zozen boiler
Home Service FAQs FAQ of gas-fired(oil-fired) boilers How to maintain the gas boiler that has been shut down?

How to maintain the gas boiler that has been shut down?

26 Feb 2021

At present, the research and development technology of gas boilers is very mature. The boiler has obvious advantages of stable operation and less pollutant discharge and energy saving. However, if the boiler is not used for a long time, it is necessary to maintain the boiler to maintain the normal operation at the subsequent startup.

1.Dry maintenance

The gas-fired boiler needs to be drained after the furnace is shut down, then the internal dirt is completely removed and rinsed, and the drying in the furnace is kept so as not to be eroded.

You can use a small fire when drying the remaining water in the furnace, but you should not use a large fire. Also be careful to close all the hand hole pipe valves and place the quicklime pan in the drum.

If you have not used a gas steam boiler for a long time, check the boiler at least three months. If the quicklime in the crucible is broken into powder, it is necessary to replace the new lime in time to ensure that the dryness protection in the gas steam boiler is not corroded by moisture.

2.Wet maintenance

The specific operation procedure of the wet maintenance is: after the water in the furnace is discharged, the internal dirt is removed, and the treated water is filled into the crucible and then heated to the required temperature; then the gas in the water is completely discharged to the furnace. In addition, close all valves.

However, it should be noted that when the weather is very cold, wet maintenance should not be used to prevent the furnace water from freezing and damaging the furnace and cannot be used.

Related news View More
  • ZOZEN Boiler’s Customized Solution Empowers Bestway’s Vietnam Plant for Efficient Growth
    In the global leisure and entertainment product manufacturing sector, Bestway Group is undoubtedly a leading player. With operations spanning over 200 countries and regions, its product portfolio covers around 800 items across leisure, sports, and camping categories. As the company continues to expand its industrial footprint, the Bestway plant in Tien Giang Province, Vietnam, faced an urgent need for a reliable and efficient heat energy supply to support production. ZOZEN Provides a Tailored...
    19 Aug 2025
  • ZOZEN Gas-Fired Boilers Help Mongolia MCS Coca-Cola Reach New Heights
    In 1886, Atlanta pharmacist John Pemberton mixed the first glass of Coca-Cola. What began as a “brown tonic” selling 25 bottles a day has since become a global beverage legend, spanning more than 200 countries with 2 billion servings consumed daily. In Mongolia, its exclusively authorized producer MCS Coca-Cola is expanding into new categories such as iced tea and juices. Powering this strategy is the thermal engine behind the scenes: three 8 t/h WNS series gas-fired steam boilers fr...
    12 Aug 2025
  • ZOZEN Boiler Empowers Green and High-Quality Industrial Development in Liaoning
    In recent years, green manufacturing and high-quality development have become the main themes of China’s industrial transformation and upgrading. As a leading domestic supplier of high-efficiency and clean boilers, ZOZEN Boiler, backed by profound technical expertise and extensive industry experience, has been repeatedly selected for key projects across Liaoning Province, continuously injecting robust momentum and green energy into local industries. ZOZEN’s Boiler Solutions Serve ...
    05 Aug 2025

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity