From the names of atmospheric hot water boilers and non-pressure hot water boilers, we can distinguish that the former does not carry pressure and the latter carries pressure. This is a simple and intuitive difference. But in fact, there are many differences between the two types of boilers, and the applicable industry fields and operating locations are also different. Everyone should choose the appropriate boiler model according to their own needs for the hot water boiler, so that the boiler can work better for us. Xie Gong from Zhengzhou Fangkuai Boiler Factory introduced these two types of boilers to help everyone understand them more comprehensively.
In my country, atmospheric hot water boiler is also called pressureless hot water boiler, which means that the top of the boiler usually does not bear the static pressure of the water column of the heating system, which is equivalent to an "open hot water tank".
The meaning of atmospheric hot water boiler is that the opening of the boiler body communicates with the atmosphere. Under any working conditions, the boiler whose gauge pressure is zero at the boiler water level line; the boiler product model of atmospheric boiler is composed of three parts, and each part is connected by a short horizontal line.
Pressurized hot water boilers are the closed boilers we usually see. The steam and water system in the boiler is composed of closed containers and pipes, heated by flames, and subjected to fluid pressure during work, and belongs to special equipment.
The standard steam of the boiler refers to controlling the pressure and flow rate of the boiler in strict accordance with the process indicators. Steam includes saturated steam and superheated steam, which are divided into low pressure, medium pressure and high pressure steam.
We, Zhengzhou Fangkuai Boiler Co., Ltd. (Fangkuai), are excited to announce our participation in the Indonesia International Heating Technology Exhibition 2025. We will be showcasing our advanced boiler systems engineered for higher efficiency, lower emissions, and sustainable energy performance. Join us at Booth No. B1-08 from November 5–7, 2025 at the Jakarta Convention Center.
The event brings together EXPO BOILER, EXPO BIOMASS, EXPO PUMPS & VALVES, and EXPO CRANE — creating a comprehensive platform for technology exchange and business collaboration across the industrial heating and energy sectors in Southeast Asia.
At the exhibition, we will present our integrated solutions including biomass boilers, industrial steam systems, and full power plant EPC services. Our products emphasize:
Event Details
Date: November 5–7, 2025
Venue: Jakarta Convention Center, Indonesia
Booth: B1-08
We welcome industry partners, plant owners, EPC clients, and technology scouts to visit our booth and explore collaboration opportunities. Whether you are planning a biomass retrofit, a new power plant EPC project, or seeking high-efficiency boiler equipment, our engineers will be available for technical discussions and project consultations.
Visit our booth / Contact us












Wins Another Invention Patent
Brilliant Glory, Continuing to Write a Brilliant Chapter
Striving for "Innovation" and "Quality"
Focusing on Cutting-Edge Technologies
Creating New Momentum and New Advantages
Promoting the Continuous "Innovation" of New-Quality Productivity
On June 17th, our company was awarded another national invention patent. To date, the company has secured 162 national patents and 13 invention patents, and has been deeply involved in the formulation of eight national and industry standards. We continue to lead industry development with technological breakthroughs.

Overcoming challenges and achieving remarkable results
Attaching great importance to technological innovation
While pursuing superior quality, Fangkuai also attaches great importance to technological innovation.
Developing product diversity
To better meet the diverse needs of consumers, Fangkuai develops diverse product images during R&D and production.
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Gloriously writing a new journey
The company has always adhered to the philosophy of
"Building Character, Creating Quality Products"
Using technological R&D as the core driving force
Also promoting application
Effectively promoting technological advancement in the industry and engineering products
Future

Continued
Scientific and technological R&D and technological achievement transformation
Generate more core independent intellectual property rights
Solidly promote the company's high-quality development