Dual-circuit
These are models KS TVM 16/20, TV 31.5/40, TV 20 and others. A number of dual-circuit heaters can be 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 prolonging the operation of the equipment.
A double-circuit boiler has characteristics almost similar to those of a single-circuit boiler. Also made of steel, but more powerful than single circuit versions. 20, 30 and 50 kW options are available. Their weight is 150–200 kg.
Specifications
In some models, the temperature is regulated by a traction gearbox. The automation kit includes a supply fan and an operating mode controller.
Characteristics of coal-gas boilers:
- productivity – from 16 to 50 kW;
- heats rooms from 160 to 500 m2;
- The efficiency of gas models is 82 – 90%, for solid types – 75 – 80%;
- operating pressure of the energy carrier in the coil is 0.6 MPa, in the boiler – 0.12 MPa;
- The coolant heats up to +95°C;
- internal dimensions of the smoke extractor – 202 x 96 and 252 x 97;
- Boiler sizes range from 0.7 to 0.85 m in length, from 0.47 to 0.7 m in width, from 1.18 to 1.43 m in height.
Gas units consume from 2 to 6 m3/hour depending on productivity. The combustion products removed contain carbon monoxide (no more than 119 mg/m3) and nitrogen oxide (less than 240 mg/m3).
Weight
The mass of the boilers ranges from 140 to 270 kg.
Weight of some models:
- KS-T-16 – 153 kg;
- KS-TVm-16 – 190 kg;
- KS-TG-16 N – 155 kg;
- KS-TGVm-16N – 188 kg;
- KS-TGVm-16/20N – 200 kg
- KS-TV-31.5 – 266 kg;
- KS-TGV-31.5/40 N – 259 kg;
- KS-GV-50 N – 266 kg
The weight of the boiler depends on the dimensions, the number of plates in the heat exchanger and productivity.
How to choose
Thermal power. When choosing it, you need to know not only the area that is supposed to be heated. If a device is selected for heating a private home, you must also take into account 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 reserve.
The approximate power of the device is determined by the ratio - 1000 W for every 10 square meters of area. And for every cubic meter - 40–60 W. But it is recommended for cold houses and apartments to take boilers with a heating capacity reserve of 30%. Firstly, there will be no problems with heating in the most severe frosts, and secondly, the equipment will not wear out and will last longer.
Dependence on power grids. This parameter is more important for reliability and stability than for efficiency. If boilers require electricity consumption, for example for ignition, it is insignificant.
Number of circuits. The capabilities and cost of the heater depend on the choice of this parameter. Single-circuit ones are chosen for heating; double-circuit ones, in addition to heating rooms, can heat water for domestic use.
Installation method. Wall or floor. The choice depends on the area of the room. Wall-mounted versions are more compact.
Heat exchanger material - steel or cast iron. Cast iron ones are 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 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 products are no exception.
The price of Don boilers depends on the model and its power. An inexpensive single-circuit device KS-T-16, designed to heat 160 m², costs about 17,000 rubles. The cost of a powerful double-circuit device designed to heat 300 m² is 37,000 rubles.
Model overview
Let's describe the best models.
KS 16
Of all the models presented by domestic manufacturers, one of the most popular is the “Don” KS 16. Its main advantages: excellent technical characteristics, convenient operation and economical consumption of energy resources.
Having domestic assembly and components, it is ready to work in the most difficult climatic conditions. It is the Russian climate that does not allow many European analogues to compete with domestic developments. This line includes modifications that differ in the number of circuits 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. Operates on gas or solid fuel - the burner is changed.
Automation installed. Thanks to the Honeywell regulator, energy consumption is reduced by 30%. The firebox material 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 exhaust of combustion products is a chimney.
"Don Eco"
An economical version, the main difference of which is its compactness. The small device contains reliable Italian automation and an efficient heat exchanger. 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 home with heat and hot water.
As an example, here are the technical characteristics and design features of the 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 |
- Heating system pressure (min/max) - 0.1/1.2 bar.
- The coolant is water.
- One circuit.
- Floor-standing version.
- Open firebox.
- Steel heat exchanger.
- Gas removal is through a vertical chimney.
- Body color: white.
- Warranty - 2 years.
DonStail
New gas equipment from DonStail models with increased performance. Powerful heaters with a strict and stylish design. The white color and decorative perforations on the body create a feeling of lightness; the device fits harmoniously into a modern interior.
Thanks to the special design of the heat exchanger and Sit automation and 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-standing version.
- Open firebox.
- Steel heat exchanger.
- White color.
- 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. The 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.
- At 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.
Range of boilers Don
The assortment range presented by the Don brand is quite wide. To make it easier to choose the appropriate option, you need to familiarize yourself with the nuances of labeling these heating devices. The numbers in the marking indicate the power of the boilers, and the letters mean the following:
K - this letter is in the marking of all models, because it means the name of the device - “boiler”.
C – is the letter designating the material from which the boiler is made – steel.
T - indicates that the equipment is solid fuel, but can be reconstructed by purchasing and installing a gas burner.
G - installed in the case when the gas burner is included in the standard package.
Vm – designation for an additional DHW circuit.
As an example, let’s take the solid fuel boiler Don KS T 16. This is a single-circuit model, which was manufactured specifically for heating with a power of 16 kW. Well suited for a room with an area of 150-160 m².
The solid fuel boiler Don 16 kW can also be double-circuit. 30 kW models are also available. Here are some technical characteristics of these devices.
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 |
Cost, rub. | 19 800 | 45 000 |
Features of operation
Each model is accompanied by instructions in which the user can familiarize themselves with the rules for operating the heater, its connection diagram, design features, settings and adjustments.
The system is filled gradually, at a rate of no more than 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:
- ventilate the combustion chamber for 5–10 minutes, the main valve must be closed;
- checking traction by bringing a paper strip closer to the viewing window;
- opening the air supply gate and igniting the flame;
- closing the door;
- temperature control by coil valve.
Installation and strapping
The installation of boilers should be carried out by specialists, but even users benefit from knowing 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 structure.
If the chimney passes through unheated rooms, it must be insulated.
Connecting additional equipment
All products are easy to use, but it would be a good idea to equip the device with a thermostat - this device will make the equipment operate as efficiently as possible. You can also purchase an additional coil in advance in case of breakdown. As standard, the heaters are equipped with an adjustable front damper.
Peculiarities
The Don solid fuel boiler will efficiently heat your home and other premises and will be able to ensure the supply of hot water. The device is characterized by its own characteristics and has both advantages and disadvantages.
As for the features, Don boilers consist of a water jacket and smoke pipes. The pipes that are removed from the combustion chamber are passed through the water jacket of the device. In order to increase the efficiency, turbulators are installed in the pipes. A special temperature sensor controls the water heating temperature.
Water is heated by convection and enters the heating system through the upper pipe of the device. Through the lower pipe, liquid is supplied to the boiler, which has already given up its energy in the batteries and pipes.
Long-burning solid fuel boilers Don are produced as single-circuit (for heating) and double-circuit (for heating and hot water). In the latter case, the pipeline is connected to a copper coil located in the boiler. As the liquid passes through this device, it heats up. To regulate the heating of the liquid that is supplied to the water supply, the speed of its passage through the coil is changed by turning the valve.
Reviews
KS-TGVm-16: Nikolay V., Dolgoprudny
We bought it for 18,000 rubles two years ago. The price is attractive; they are much cheaper than their Proterm analogues, for example, or Buderus. We use any fuel - gas and solid. On natural gas the power is 20, on solid fuel 16 kW. We heat about two hundred square meters with it, plus it also heats the water. It looks unprepossessing, rustic, but for me the most important thing is that I can always find any components for it.
KSts-G-20S: Georgy T., Velikie Luki
This device has one plus - ease of maintenance. It is easy to understand its operating principle and troubleshoot simple problems. The rest are shortcomings. During normal operation, it consumes one and a half cubic meters of gas per hour, and if it’s minus 25 outside, then only 2.5 cubic meters. They promise 92% efficiency, but for me 5,000 rubles for heating one hundred cubic meters is too much.
Floor-standing boilers from Rostov are in demand among consumers who are willing to sacrifice the technological “bonuses” offered by their European counterparts. Don heaters are adapted to Russian conditions, reliable and affordable.