One HuaguangUnderfloor heating cableIntroduction to Low Temperature Radiant Heating System 

        The Huaguang low-temperature radiation heating system uses electricity as the energy source and heating cables as the heating element to convert all electrical energy into heat energy. The heat is then radiated into the room through the floor (or wall, ceiling) in the form of low-temperature heat radiation. Among the three heat transfer methods of conduction, convection, and radiation, people have a good perception of radiant heat. Therefore, the low-temperature radiation heating system with heating cables is recognized as one of the heating methods in the world's HVAC engineering community. This system has become another new way of building heating market due to its long lifespan, pollution-free, energy-saving, easy construction, ability to achieve room control, low investment cost, convenient management, hygiene and comfort advantages. 

2、 System Introduction 

1. Working principle and composition of low-temperature radiation heating system with heating cable 

1.1 Working principle 

        The working principle of the Huaguang heating cable low-temperature radiation heating system is that after the heating cable is powered on, the working temperature is 40 ℃~60 ℃. It uses the ground (or wall, top) as the heat dissipation surface to heat the surrounding air with a small amount of convective heat transfer. At the same time, most of the heat is transferred to the surrounding enclosure structure, objects, and human body in a radiative manner. After the enclosure structure, objects, and human body absorb the radiative heat, the surface temperature increases, thereby achieving the goal of raising and maintaining room temperature. The radiation heat transfer of Huaguang heating cable low-temperature radiation heating system accounts for more than 60% of the total heat transfer.

      The temperature is controlled by the room temperature controller through the ground temperature probe installed on the floor or the room temperature probe inside the temperature controller. When the indoor temperature reaches the set value, the temperature controller starts to operate, disconnecting the power supply of the heating cable, and the heating cable stops heating. When the indoor temperature is lower than the set value of the temperature controller, the temperature controller starts again, connecting the power supply of the heating cable, and the heating cable starts heating, and so on. 

1.2 System composition 

The Huaguang heating cable low-temperature radiation heating system installed in the room consists of the following equipment and materials: 

*Huaguang heating cable * temperature controller 

*Thermal insulation material * vacuum polyester aluminum plated film 

*Wire mesh (galvanized wire mesh) * fixing strap (binding strap) 

*Expansion joint * filling layer * other auxiliary materials 

2. The main advantages of the Huaguang heating cable low-temperature radiation heating system are:

·Realize green and environmentally friendly heating

·Save energy                                    

·Save water sources

·Save land  

·Fully utilize power resources 

·The construction and installation cost is lower than other heating systems 

·Shorten the construction period 

·High heating comfort 

·Low maintenance costs 

·Long safety lifespan 

·Solved the problem of difficult property fees 

·Easy to use and operate                                                       

·Low operating costs