oil fired hot water boiler, the technicians of ZOZEN boiler deeply explain the principle
The primary purpose of the boiler is to supply energy to the facility's operations – for comfort heating, manufacturing process, laundry, kitchen, etc. The nature of the facility's operation will dictate whether a steam or hot water boiler should be used. Hot water is commonly used in heating applications. Under these conditions, there is a wide range of ZOZEN hot water boiler products available.

oil fired hot water boiler, ZOZEN WNS series gas-fired (oil-fired) boilers are wetback fire-tube boilers with a two-pass or three-pass design. It uses threaded smoke tube for heat transfer and manages to achieve a thermal efficiency up to 98%. The economizer is installed at the tail of boiler, giving the boiler a compact size. Meanwhile, sound automatic control system enables unattended operation.
PT.Sari Incofood Corporation is a leading manufacturer of instant coffee drink in Indonesia. The company was eager to upgrade renew backward equipment. Among them, the steam boiler provides heating support for the production process of coffee pulping, liquid coffee concentrating and coffee freeze drying. To meet the requirements of the actual production line, ZOZEN recommended the SZL series water tube boiler for the company. The boiler has been stably running up to now, so the company spoke highly of ZOZEN products and technology.
ZOZEN SZS series boiler body is designed with D-type chamber combustion structure. The furnace is on right side and the convection heating surface is on left side. The membrane type structure is adopted for the circumference of the furnace body, the wall between the furnace and the convection zone, the front and rear walls of boilers body. The furnace pressure is designed to be greater than 6000Pa.
ZOZEN is the first in China to adopt arched tube sheet and threaded smoke tube structure. Threaded smoke pipe is a high-efficiency heat transfer element researched by ZOZEN for many years. After continuous optimization, its heat transfer coefficient is 1.8 times higher than that of ordinary smoke pipe, which increases heat conduction.
ZOZEN Boiler provides temporary and permanent solutions with our profession for industrial boilers to meet the most stringent emissions requirements. If you need more information, please contact us today.
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28 Apr 2026ZOZEN Boiler to Exhibit at PALMEX JAKARTA 2026
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21 Apr 2026Bangladesh’s Textile Industry Continues to Grow, with Greater Focus on Fuel Adaptability and Operating Costs in Steam Boiler Configuration
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14 Apr 2026ZOZEN Reciprocating Grate Biomass Steam Boilers Support Textile Projects in Pakistan
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From May 6 to 7, 2026, ZOZEN Boiler will participate in Palmex Indonesia 2026 at Jakarta International Expo (JIEXPO), Indonesia. ZOZEN Boiler will welcome visitors at Booth 190 & 192. As an industry event focused on the palm oil sector in Southeast Asia, the exhibition brings together companies involved in palm oil processing, supporting energy systems, and industrial equipment, offering ZOZEN Boiler a valuable opportunity to meet customers from Indonesia and surrounding markets. ZOZEN Bo...28 Apr 2026 -
Bangladesh is one of the world’s major producers and exporters of garments and textiles. With a well-developed industrial chain covering textile, dyeing, printing, and garment manufacturing, long-term demand for industrial steam remains strong. In production processes such as dyeing, washing, drying, and finishing, steam boilers play an important role in ensuring stable heat supply. As local textile enterprises place greater emphasis on energy consumption control, fuel utilization, and ope...21 Apr 2026 -
In Pakistan, garment manufacturing and fabric processing remain important parts of industrial production. For these factories, steam is not an auxiliary utility but a core part of the production chain. Processes such as dyeing, drying, heat setting, and finishing all require a stable and continuous steam supply. Any fluctuation in steam output may affect production rhythm. Against this background, more textile companies in Pakistan are paying closer attention to fuel adaptability, operating sta...14 Apr 2026
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WhatsApp: +86 18861589035
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