20kw Double Circuit Gas Wall Mounted Gas Boiler with Cheap Price

20kw Double Circuit Gas Wall Mounted Gas Boiler with Cheap Price. High Thermal Efficiency: Achieves 92%+ thermal efficiency with A-level energy rating for eco-friendly heating. Smart IoT Control: Features mobile phone WIFI remote control and one-click gas consumption monitoring. Adaptive Technology: Adapts to gas pressure (300-3000pa), voltage fluctuations, and water flow automatically. Low Noise Design: Built-in fluid mechanics silencer ensures silent operation without sleep disturbance. Space Saving Design: Wall-mounted combi boiler eliminates need for water storage tank, saving space. Durable Construction: Uses oxygen-free copper heat exchanger and undergoes accelerated durability testing. Versatile Gas Compatibility: Compatible with both Natural Gas (NG) and Liquefied Petroleum Gas (LPG). Advanced Safety Features: Includes rainwater collector to protect core components and drawer-type air filter.