Contents
The Daewoo gas boiler is a product of the Korean company DAEWOO Gasboiler, which is a division of the world famous Daewoo Corporation. The main advantage of their products is an affordable price, which attracts our consumer. But as they operate, the owners of Korean boilers face all sorts of technical problems and malfunctions. Consumers also complain about the noise emitted by DEU gas appliances, although the manufacturer claims the silent operation of its boilers.
About Us
Daewoo was founded in 1967. In translation, the name means “Great Universe”. Today it is a whole group of companies that own their own research centers that develop and patent innovative technologies. So, for example, the company for the first time used an adapted ignition system – MICOM electronics controls the ignition of the burner. The company produced the first gas boiler in 1988. It is a major exporter – Daewoo products are supplied to a dozen and a half countries.
Design features
A double-circuit wall-mounted apparatus is a mini-boiler room that provides independent heating and hot water supply (DHW). The company “Daewoo Gasboiler” produces atmospheric and turbocharged boilers. The device of double-circuit hinged models is characterized by the same technical characteristics and design solutions:
• Separate heat exchangers.
• Primary heat exchanger made of high quality copper.
• Burner material – stainless steel.
• Secondary heat exchanger (for hot water supply) – high-speed, lamellar.
• Automatic power control – changes smoothly, depending on the heat load.
• Simple and convenient operation due to microprocessor control.
• Intelligent adjustment – MICOM microchip.
• There are control systems and a remote control with a built-in temperature sensor and a liquid crystal display. The heater is easy to control from anywhere in the house.
• Use of a circulation pump. Thanks to the successful parameters and simple design, the developers managed to replace the three-way valve. A two-way pump was developed and implemented, in which a “switch ball” system was used. The latter has a high throughput. Hot water is heated evenly. And most importantly, the degree of heating is not affected by the number of users – no matter how many water intake points are open at the same time, the water maintains a stable temperature. The pressure in the water pipes also does not affect the heating of the water.
• Self-diagnosis. The equipment automatically detects problems, and the test results are displayed on a remote control unit equipped with a digital display.
Among the clear advantages of Korean heaters is a simple design. Experts assure that their disassembly, repair, adjustment and maintenance does not cause any difficulties.
The estimated price of boilers of the DEU brand is 15-000 rubles.
Design
Structurally, the device consists of several component groups. One of the main elements is the burner. It serves the fuel and transfers its energy to the heat exchanger, which is connected to 1 or 2 circulation pumps. The listed components constitute the infrastructure along which the process flows.
To control the operation of the equipment, the design includes a thermostat, pressure gauge and thermometer. The listed devices provide optimal performance.
Atmospheric boilers
A characteristic feature of atmospheric-type mounted apparatuses is an open firebox. Oxygen is supplied to the burner due to natural circulation. Exhaust gases are removed in the traditional way – through the chimney. The purpose of such devices is autonomous heating of housing up to 200 m2. Thanks to thoughtful design solutions, atmospheric modifications have the following advantages:
• Safe.
• Long service life.
• Simple assemblies and details.
• Quiet burning of the burner – in any case, the manufacturer claims so.
When mounting a mounted device, it is important to follow the rules for connecting gas equipment. During operation, the oxygen in the boiler room is consumed. Therefore, the room in which the device with an open firebox is installed must comply with the technical safety standards regarding the minimum area, ceiling height, forced ventilation, etc.
Turbocharged boilers
Unlike atmospheric, turbocharged models have a closed firebox. Combustion air is forced. Such devices require a coaxial chimney. The main advantage of turbocharged versions is the ability to install in any room. It is usually placed in the kitchen. He does not need a separate boiler room. The device is compact and can fit in a kitchen cabinet. It weighs about 26 kg, so it can be hung on any wall, even plasterboard. The kit comes with everything you need for mounting. All products are also equipped with remote controls. With the help of the latter, you can adjust the parameters of the equipment at a distance.
The principle of operation involves the organization of forced withdrawal. To remove the exhaust gases, you need electricity. Turbocharged devices are distinguished by decent efficiency (91%) and economical fuel consumption. They have two circuits, and their power is 11,6 or 15,1 kW, and can heat housing with an area of 115 and 151 square meters. Important technical characteristics of turbocharged boilers of the brand “Daewoo”:
• Maximum water pressure. Heating – 3 atm. DHW – 7 atm.
• Energy consumption 0,1 kWh.
• Maximum water temperature. Heating – 85 °C. DHW – 60 °C.
Installation and connection
Installation of Daewoo Gasboiler equipment does not cause problems for specialists, but problems may arise during self-assembly. Dealers selling products of a Korean company have the right to refuse repairs under warranty if the consumer himself was involved in the installation. It should be noted that when tying, it is necessary to connect to electrical networks and install thermostats. To implement such operations, a special permit and knowledge of the PUE is required.
The main thing during installation is strict adherence to the recommendations given by the manufacturer. See the manual for a wiring diagram.
Which is better – naturally aspirated or turbocharged?
In apartments, it is better to place turbocharged models connected to a coaxial chimney. For them, the requirements and fire safety rules are less stringent than for atmospheric counterparts.
Turbocharged versions have a drawback – they are volatile. Atmospheric – non-volatile, they are not afraid of power outages. To insure in case of a lack of light, the owners of turbocharged models install backup power or a generator. Both options represent a worthy alternative to more expensive European products.
Models overview
DGB 160MSC
This volatile model is suitable for heating an average apartment. Wall execution. Two circuits – heating and hot water. Weighs 27 kg – as befits a hinged modification. Proper installation and proper use of the control system is essential for stable and economical operation. Features an improved security system. Also, the developers have optimized the stabilization system when supplying fuel. Efficiency – 91%. Closed furnace. Has auto ignition. The manufacturer also offers turbocharged modifications:
- DGB-130MSC. 15,1 kW. Heats up to 151 sq.m. 91% efficiency. 27 kg.
- DGB 200 MSC. Heating area 230 sq.m. Heat output 23,3 kW. Estimated price – 28 800 rubles. Self-diagnosis. There is protection against freezing and overheating. Expansion tank 6 l. 27 kg – weight. Gas consumption 2,4 cubic meters / h.
- DGB 250MSC. Heating area 290 sq.m. Power 29,1 kW. 33 kg.
- DGB 300 MSC. Heating capacity (max / min) 11,6-34,9 kW. 38 kg. Designed for heating an area of 349 sq.m.
- DGB 400 MSC. Maximum heat output 46,5 kW. Able to heat 465 sq.m. 35 kg.
Alto Daewoo 110 MCF
Mounted type atmospheric boiler. Electronic control maintains the optimum temperature in the room. Double-circuit – heats and heats water. Little noise. Copper heat exchanger. Weighs 29 kg. White. Efficiency – 91%. Power 12,8 kW. The cost is 29 rubles. Such a device – with an open firebox, needs a separate room. It is better to install it in a private house. The manufacturer offers analogues that differ in power:
- 130 MCF 15 1 W. 000 kg. 29 30 rubles.
- 160 MCF 18 6 00 W. The weight is the same as before. 31 rubles.
- 200 MCF – 23 300 W. 35 kg. 33 rubles.
DWB-201 GOM (Turbo)
Previous gas appliances are focused mainly on small housing. 201 GOM is preferred by owners of large private houses. This powerful equipment is 23,3 kW. It will heat 250 sq.m without any problems. Mounted type. 8 l – expansion tank. Weighs 28 kg. The cost is 35 rubles. Chimneyless. The difference from traditional turbocharged versions is the lower placement of the turbine. Electronic ignition.
User’s manual
The user during operation deals with different groups of parameters. The work will be built automatically – a person will not have to adjust it daily. But it is necessary at the beginning of operation to drive the device through different operating modes – to test for specific needs. It is necessary to set the heating modes by setting the temperature limits. Similarly, set the parameters of the mode of water supply. It is noted in the instructions that frost protection in auto mode starts only when the corresponding mode is turned on. This subtlety is taken into account when restructuring performance indicators from the season “winter” to the season “summer” and vice versa.
Maintenance Instructions
The user must fine-tune the automatic functions. Korean gas heaters have functions – air removal, container disinfection, self-diagnosis and others. During operation, the owner of the equipment must be ready to perform some simple maintenance operations – cleaning the chimney, burner, etc. Spare parts have to be purchased as needed. A typical list of infrastructure elements includes a heat exchanger, an expansion tank, branch pipes, fans, pipes, and accessories.
Reviews
Gasboiler DGB-160 MSC: Mikhail D., Belgorod.
I’ve been using it for three years. Of the benefits – gas savings, beautiful in appearance. Cons – noisy when heating water. Even worse – when the light is turned off, it does not work. The first thing I liked was that the gas bills became smaller. It took up little space – it hangs on the wall, it does not interfere with anyone. Convenient ignition – electronic. There is a backlit control panel. In order not to turn off during power outages, I had to put a backup power supply. Doesn’t turn on with low water pressure. Easy installation, nothing special is needed – ordinary metal-plastic pipes, fasteners, taps. There are no welding jobs. The cost paid off in two winters.
DGB-250MSC: Alina E., Altai Territory.
We bought it because of the beautiful design and attractive price. I can’t say enough good things about the job. Perhaps we got a factory defect. He shook his nerves – some errors were constantly displayed – either there was not enough water for him, then the switch was turned on for more than an hour and a half, then the electric current was not like that. We don’t have a service in the village, it’s not easy to call a master, so we often had to just sit near the boiler in winter.
DEU boilers are compact heating devices that are convenient to use in apartments and private houses. Despite the convenient operation and quiet operation, Daewoo products cannot be called the leader in consumer demand. Being in the middle class, Korean equipment is notable for its affordable cost – this is the main factor that encourages domestic consumers to buy it.