CWNS horizontal boiler pressure hot water boiler for three return all wet back structure, using a large furnace, opium pipe design, increasing the furnace radiant heat absorption and effective energy saving. Using threaded pipe and spiral spoiler son, greatly enhanced heat transfer, heat transfer coefficient than the traditional tube twice due to high thermal efficiency. Interior design advanced and reasonable, to ensure good water circulation, water resistance. Liner made of special material handling, namely the protection of guts, but also ensures that the water clean and sanitary. Optional European brand burner, combustion, safety, energy-saving, environmental protection effect. High degree of automation of the boiler operation, configuration, full Chinese LCD, HMI, intelligent control. Has a program starts automatically purge electronic automatic ignition, automatic combustion, wind oil (gas) automatic ratio adjustment and flameout protection device, operation is simple. Boiler by a programmable control and control system composed of a touch screen. Designed for industrial environment applications. Safe and reliable operation, so that the boiler has reached a high level of automation, simple and intuitive operation, as long as the touch screen function keys on each step can be completed according to the operation. Built Rs485 interface with communication and remote monitoring capabilities. Under no pressure boiler operation, and a number of water overheating protection device, eliminating the user's worries fundamentally safe and reliable. Smart automatic adjustment of heating water and bathing water temperature, temperature unit regularly scheduled run, enabling unattended operation more simple, fast