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What are the advantages of TGBOILER’s horizontal oil- and gas-fired atmospheric hot water boilers?

October 08, 2026
Horizontal oil- and gas-fired atmospheric hot water boilers refer to boiler equipment with a horizontal structure that burns fuels such as diesel, heavy fuel oil, natural gas, biogas, liquefied petroleum gas (LPG), and town gas. These boilers are designed to produce hot water and operate without working pressure, hence the terms “atmospheric hot water boiler” or “non-pressurized hot water boiler.”
The TGBOILER CWNS series of atmospheric oil/gas-fired hot water boilers, independently developed and manufactured by Henan Taiguo Boiler Manufacturing Co., Ltd., has earned high recognition from customers both domestically and internationally for its outstanding thermal efficiency, reliable safety performance, and low-nitrogen, environmentally friendly design.
                                                                                               Henan Taiguo Boiler Manufacturing Co., Ltd.
Advantages of the CWNS Series Horizontal Oil/Gas-Fired Atmospheric Hot Water Boilers:
1. Three-pass fire-tube design
Featuring a horizontal, three-pass fire-tube wet-back boiler design, its corrugated furnace tube and three-pass configuration increase the boiler’s heat transfer area, further enhancing thermal efficiency.
2. Non-pressurized
Horizontal oil/gas-fired atmospheric hot water boilers operate without working pressure; the top of the boiler is connected to the atmosphere, meaning it operates under atmospheric conditions. Consequently, there is no risk of boiler explosion, ensuring a high level of safety.
3. Easy to Use
Since atmospheric hot water boilers operate without working pressure, they are not classified as pressure vessels. They can be put into operation after simple installation and commissioning, eliminating the need for cumbersome procedures.
4. Simple Operation
The auxiliary equipment of horizontal oil- and gas-fired atmospheric hot water boilers utilizes an intelligent operating system. Automatic operation can be achieved by setting programs via buttons on the intelligent control cabinet, ensuring simple control and eliminating the need for on-site personnel.
5. Multiple Safety Protections
The boiler is equipped with multiple safety protection devices, such as a low-water alarm system, a dry-burn protection system, a water level monitoring system, an automatic water-filling system, and an automatic power-off system, which further enhance the boiler’s safety.
6. High Thermal Efficiency
Horizontal oil- and gas-fired atmospheric hot water boilers feature high thermal efficiency, exceeding 92%. This improved efficiency not only shortens operating time but also reduces operating costs.
7. Clean and Environmentally Friendly
Horizontal oil- and gas-fired atmospheric hot water boilers offer the advantage of being clean and environmentally friendly. They use oil and gas—which are environmentally friendly fuels—as their fuel source, making them eco-friendly boiler products. The nitrogen oxide content in the boiler’s exhaust gases meets regulatory standards.