Using traditional water systems for heating rooms with a large area is not always effective, as practice shows. This is due to the fact that such projects are very, very material-intensive, and also do not allow to achieve the desired result. This is due to the fact that with free air convection, heat immediately rushes up, while the climate below the room remains cool, which leads to overpayments and inefficient use of energy.
A completely different matter is an air-heating unit that works by pumping warm air in the right direction. But in order to make the right choice, you need to consider the main varieties of such devices.
The principle of heating a large room
Air heating systems have been used in industrial plants for a long time. With the advent of ventilation equipment, these systems have proven themselves well in office buildings, shopping centers, cinemas and other facilities where the floor area is large. These units and private houses did not bypass. They directlythey heat the air, which is the simplest way to operate such devices.
What else you need to know
The principle of operation is that the axial fan, located behind the heating element, blows the air that is drawn from the room. The air heater controls the temperature with a thermostat that stops heating when a certain value is reached. To heat people and equipment that are in the office or workshop, such devices are installed at different points at a height ranging from 3 to 4 m or under the ceiling. The jet is heated from top to bottom, which is provided by turning the blinds, they are installed in front of the heater. This effect can also be achieved thanks to the correct tilt of the body forward.
Main types of air units for heating
An electric heating unit can be classified according to two criteria: the type of heating element and the air flow. If average flow rates of heated air are needed, which should not move throughout the building, then axial fans are used. If we are talking about more powerful systems that are designed to serve entire buildings or several rooms, then they work due to centrifugal fans.
An air duct is fixed from the free side of the heat exchanger flange, it is necessary for heat distribution within the whole building or one room. To provide heatingair inside the equipment, steam, water or electric heat exchangers are installed. The scope of use of electric heaters is limited, there are several explanations for this. The first is the lack of electrical power on the line. To obtain 1 kW of heat, 1 kW of electricity is needed, which indicates that a hall of 500 m22 will require a power equal to 50 kW. There are few networks that are designed to supply this amount of energy.
For reference
Another difficulty is expressed in heating control, since operation at the maximum is not always required, while electrical units of large power are not regulated smoothly. This requires expensive equipment, so usually the devices have two or three stages of heating. Most often, such devices are used in rooms of medium or small size, since the maximum power of the devices in rare cases exceeds 30 kW.
Technical characteristics of VR1 and VR2 fan heaters
Volcano fan heater is available for sale in two varieties, which were mentioned in the subheading. In the first case, the number of rows of the heater is limited to one unit, in the second - to two. The maximum air flow per hour is 5500 and 5200 m3 respectively. The heating power range in the first case varies from 10 to 30, in the second - from 30 to 60 kW.
The increase in air temperature is18 and 33 °C, respectively. The maximum coolant temperature in both cases is 130 °C. The Volcano fan heater is also characterized by the maximum working pressure, for both models this parameter is 1.6 mPa. The maximum range of the air jet is also the same and is 25 m. In the heater, the volume of water is 1.7 and 3.1 dm, respectively. The male thread has a diameter of ¾ inch. The air-heating unit Volcano VR1 weighs 29 kg without water, while the second of the described models has a mass of 32 kg. Engine power in both cases is 0.61 kW. The engine speed remains unchanged at 1310 rpm. The second model has a motor protection class within 54 IP.
Main advantages of Vulkan air-heating units
If you need a heating unit, then you can consider one of the above models as an option. The main advantages of these devices are:
- high efficiency fan heater;
- low maintenance cost;
- optimum air throw;
- reduced noise level;
- great heat output;
- full regulation of technical parameters;
- easy and fast installation and assembly.
With the help of this equipment you will be able to heat up, and then automatically maintain the desired level of air temperature in a room or building. In this case, the coolant will heat upup to a mark of 90 ° C. The Vulkan heating unit does not use outside air masses in its work, as it is designed to recirculate the air that is inside the building.
As an additional feature, it can be noted that the units have the ability to redistribute air masses, this is ensured by built-in axial fans and guide grilles in the form of blinds. With the help of the latter, flows can be directed to almost any part of a structure or room.
Why choose Vulkan heating units
The above-described wall-mounted heating unit allows you to use it for heating small and medium-sized rooms. This parameter can be changed from 100 to 300 and from 300 to 500 m2. This equipment can also be installed in fairly large rooms, the area of which varies from 800 to 1500 m2. In this case, the air will be heated at a high speed, which proves the economy and efficiency.
These fan heaters are excellent for heating large industrial and non-industrial premises such as factories, workshops, large department stores, factories and supermarkets. This includes car dealerships, wholesale warehouses, parking lots and small workshop-like buildings.
The air-heating unit described in the article, the characteristics of which were presented above, is equipped with automation that allows you to control the temperature in the room at the required level withouthuman intervention. The use of automatic temperature control is recommended when it is necessary to heat wholesale rooms and warehouses, where it is necessary to maintain the optimum temperature, including in the absence of a person. In this case, the volume of the room will not matter.
Conclusion
The air type heating unit has many advantages. For example, installation is carried out quite quickly, because the equipment requires only two pipes to be connected: supply and return. These units are very economical, which is especially noticeable when compared with convection heating. The thing is that the heated air is distributed throughout the building as evenly as possible. If we consider convection systems in more detail, then during their operation the heat rises up, and the room remains cool from below.
