As electric heating practitioners, we often face challenges from all aspects in promoting engineering projects. It is no doubt unscientific to consider the advantages and disadvantages of the heating system from a single dimension. We think that we should make a comprehensive analysis from the aspects of initial installation cost, operation cost, maintenance difficulty, safety, intelligent level, etc. when selecting heating schemes. Next, let's see the advantages of electric heating in these aspects:

1. Initial installation cost

From the perspective of indoor heat dissipation end, water heating (heat sink or ground heating pipe) seems to be cheap. However, we should consider the input of heat source, primary pipe network, secondary pipe network, booster station, heat exchange station, etc., plus the land cost and labor cost of equipment room, which together constitute the comprehensive cost; Electric heating materials (equipment) and control system constitute the whole of electric heating. Using the existing power grid, there is no need to increase capacity, and the comprehensive cost has significant advantages

2. Operation cost

From the general analysis, the cost of coal-fired central heating should be low. However, the waste of traditional central heating is serious, and the government still needs financial subsidies, which is actually not economical. In addition, the country gradually restricts coal-fired heating, and the cost will increase significantly after changing to gas heating; Electric heating can realize room division, time division and personalized temperature setting, which has a huge space for energy conservation. With the increase of power supply from shortage to sufficiency to surplus, the improvement of building energy efficiency standards, the increase of environmental protection pressure, the tilt of national policies and other factors, the operating cost of electric heating will become more and more advantageous.

3. Maintenance difficulty

Considering whether a heating system is good or not, one aspect we often ignore is its maintenance cost in the later period. Traditional water heating and heat source equipment will be replaced on a large scale in a certain period of time (for example, Beijing heat supply network has been replaced on a large scale for 15 years). There are hidden dangers of leakage and leakage, and there will be cleaning costs for the pipeline; Electric heating materials (heating cables) have the same life span as the building, and there is no maintenance cost. The cost of control system maintenance is almost negligible.

4. Safety, ease of control and intelligence level

The safety of heating system is undoubtedly an important consideration index. The safety of traditional coal-fired heating is guaranteed. However, gas heating has certain potential safety hazards, and safety accidents occur everywhere every year. In addition, the water heating system has no advantages in terms of control difficulty, temperature control accuracy and intelligent level; In comparison, electric heating is a safe way of heating. Air switch and leakage protector make heating free from electric shock. The heating materials in the concrete pouring layer have no oxygen, no combustion conditions and no risk of fire; The perfect shielding system, coupled with the shielding of the cement layer, has no radiation interference. Low temperature radiation heating, no scald. The centralized control system on the PC side and mobile phone APP software can realize automatic operation, reduce labor costs and enhance temperature control accuracy. Remote operation increases the flexibility of control.