Vandele Gas Modular Boiler Silent Operation: No audible sound during normal operation, with an electricity consumption of 0.001 kWh per hour. Energy-Efficient and High Performance: Equipped with finned tube heat exchangers, the system automatically adjusts the output of each modular boiler based on indoor and outdoor temperature changes over time, ensuring a consistent balance between heat demand and supply. Compared to large single-unit boilers, it saves approximately 25% in energy consumption. Easy Installation: Compact size, lightweight, minimal space requirement, and convenient transportation, installation, and maintenance. Gas Modular Boiler – Staggered Startup with Mutual Backup: ◆ Startup in stages as needed, eliminating energy waste common in large single-unit boilers. ◆ If one module fails, others continue operating, ensuring uninterrupted boiler operation. Intelligent Protection for Safety and Reliability: ◆ Dry-Fire Protection: Built-in dry-fire (low water level) protection device ensures safe and reliable boiler operation. ◆ Flame-Out Protection: Equipped with flame detection probes for flame-out protection, enhancing operational safety. ◆ Gas Supply Interruption Protection: System automatically locks when gas supply is cut off or gas pressure is too low or too high. ◆ Power Failure Protection: Gas valve automatically closes during a power outage and restarts when power is restored. ◆ Temperature Protection: Dual systems for normal temperature control and high-limit safety control; system locks if boiler outlet water temperature is too high. Low Pressure and Low Voltage Operation: ◆ Can be directly connected to residential low-pressure gas networks, with strong adaptability to gas sources. ◆ Operates on 40W/24V power supply, ensuring safety and energy efficiency with minimal electricity consumption. Vandele Gas Modular Boiler – Precision Control System: ◆ Honeywell electromagnetic automatic control system (USA) enables fully automated boiler operation. ◆ Exclusive smart room temperature control technology for villas, allowing users to set room temperature to control combustion time for greater convenience and comfort. ◆ Microcomputer-controlled digital display showing functions such as timing, temperature control, remote control, and fault analysis. Shaanxi Deli Energy Technology Co., Ltd. Vandele Boiler Factory has developed a new environmentally friendly and energy-efficient gas modular boiler, including atmospheric direct-fired steel modular boilers, condensing gas modular boilers, and gas cast iron modular boilers. Production began in 2014, and by 2015, the boilers were widely used across various regions in Shaanxi, with sales extending as far as Xinjiang. Shaanxi Deli Energy Technology Co., Ltd. Vandele Boiler Factory boasts independent R&D across the entire industry chain, direct sales from the manufacturer, government-recommended products, branded products, complete environmental approval procedures, self-purchased land, self-built factories, and 30 years of manufacturing experience. The modular design of Vandele gas boilers determines the following characteristics: ① Each boiler serves as a backup for others, significantly improving equipment and investment utilization as well as operational safety. If one module unexpectedly fails, the impact on heating is minimal, only 1/N (where N is the number of boilers). ② Excellent capacity expansion capability. As heating and domestic hot water loads in residential areas change (increase or decrease), the number of boilers can be easily adjusted to meet heating needs with minimal investment, unlike large single-unit boilers whose capacity is difficult to modify.