INFRA infrared heaters - operating principle

Infrared heaters have the lowest thermal inertia of all heating systems. The pleasant warmth from the heated source can be felt just a short time after switching on the device. The infrared radiation produced by the infrared tube heater is converted into heat energy only after it has reached the human body, resulting in an increase in thermal comfort in relation to the air temperature. The air is heated secondarily by convection generated by heated building components (floor, walls, worktops, etc.). Heating in this way makes it possible to achieve (in special cases) a negative temperature gradient. A characteristic feature of radiant heating is that this heating method does not cause air movements and thus does not adversely affect air purity. As the only heating method, radiant tube heating enables the designation of a heating zone of a building in which the required thermal comfort parameters are maintained without the need to erect building partitions. Heating with tubular infrared radiant heaters enables a significant reduction in the operating costs of the heating system. They are used in the heating of buildings, particularly large buildings, such as production and storage halls, hangars, etc: production and storage halls, hangars, sports facilities, in animal husbandry, etc.

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INFRA infrared heaters - advantages of use

• Significant reduction of the positive temperature gradient, heat concentrated near the floor
• Zone heating allows different temperatures and operating hours to be set in the heating zones
• Infrared radiation does not cause air movement and the dust in it
• Increase in thermal comfort in relation to air temperature
• Large space savings through ceiling or wall mounting
• Easy to install and simple to operate
• High durability - system components are not exposed to corrosion
• Minimum thermal inertia
• No concern that an interruption in heating could cause the heating medium to freeze
• Possibility to run on different fuels: natural gas, liquid gas

Direct body heating demonstrates much greater operating economy than other heating systems. The reduction in air temperature, the reduction or elimination of the temperature gradient and the thermal inertia are very important parameters for reducing the operating costs of the heating system.

INFRA infrared heaters - construction

The INFRA infrared heater is a hermetic, exchangeable space heater. It is designed and manufactured by Systema Polska Sp. z o.o.. It is constructed from the following components:

• Injector burner for combustion of all types of gas with nominal output j18/28/45kW. The hermeticity of the system is ensured by the sealed burner housing and combustion chamber. The burner has an electronic ignition system and ionisation flame control. In addition, the burner includes a double, electro-valve gas valve with integrated gas pressure stabiliser and soft-start device. The solenoid valve cooperates with a pressure switch to control the tightness of the system.
• Radiating tube in which the gas combustion process takes place, is shaped like a U or I (mono version). The resulting flame and the products of combustion moving towards the fan heat the surface of the pipe to a temperature that allows optimum heat radiation. The surface of the tube is coated with a special high-temperature silicone varnish. The combustion chamber of the radiant tube is made of special acid-resistant steel.
• Exhaust ventilator with electric motor. The fan motor has IP 44. The impeller is covered with epoxy enamel resistant to high temperatures and any condensation that may form.
• Radiator screen has the task of reflecting the upper part of the radiation and determines the field of action of the device. It is made of stainless steel, polished AISI 430. The screens have a very good reflectivity due to the steel used in this grade.
• Pipe supports are designed to limit the migration of hot air enclosed within the screen. They are made of steel and coated with silicone heat-resistant lacquer.

Special versions of INFRA infrared heaters

Infra RBT version with additionally insulated screen. A second screen made of galvanised steel is placed on top of the insulation layer. RBT is used for heating buildings without thermal insulation on the roof, for heating buildings with greater heights and for increasing the radiation efficiency.

MAXI brackets and screens used for mounting radiant heaters on the wall and at very high heights. The extended wall of the screen narrows the incidence of infrared rays and thus increases the radiation intensity per unit area.