Regarding wall-hung boilers, I believe everyone knows that they are very important in winter, and they can produce hot water using natural gas. However, when using a gas wall-hung boiler, it should be noted that if not properly selected, the heating effect will be poor later. What is the working principle of a gas wall-hung boiler? Let's explain it below. Working principle of gas wall-hung boiler: When the ignition switch of the gas wall-hung boiler is in the working state, the fan starts, forming a negative pressure difference in the combustion chamber. The pressure switch sends instructions to the water pump. When the water pump starts, the water flow switch sends instructions to the high-voltage igniter and the gas proportional valve, and the gas proportional valve starts. Due to the negative pressure in the combustion chamber, the natural gas will not accumulate and burn, nor will it cause detonation, achieving quiet ignition and ultra-silence, avoiding dangerous accidents. This standard can identify the stability of the boiler. The gas proportional valve, pressure switch, and exhaust guide switch are interlocked. Only when the combustion chamber has a certain negative pressure can the gas proportional valve work. If the exhaust guide switch does not detect exhaust emission within 5 seconds, it will cut off the gas proportional valve and stop gas supply to ensure safe use of gas. Santlets, as a traditional German heating technology brand, is our main brand and industry...