Gas fireplace In the decades when the fireplace was born and entered the commodity era, various types of structural performance of the fireplace have emerged in the HVAC products market in China, including China. The types of these fireplaces are as follows: 1. According to the heating method, it can be divided into instant wall hanging furnace and volume wall hanging furnace; 2. According to the purpose, it can be divided into single function and heating bath dual-use type, of which heating and bathing dual-use type can be divided into casing type wall-hung boiler and plate-changing wall-hung boiler; 3. From the characteristics of the gas valve body, it can be divided into an open-type wall-hung boiler and a proportional wall-hung boiler; 4. From the characteristics of the combustion chamber pressure, it can be divided into positive pressure combustion type wall-hung boiler and negative pressure combustion type wall-hung boiler; 5. From the form of heat exchanger, it can be divided into internal combustion type wall-hung boiler and external combustion type wall-hung boiler; 6. From the characteristics of the circulation system, it can be divided into open wall hanging furnace and closed wall hanging furnace; 7. From the characteristics of whether or not the residual heat can be recovered, it can be divided into ordinary wall-hung boilers and condensing wall-hung boilers. Electric fireplace Electric wall-hung boiler is also called electric heating wall-hung boiler. It uses electric energy as energy to heat heating, air-conditioning or sanitary hot water through electric heating tube. The machine has fast heating, high thermal efficiency, small volume, no noise, modular heating and energy saving. A new generation of products that are easy to install and use, and integrate advanced technology from all over the world. Heating method (electric heating rod, quartz tube membrane, PTC liquid membrane, ceramic semiconductor, electromagnetic heating, etc.). The installation method is wall-mounted, so it is called electric wall-hung boiler. Wall-mounted boilers are classified according to different classification criteria: they are divided into: “hot†and “volumeâ€; they are divided into “single heatingâ€, “semi-automatic†and “automatic†(or: Single water channel and double waterway); from the combustion chamber pressure: "positive pressure combustion" and "negative pressure combustion"; from the gas valve body is divided into: "on-off and proportional". From the origin of production: "imported machine" and "assembly machine" and so on. It should be noted that some so-called "imported machines" are now actually assembled in China. Ultrathin Transparency Display Transparency Display Shenzhen Filmbase Technology Co., Ltd. , https://www.globalfilmbase.com