1, the first with water filled: water heater at the time, must be filled with water, water heater to prevent forgotten Sheung Shui and air drying. Water heater in the first time or when the water tank refilling water in the morning or evening, Sheung Shui, because the vacuum glass tube air drying temperature a shock very easily burst up to 250 ° C, cold water.
2, check the venting
The role the ventilation tube to prevent poor circulation line, or to avoid the gas block is expansion the role of Schnorchels in Sheung Shui, not a bad water heater. If the water, but also to prevent that the water heater drained Überlaufrohr barrier.