Vandelli Gas Modular Boiler Silent Operation: Inaudible 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 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: ◆ Start units as needed to eliminate energy waste common in large single boilers. ◆ If one module fails, others continue operating, ensuring uninterrupted boiler operation. Intelligent Protection for Safety and Reliability: ◆ Dry Burn Protection: Built-in dry burn (low water level) protection device ensures safe and reliable operation. ◆ Flameout Protection: Equipped with flame detection probes for flameout protection, enhancing operational safety. ◆ Gas Supply Interruption Protection: System automatically locks when gas supply is cut off or gas pressure is too low/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 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 minimal electricity consumption. Vandelli Gas Modular Boiler – Precision Control System: ◆ Honeywell electromagnetic automatic control system (U.S.) enables fully automated boiler operation. ◆ Exclusive smart room temperature control technology for villas allows users to set room temperature to control combustion time for added convenience and comfort. ◆ Microcomputer-controlled digital display shows functions such as timing, temperature control, remote control, and fault analysis. The cast iron gas modular atmospheric hot water boiler, developed by Shaanxi Deli Energy, holds national patent numbers 201320778345.0, 201310632249.X, 201320784596.X, 201320778344.6, and 201320784600.2. It is an innovative product with independent intellectual property rights leading international standards. Its core components feature a unique, self-developed high-quality cast iron movement mechanism with a lifespan of over 50 years, catering to diverse user needs. Multiple units can be combined in parallel, leveraging modular advantages to achieve staggered fully automated startup and輪流休息輪休, eliminating the need for dedicated personnel. With strong adaptability to gas sources, it can use natural gas, liquefied gas, coalbed methane, biogas, and other fuels, fully addressing gas source and type shortages in various regions. It can be integrated with central air conditioning, solar energy, and underground heat sources for complementary heating, widely applied in residential communities, shopping malls, villas, hotels, spas, schools, and hospitals for heating and domestic hot water supply. It is a multifunctional設備 device characterized by energy efficiency, high performance, silence, environmental friendliness, and zero pollution. Exhaust Heat Loss: The boiler reduces exhaust heat loss by 75% compared to traditional single boilers. Large single steel tube boilers typically maintain exhaust gas temperatures above 150°C to reduce low-temperature corrosion and condensation on the tail heating surface. In contrast, the modular boiler uses corrosion-resistant cast iron materials for its heating surface, providing strong corrosion resistance. Through optimized heat transfer design, the exhaust gas temperature is reduced to below 100°C (60°C–80°C). Thus, modular boilers reduce exhaust heat loss by 75% compared to traditional single boilers. Additionally, each modular boiler is equipped with a ventilation regulator. When a module is operating, its ventilation regulator opens, and when it is idle, the regulator closes, preventing residual heat loss in standby modules. Moreover, each modular boiler’s furnace wall is insulated to prevent heat loss from the furnace. Actual tests show that modular boilers save 1% in fuel costs compared to single boilers.