Dual circuit
These are models KS TVM 16/20, TV 31.5/40, TV 20 and others. A number of double-circuit heaters are easily converted from gas to coal/wood and vice versa. Designed for heating areas up to 300 m². Simultaneously with heating, they heat water for domestic needs.
The secondary circuit is a copper coil, if necessary, it can be changed, thereby extending the operation of the equipment.
A double-circuit boiler has characteristics almost identical to those of a single-circuit boiler. Also made of steel, but more powerful than the single circuit versions. Available in 20, 30 and 50 kW options. Their weight is 150–200 kg.
Advantages of the boiler Don 16
Let's look at the main advantages of domestic Don 16 boilers:
Versatility
In those cases when heating is needed now, and the gas pipeline is already on the way, it is very convenient to install a solid fuel boiler, and then transfer it to gas at no special cost.
economy
The huge dimensions of the combustion chamber allow the solid fuel boiler to operate on one load for up to 8 hours, which is very good in comparison with analogues. The use of the American Honeywell draft regulator can reduce fuel consumption by 30%.
electrically independent
The boiler is designed in such a way that it does not require power supply during its operation. This parameter is especially important for owners of houses or cottages in new villages that are not yet equipped with power lines.
Hard water resistant
For central Russia, hard water is a common occurrence. It forms scale on the walls of the heat exchanger, pipes of the heating system and the DHW coil, which significantly reduces their service life. The materials used in Don 16 significantly reduce the impact of hard water.
Photo 5: Tying a floor-standing boiler on wood and coal Don 16
A few words must be said about the shortcomings. The main disadvantage can be called a relatively low efficiency, similar in value to self-made pyrolysis boilers for long burning. With the exception of work with the connection of a pellet burner, work on one load is also not great.
How to choose
Thermal power. Choosing it, you need to know not only the area that is supposed to be heated. If the device is chosen for heating a private house, you must also consider what material it is built from and how insulated it is.
In apartments, the location is important - central or corner. In the latter, it is always colder, so the power must be chosen with a margin
The approximate power of the device is determined by the ratio - 1000 W for every 10 squares of area. And for every cubic meter - 40-60 watts. But it is recommended for cold houses and apartments to take boilers with a heat output margin of 30%. Firstly, there will be no problems with heating during the most severe frosts, and secondly, the equipment will not wear out and last longer.
Dependence on electricity networks. This parameter is more important for reliability and stability than for efficiency. If the boilers provide for the consumption of electricity, for example for ignition, then it is insignificant.
The number of contours. The choice of this parameter determines the capabilities and cost of the heater. Single-circuit ones are chosen for heating, double-circuit ones, in addition to space heating, can heat water for domestic use.
Installation method. Wall or floor. The choice depends on the size of the room. Wall mounted versions are more compact.
The material of the heat exchanger is steel or cast iron. Cast iron is more reliable, they are not afraid of corrosion.
Type of combustion chamber. It is more convenient with a closed firebox: they are safer, do not waste the internal air of the premises, they are preferred today by the owners of houses and apartments that are not equipped with traditional chimneys.
How much do they cost
Equipment from domestic brands is a priori cheaper than imported ones, and the products of the Conord plant are no exception.
The price of boilers "Don" depends on the model, its power. An inexpensive single-circuit apparatus KS-T-16, designed for heating 160 m², costs about 17,000 rubles. The cost of a powerful double-circuit apparatus designed for heating 300 m² is 37,000 rubles.
Operation features
Each model is accompanied by an instruction in which the user can familiarize himself with the rules for operating the heater, its connection diagram, with design features, settings and adjustments.
The system is filled gradually, at a rate not exceeding 8 l/min. The water is fresh. Filling is continued until liquid appears in the overflow tube of the expansion tank.
Description of the ignition process:
- ventilation of the combustion chamber for 5-10 minutes, the main valve must be closed;
- checking the draft by approaching the paper strip to the viewing window;
- opening the gate for air supply and ignition of the flame;
- closing the door;
- temperature control with coil valve.
Mounting and strapping
The installation of boilers should be carried out by specialists, but it is useful for even users to know the installation rules. If the piping is carried out according to the gravity scheme, the heater is placed lower than the return pipes - this improves the movement of the coolant. The chimney is located inside the building.
If the chimney passes through unheated rooms, it must be insulated.
Connecting additional equipment
All Conord products are easy to use, but it will not be superfluous to equip the device with a thermostat - this device will make the equipment work as efficiently as possible. You can also purchase an additional coil in advance, in case of a breakdown. As standard, the heaters are equipped with an adjustable front damper.
Main features of boilers
The Don gas boiler has a number of design features that must be mentioned within the framework of this article, so that the potential buyer has an idea of what he pays money for when choosing the Rostov brand equipment. Among the advantages we note the following:
- The equipment is equipped with a highly reliable gas burner and thermo-hydraulic automation, which ensures its stable operation.
- Possibility of functioning on various types of fuel.
- High efficiency in heating large areas.
- Excellent economy and high efficiency. This result was achieved by engineers with a special water jacket device. During the operation of the unit, the coolant is distributed throughout the body of the apparatus. At the same time, the outside of the boiler is covered with a special heat-insulating material designed to reduce the loss of thermal energy.
- High structural strength achieved through the use of thick stainless steel as the body material. In addition, the equipment is able to withstand serious pressure drops, which is also a definite plus and relevant for Russia.
- The boiler is provided with a 3-turn system for the passage of exhaust gases, which increases its efficiency.
- Small dimensions and low weight, which simplifies installation and transportation.
- Ease of maintenance and cleaning of the boiler, thanks to the horizontal arrangement of doors and chimneys.
- The ability to clearly regulate the temperature in the room with the help of convenient and stable built-in automation.
- High power and reliability of units, as well as safety.
Let us consider in more detail several variations of the Don gas boiler.
Design features and main characteristics
Like most solid fuel models, the Don 16 boiler is a steel device with a water jacket. Its main part is the firebox. Manufacturers deliberately went to increase its size so that it can hold more fuel, thereby ensuring a longer burning time. The fuel chamber is made of a special alloy that makes it resistant to corrosion.
Photo 1: Steel universal solid fuel boiler Don 16
The second significant part of the Don 16 boiler is the heat exchanger. Its task is to ensure maximum heat removal and transfer it to the coolant. To ensure maximum heat removal, the design of the heat exchanger is made in such a way that the fire tubes pass through it. For even better heat transfer, turbolizers are installed inside them. The heated coolant is fed through the upper pipe into the heating system. Water is returned to the solid fuel boiler through the return pipe. The coolant temperature is controlled by a temperature sensor.
Photo 2: Ash pan of the Don 16 boiler of the old modification
In double-circuit boilers Don 16, a coil is installed inside the heat exchanger, around the fire tubes. Due to its proximity to the heat source, the water in it heats up quickly, providing the owner of the house with uninterrupted hot water for sanitary needs. The flow rate is controlled by a valve or mixer.
On the forward panel there are shrovochny and loading doors. They serve for loading and excavating ash, as well as cleaning internal surfaces. Adjustment of thrust, and hence the intensity of combustion, occurs with the help of the gate handle.
Photo 3: Gas burner for a solid fuel boiler with a Don 16 water circuit
In addition to the 16 kW universal boiler, 30 kW models are also available. Also in the line there are devices capable of operating only on solid fuel. Here are some technical specifications that the manufacturer gives on the official website:
| Model | KS-TG-16/20S | KS-TG-30/40S |
|---|---|---|
| Power (coal/gas), kW | 16/20 | 30/40 |
| Room area (coal/gas), m² | 160/200 | 300/400 |
| Efficiency (coal/gas), % | 86/90 | 86/90 |
| Gas consumption, m³/h | 1,3 | 2,5 |
| Price, rub | 19 800 | 45 000 |
To ensure operation on gas, the screw door and grates are dismantled, and a gas burner controlled by automatics is mounted in the lower opening of the front panel. The upper part of the firebox is closed with a firebox sheet tightly against the front wall.
Don 16, by installing a pellet burner and a bunker with a control unit, easily turns into a Russian-made pellet heating boiler. Unlike gas, the connection of equipment to work on pellets does not require registration. Pellets are much more efficient than wood and coal and will help you save a lot on heating your country house or summer cottage.
Boiler Don 50
This non-volatile universal heating unit is characterized by high reliability and performance. This is confirmed by technical tests and relevant certificates. The rated power of the equipment is 50 kW. At the same time, the Don 50 boiler consumes only 3 cubic meters of gas per hour, providing heat to living quarters up to 500 square meters.
The efficiency of this device reaches 85%, and the dimensions are 850x700x1430 millimeters. Installation of the system is quite quick and easy, and daily proper operation does not require special skills and scrupulousness.
Model overview
Let's describe the best models.
COP 16
Of all the models presented by domestic manufacturers, one of the most popular is the Don KS 16. Its main advantages are: excellent technical characteristics, convenient operation and economical consumption of energy resources.
Having a domestic assembly and components, it is ready to work in the most difficult climatic conditions. It is the climate of Russia that does not allow many European analogues to compete with domestic developments. This line includes modifications that differ in the number of contours and a number of smaller differences.
Key technical parameters:
| Heating area, m² | 160 |
| Natural gas consumption, m³/h | 2,0 |
| Thermal power, kW | 16 |
| Efficiency,% | 90 |
| Weight, kg | 139 |
| Dimensions (HxWxD), mm | 1030x470x700 |
| Cost, rub. | 22 000 |
KS-T-11
Steel. Non-volatile. For small objects. Works on gas or solid fuel - the burner changes.
Automatic installed. Thanks to the Honeywell regulator, energy consumption is reduced by 30%. The material of the furnace is carbon steel, resistant to corrosion.Adapted to hard water.
| Heating area, m² | 110 |
| Natural gas consumption, m³/h | 2,0 |
| Thermal power, kW | 11 |
| Efficiency,% | 80 |
| Weight, kg | 65 |
| Dimensions (HxWxD), mm | 680x470x580 |
| Cost, rub. | 12 500 |
- Floor installation.
- Steel heat exchanger.
- The removal of combustion products is a chimney.
"Don Eco"
An economical version, the main difference of which is its compactness. Reliable Italian automation and an efficient heat exchanger are incorporated in a small apparatus. It features stable burner operation and high heat transfer.
The boilers are designed for heating small areas; they can be used with a flow-type water heater (“DON” or “CONORD”). In tandem with a water heater, this model will provide a small house with heat and hot water.
For example, here are the technical characteristics and design features of Don Eco KS-G-12S:
| Heating area, m² | 120 |
| Natural gas consumption, m³/h | 1,32 |
| Thermal power, kW | 12 |
| Efficiency,% | 90 |
| Weight, kg | 34,3 |
| Dimensions (HxWxD), mm | 650x230x573 |
| Cost, rub. | 13 500 |
- The pressure of the heating system (min / max) - 0.1 / 1.2 bar.
- The heat carrier is water.
- One circuit.
- Floor execution.
- Open firebox.
- Steel heat exchanger.
- Discharge of gases - through a vertical chimney.
- Case color - white.
- Warranty - 2 years.
DonStail
New gas equipment from the CONORD plant - models with increased DonStail performance. Powerful heaters with a strict and stylish design. White color and decorative perforation on the body create a feeling of lightness, the device harmoniously fits into a modern interior.
Thanks to the special design of the heat exchanger and the Sit automation and the Polidoro burner, these modifications have high efficiency, low energy consumption and are completely safe.
Characteristics of the single-circuit version of DonStail KS-G-12 S:
| Heating area, m² | 120 |
| Natural gas consumption, m³/h | 1,32 |
| Thermal power, kW | 12 |
| Efficiency,% | 92 |
| Weight, kg | 73 |
| Dimensions (HxWxD), mm | 835x343x515 |
| Cost, rub. | 18 000 |
- Floor execution.
- Open firebox.
- Steel heat exchanger.
- White colour.
- Warranty - 3 years.
- Piezo ignition.
Powerful boilers "Don"
For heating large cottages, industrial and warehouse buildings, high-power devices are used:
- At 40 kW. Efficiency - 76%. Heats a room up to 400 m². Weight - 290 kg. Dimensions are small - 700x850x1430 mm.
- At 50 kW. Consumption 3 m³/h. Provides heat for cottages up to 50 m². Efficiency - 85%. Dimensions - 850x700x1430 mm.
- For 100 kW. The most powerful option is for 1000 m². Efficiency - 87%. Weight - 560 kg. Dimensions - 1280x900x1090 mm. An ideal solution for large country houses and non-residential premises.
