The main cleaning methods for household hot water boilers include the following:
1. Mechanical Descaling
Introduction: Suitable for small cast iron hot water boilers, especially when there is loose scale and slag inside the boiler.
Steps:After shutting down the boiler, cool it, drain the boiler water, rinse with clean water, and then use a flat chisel, wire brush, or motorized milling machine for physical descaling.
2. Acid Cleaning
Introduction:Using an acid solution composed of hydrochloric acid or nitric acid and a corrosion inhibitor, this method effectively removes scale from the boiler while minimizing corrosion.
Steps:Prepare the acid solution, inject it into the boiler, and clean according to the specified cleaning time and temperature. After cleaning, rinse thoroughly with clean water.
3. Alkaline Descaling
Introduction:Although the descaling effect is less than that of acid cleaning, it is simple to operate, has fewer side effects, and is suitable for pre-treatment of scale that is difficult to remove with hydrochloric acid.
Steps: Prepare the alkaline boiling solution, inject the alkaline boiling solution into the boiler, heat it to the specified temperature and maintain it for a period of time to loosen the scale, and then rinse it.
