1, electric heater
Electric heaters are generally installed in users' rooms and belong to distributed electric heating. The main forms are electric microcrystalline glass radiant heater, electric quartz tube heater, oil-filled radiator, PTC ceramic electric heater, convection heater (heater) and other common electric heaters and phase change heat storage electric heaters with heat storage function.
2. Electric boiler
Electric boiler heating belongs to centralized electric heating, and the heat medium (hot water or steam) generated by it is transported to all rooms through the central heating pipeline, which is mostly used for heating a building or a residential and commercial district with dense buildings. There are two kinds of electric boilers: ordinary type and regenerative type.
3. Hot movies
Belonging to distributed electric heating. Electrothermal film is a kind of translucent polyester film, which can generate heat when electrified. It is formed by printing and hot pressing conductive special ink and metal current-carrying strip between two layers of insulating polyester film, and is equipped with an independent temperature control device. When working, its surface temperature is 40℃-60℃.
4. Phase change electric heating floor
Phase change electric heating floor (full name phase change heat storage electric heating floor) is a novel heating method, but it is still under study. It uses shape-setting phase change materials to convert cheap electric energy consumed by electric heating film or cable at night into heat energy and store it for heating during the day. This can save the heating operation cost and realize the peak load regulation and valley filling of the power grid.
5. Heat pump
Heat pump is a device that uses a small amount of electric energy to transfer heat from a low-level heat source to a high-level heat source to meet the heating demand. According to the classification of low-level heat sources, heat pumps can be divided into air source heat pumps, water source heat pumps and ground source heat pumps.