In today’s industrial market, enterprises face constant pressure to balance performance with operating costs. One of the most important energy-related investments many manufacturers make is the purchase of an oil-fired boiler. From food and beverage processing to textiles, pharmaceuticals, printing, and light industry, oil boilers provide reliable steam or hot water to keep production running smoothly. However, when buyers start evaluating options, one of their first concerns is the price of oil boiler.

Market prices for oil boilers vary widely depending on boiler type, capacity, fuel efficiency, and after-sales support. Small-capacity boilers designed for low-pressure applications may start at a lower cost, while large-capacity or high-automation boilers for heavy industry can be significantly more expensive. Additional features such as low-NOx burners, economizers, and PLC-based automation also influence the overall price of oil boiler. This complexity often leaves buyers searching for manufacturers who can not only provide competitive pricing but also guarantee efficiency, reliability, and lifetime value.

Among leading suppliers, ZOZEN Boiler has earned an international reputation for delivering oil-fired boiler solutions that combine cutting-edge technology with long-term cost-effectiveness. As one of the most trusted names in the industry, ZOZEN provides high-quality equipment at a fair investment, ensuring that customers achieve the best balance between initial price of oil boiler and long-term operating savings.

ZOZEN 3 ton WNS oil fired boiler

ZOZEN WNS Series Oil and Gas Boiler: Technical Strength and Value

The flagship product in ZOZEN’s oil-fired boiler portfolio is the WNS series oil and gas steam boiler. This horizontal, fire-tube, shell-type boiler has become a preferred choice for a wide range of industries, from food manufacturing to electronics, due to its performance stability, safety, and energy efficiency.

Capacity range: 1 – 20 t/h

Rated working pressure: 0.7 – 2.5 MPa

Thermal efficiency: up to 98% with economizer/condensing configuration

Fuel adaptability: light diesel, heavy oil, natural gas, liquefied petroleum gas

Design standard: Manufactured under ASME (USA) and GB (China) standards

The WNS series adopts a three-pass wet-back design. The corrugated furnace structure provides a large combustion chamber, ensures sufficient fuel mixing, reduces incomplete combustion, and minimizes NOx formation. This design enhances thermal efficiency and extends the boiler’s lifespan.Equipped with economizers and condensers, the WNS boiler recovers waste heat from flue gas. This allows feedwater preheating, lowering fuel consumption, and improving overall efficiency up to 98%, which directly reduces the lifecycle price of oil boiler.The PLC-based control system provides full automation of ignition, fuel supply, water feed, and safety protection. Operators benefit from user-friendly interfaces and real-time monitoring, ensuring stable performance with minimal human intervention.With imported low-NOx burners, the WNS boiler meets stringent international environmental standards. Nitrogen oxide emissions remain below regulatory limits, which is critical for industries under increasing environmental scrutiny.Each WNS boiler undergoes rigorous non-destructive testing, hydrostatic pressure testing, and inspection by certified authorities. Boilers are also ASME certified and registered with the National Board in the USA, ensuring compliance with international safety standards.

The price of oil boiler is influenced by several key factors, including:

Capacity and Pressure Level: Larger capacity and higher-pressure boilers require thicker steel plates, more complex manufacturing, and additional safety components.

Fuel Type and Burner Technology: Boilers equipped with advanced low-NOx burners and capable of handling multiple fuels typically come at a higher upfront cost.

Heat Recovery Equipment: Economizers, condensers, and other energy-saving accessories increase initial investment but significantly lower operating costs over time.

Automation Level: Fully automatic control systems improve safety and efficiency, but they add to the purchase cost.

After-Sales Service: Comprehensive warranties, spare parts availability, and technical support also factor into the long-term value beyond the initial price of oil boiler.

ZOZEN ensures that every customer gets not only competitive equipment pricing but also a solution optimized for fuel efficiency and durability, which makes the investment more cost-effective in the long run.

Case Study: 3-Ton WNS Oil-Fired Steam Boiler for Delic Machinery

Hong Kong Deli Machinery Equipment Co., Ltd. is a professional laundry equipment company equipped with modern production equipment and scientific management philosophies. The company primarily provides professional laundry services for bedding, curtains, and other items for major hotels.

The company ordered several WNS series 3-ton light diesel steam boilers from ZOZEN Boiler to meet growing business needs. Hotel laundry requires large quantities of steam for disinfection, drying, and other processes. Steam also removes wrinkles and odors from fabrics, resulting in a fluffy and stretched effect after washing.

ZOZEN Boiler learned early in the project that the boiler would have to be hoisted through a window on site. The window height limit was 2.3 meters, while the standard height of ZOZEN Boiler’s 3-ton light diesel steam boiler is 2.4 meters. ZOZEN Boiler’s designers rationally adjusted the boiler’s height to 2.2 meters, appropriately lengthening the boiler body to address the customer’s installation difficulties.

ZOZEN Boiler also provides professional boiler commissioning services before shipment. The customer ordered several 3-ton light diesel steam boilers, each with a custom design and modified dimensions. Before shipment, ZOZEN Boiler technicians commissioned the boilers to ensure steam output met customer requirements and all other aspects of the boiler performed satisfactorily.

Since commissioning, the WNS boilers have significantly improved energy efficiency and reduced operating costs. For Delike Machinery, this project demonstrates that the true value of oil-fired boilers lies not only in their initial price but also in their ongoing performance, energy savings, and regulatory compliance.

Conclusion: Choosing ZOZEN for Long-Term Value

When enterprises compare the price of oil boiler in the market, it is essential to evaluate more than just the upfront purchase cost. A high-quality boiler reduces fuel consumption, minimizes downtime, and extends service life, delivering far greater value over time than a low-cost alternative with frequent maintenance issues.

ZOZEN Boiler, with its advanced WNS series and comprehensive service system, ensures that customers receive equipment designed for efficiency, safety, and sustainability. Backed by ASME certification, intelligent automation, and high-efficiency heat recovery systems, ZOZEN boilers represent a long-term investment in stable production.

Equally important, ZOZEN provides comprehensive after-sales support, including installation guidance, operator training, spare parts supply, and lifecycle maintenance. This ensures that customers not only purchase advanced equipment but also enjoy uninterrupted performance for years to come.

For enterprises evaluating the price of oil boiler and searching for a reliable partner, ZOZEN Boiler delivers both competitive investment and unmatched operational value—making it the smart choice for sustainable industrial growth.