Solar hot water heaters need to be cleaned once every two to three years.
External cleaning: The solar hot water heater needs to wipe the surface dust according to the dirt. Keeping it clean can maintain high heat collection efficiency.
For internal cleaning: open the water inlet of the solar hot water heater, pour the white vinegar into the water storage tank, and let the water heater automatically circulate for 20 ~ 30min, then open the drain, discharge the white vinegar that has been washed with scale, fill the water tank with water, and drain it after circulation.
