Electric heating furnace is also called electric heating boiler. Electric heating boiler belongs to a kind of boiler products. It is an engineering process that converts electricity into energy to heat the water in the boiler and produce steam or hot water. It is one of the mainstream combustion modes in boilers at present. It has many advantages, such as intelligent operation, high thermal efficiency, safety and reliability. The main heating of electric heating furnace is water heating, which is heated by heat source (that is, boiler). The main heating methods are household heating and central heating.

分户供暖所指的是用户自行采购安装小型供热设备进行供暖。分户供暖可随时开启，提供了采暖时间上的自由。分户供暖可实现每家每户温度可随意调，已适应不同体质人群的需要。另外每个家庭还可根据自己的实际情况，在装修过程中随意增加或减少暖气片片配置。而集中供暖是不允许这样操作的。

Household heating means that users purchase and install small heating equipment for heating. Household heating can be turned on at any time, providing freedom in heating time. Household heating can realize that the temperature of each household can be adjusted at will, which has adapted to the needs of people with different physique. In addition, each family can also increase or reduce the radiator configuration at will in the decoration process according to their own actual situation. Central heating is not allowed to operate like this.

集中供暖，指集中集团式供暖的一种形式。一般都是按一个采暖季度，每平方面积收费的。

Central heating refers to a form of central group heating. Generally, it is charged per square area according to a heating quarter.

电采暖加热电热元件的形式分别有电阻式、电极式和电膜式。

The forms of electric heating elements include resistance type, electrode type and electric film type.

1、电阻式是采用高阻抗管形电热元件，接通电源后，管型电热元件产生高热使水成为热水或蒸汽。管型电热元件由金属外壳，电热丝和氧化续三者组成。该种元件的优点是水中不带的电，使用较为安 全，对水质也不造成污染。但由于锅炉容量的增加需要，依靠管型电热元件的数量来实现，这种锅炉的容量收到电热元件结构布置的限制；；问题是锅炉容量的增加依靠管型电热元件的数量来实现，并按投运数量来调节锅炉负荷。因此，这种锅炉的容量收到电热元件结构布置的限制。

1. Resistance type adopts high impedance tubular electric heating element. After the power is connected, the tubular electric heating element generates high heat to turn water into hot water or steam. The tubular electric heating element is composed of a metal shell, an electric heating wire and an oxidation continuation. The utility model has the advantages of no electricity in the water, safe use and no pollution to the water quality. However, due to the increase of boiler capacity, it depends on the number of tubular electric heating elements, and the capacity of this boiler is limited by the structural arrangement of electric heating elements;; The problem is that the increase of boiler capacity depends on the number of tubular electric heating elements, and the boiler load is adjusted according to the number of put into operation. Therefore, the capacity of this boiler is limited by the structural arrangement of electric heating elements.

2、电极式锅炉的工作原理是把电极插入水中。利用水的高热阻性，直接将电能转换为热能，在这一转换过程中能量几乎没有损失。电极式锅炉运行十分，一旦锅炉断水，电极间的通路被切断，电功率为零，锅炉自动停止运行，锅炉不会发生干烧现象。

2. The working principle of electrode boiler is to insert electrodes into water. Using the high thermal resistance of water, electric energy is directly converted into heat energy, and there is almost no loss of energy in this conversion process. The operation of the electrode boiler is very safe. Once the water supply of the boiler is cut off, the path between the electrodes is cut off, and the electric power is zero, the boiler will automatically stop running, and the boiler will not dry burn.