Gas modular boilers do not suffer from low annual thermal efficiency, load rate, or comprehensive annual energy utilization. This is because, considering the inherent characteristics of modular boilers, they can achieve multi-unit coordinated control under the controller's networking mode. Based on preset parameters such as heating temperature curves, indoor temperature, and the thermal inertia of buildings, the system intelligently and automatically determines the number of boilers to start or shut down by referencing the outdoor temperature, achieving a near-unattended operation mode. During the control process, the system ensures that each operating boiler maintains full load and high efficiency (above 91%). This essentially eliminates the widespread issues of low thermal efficiency, load rate, and comprehensive annual energy utilization commonly found in domestic applications, offering significant economic and social benefits. Compared to traditional single-unit gas boilers, Shaanxi Deli modular gas boilers have the following characteristics: - **High Autonomy**: The heating effect of gas modular boilers is set according to the actual needs of users, offering strong autonomy. The system can also provide domestic hot water year-round. - **Long Service Life**: The furnace sections are made of high-quality cast iron with a design service life of 50 years, ensuring users can purchase with confidence and use with peace of mind. - **Backup Boiler Functionality**: The system is not affected by the failure of a single boiler, as other boilers continue to operate normally. - **Low Maintenance Rate**: The maintenance rate of modular gas boilers is significantly lower than that of oil-fired, coal-fired, or single-unit gas boilers. **Features of Van Deli Gas Modular Boilers**: 1. **Modular Design**: Simple structure, flexible installation, and convenience. The modular concept of gas modular boilers is equivalent to splitting a single large boiler into several smaller units. Thus, modular boilers can achieve the scale of any steam tonnage through "simple parallel combination," making them suitable replacements for various heating and hot water boilers below 10 steam tons commonly used today. 2. **Low Noise Operation**: In large boilers, the air-gas mixture is delivered into the furnace by a blower, which generates significant noise, causing sound pollution and worsening the working environment for employees. In contrast, modular boilers utilize atmospheric combustion, eliminating the need for a blower. As a result, they operate with very low noise, producing only a slight "whooshing" sound during combustion without other noises. 3. **High Combustion Efficiency**: Most modular boilers use burners made of special aluminized steel materials, designed with aerodynamic processes to ensure efficient gas combustion. Tests have proven a combustion efficiency of over 98%. Complete combustion reduces the nitrogen oxide content in the combustion byproduct—flue gas—minimizing environmental pollution.