Hot water boilers are mostly used for heating and heating in winter. If a failure occurs during the heating process, the user's hot water will be insufficient and the ambient temperature will be too low, which will affect normal life. Zhengzhou Fangkuai Boiler Factory summarized some common failure causes and solutions of hot water boilers to help everyone run the boiler better.
At present, most of the hot water boilers on the market adopt the structure of membrane water wall. What are the advantages of this design?
1. Since the membrane water wall of the hot water boiler has good sealing performance and better heat preservation effect, it improves the thermal efficiency of boiler operation, thereby providing more heat for production and life per unit time.
2. Because it surrounds the furnace and has good airtightness, part of the furnace wall can be saved with refractory materials, which simplifies the furnace wall structure to a certain extent and reduces the total weight of the boiler.
Many users have reported that the hot water boiler has a low water level during the operation. Zhengzhou Fangkuai Boiler Factory analyzed that it may be due to the water level sensor, the main controller, etc., or the heating system has water shortage. The specific situation needs to be finalized through detailed investigation and then resolved.
If it is a water shortage, replenish water in time after confirmation. If it is said that the water level sensor, controller, etc. have poor contact, then they should be replaced after confirmation. Of course, there will be other reasons. These should be based on the specific situation and take reasonable measures.






We, Zhengzhou Fangkuai Boiler Co., Ltd. (Fangkuai), are excited to announce our participation in the Indonesia International Heating Technology Exhibition 2025. We will be showcasing our advanced boiler systems engineered for higher efficiency, lower emissions, and sustainable energy performance. Join us at Booth No. B1-08 from November 5–7, 2025 at the Jakarta Convention Center.
The event brings together EXPO BOILER, EXPO BIOMASS, EXPO PUMPS & VALVES, and EXPO CRANE — creating a comprehensive platform for technology exchange and business collaboration across the industrial heating and energy sectors in Southeast Asia.
At the exhibition, we will present our integrated solutions including biomass boilers, industrial steam systems, and full power plant EPC services. Our products emphasize:
Event Details
Date: November 5–7, 2025
Venue: Jakarta Convention Center, Indonesia
Booth: B1-08
We welcome industry partners, plant owners, EPC clients, and technology scouts to visit our booth and explore collaboration opportunities. Whether you are planning a biomass retrofit, a new power plant EPC project, or seeking high-efficiency boiler equipment, our engineers will be available for technical discussions and project consultations.
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