter inexpensive Drazice floor-standing boiler with a pipe in the upper part. In this model, there is no possibility of installing a heater. It works solely on indirect heating. In the warm season, overlapping of the heating system will be fully justified, leaving the water heater itself for circulation. This is not just realistic, but also quite economical (for example, a gas tank will heat up 3-4 times faster with the help of gas).

It is equipped with an enamelled tank and, as an additional protection against corrosion, is supplied with a magnesium anode. Greater reliability and durability of the heat exchanger gives the performance of stainless steel. Having only indirect heating, the boiler power is 32 kW. It can guarantee a heating temperature of +80 degrees in 17 minutes.

This is a fairly large outdoor water heater weighing 155 kg per 500 liters.The water is heated by two heat exchangers with an area of ​​1.5 m2 and 1 m2. One of them is the top one for additional heating using a boiler, and the bottom one is used to connect solar collectors. The volume of the heat exchanger of indirect heating of the solar system is 10.5 liters, and its capacity directly depends on solar efficiency. Power apparatus - 27 kW. Available designation taps and thermal relay.

The capacity of the steel enameled tank is 295 liters. The control of all functions is located on the LCD display: set temperature from +7 to +90 degrees, protection against freezing or overheating, setting the date and time, protection against overheating, and so on. Up to +60 degrees the model heats up in 16 minutes.

This is one of the most expensive models of Drazice, which is understandable in terms of rich technological fullness.

The most popular models of indirect water heaters of the Czech manufacturer Drazice / Dražice are considered here. All the others are modifications with a larger or smaller tank volume. Each has its advantages and disadvantages. And each of them deserves attention.

The main positive point of indirect water heaters Drazice is that they are produced only in the Czech Republic. And judging by the reviews of the owners who have been operating these boilers for years, there are no complaints about the quality of the products. The equipment works reliably, and even the price, which could conditionally be attributed to the minuses, is not. Many users, based on their own experience, are advised to contact specialists during the installation of equipment. Both professional and nerves are fine.

As a disadvantage of indirect heaters, a very rigid reference to the heating apparatus can serve. It turns out that to heat the water, you need to turn on the heating, even in warm weather. Therefore, care and attention is needed when choosing a boiler.

About what features of Czech boilers Drazice, see the following video: