Is the water released by heating corrosive? How can we make the heating hot and urgent? !

The water in the heater is usually non-corrosive. Pour it directly on your face and wash it with water. Don't be afraid. The heating is not hot for several reasons: 1. Maybe the heating is still in the debugging stage, and it will be fine after a while. 2. sundries may be deposited in the radiator in the old year, resulting in poor circulation. 3. It may be that the pipeline is blocked, or the air resistance is caused by poor exhaust, so it is wrong to find a professional to repair it. 4. The valve is not fully opened, but it will be fine if you open it yourself or find a property to open it.