What does the rated output of gas-fired boiler mean?
gas-fired boiler uses natural gas, biogas, coke oven gas, etc. as fuel, it has high combustion efficiency, and its emissions are commonly used energy equipment in food, chemical, building materials, medicine and other industries. The rated output of gas-fired boiler is generally used to describe the heating capacity of boiler. Here, ZOZEN Boiler will take you to learn how to choose the rated output of gas-fired boiler.
Rated output of gas-fired boiler
The rated output of the gas boiler refers to the evaporation capacity that the boiler can achieve when the boiler has rated steam parameters, rated feed water temperature, and the correct fuel selection, and is one of the main parameters of the boiler under the premise that the design efficiency of the boiler can be guaranteed.
For steam boilers, the rated output of gas-fired boiler is also called rated evaporation, and the unit is ton/hour; for hot water boilers, it is called rated heat output, and the unit is MW (the old unit is 10,000 kcal/hour).
The rated output range of ZOZEN WNS series gas-fired boiler is 1-20t/h.
The gas-fired boiler is a wet-back internal combustion boiler, it is designed with a large-diameter corrugated furnace, which effectively increases the heat transfer area of the furnace, has the characteristics of full-automatic operation, and runs reliably and stably for a long time. In addition, the self-developed high-efficiency heat transfer element, the threaded smoke tube, effectively improves the thermal efficiency. The boiler has simple structure and small floor area.
The rated output range of SZS gas-fired boiler is 2-110 t/h.
The structure of the gas boiler is a D-type arrangement structure, the right side is the furnace, and the left side is the convection tube bundle. The boiler adopts a full-membrane water-cooled wall structure, which has good sealing performance and a large radiation heating area. Reasonable steam drum size and steam-water separator configuration can reduce steam with water and improve steam quality. Because it is a water tube boiler, the boiler has a strong pressure bearing capacity and a larger parameter range.
As a professional gas boiler supplier, ZOZEN Boiler provide WNS and SZS series gas boilers with a wide range of rated output, and are characterized by safety, reliability, high efficiency, energy saving and environmental protection, convenient maintenance, and automatic intelligent control. The thermal efficiency of condensing gas steam boilers is as high as 98%, and the low nitrogen emission of nitrogen oxides below 30mg/Nm³ can be achieved.
-
WNS series gas-fired (oil-fired) steam boilerLive Chat1-20 t/h0.7-2 MPa
-
SZS series gas-fired (oil-fired) steam boilerLive Chat2-110 t/h1.25-5.3 MPa
-
ZZ series gas-fired (oil-fired) power plant steam boilerLive Chat20-130 t/h3.82-5.4 MPa
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat

-
As the 2026 FIFA World Cup brings the United States, Mexico and Canada into the international spotlight, attention is once again turning to the cities, industries and communities across North America. Away from the stadiums, manufacturing plants, beverage production lines and automotive component facilities continue their daily operations, providing steady support for local economies. ZOZEN Boiler’s WNS Series Serving Industrial Projects in North America In these less visible parts of ...14 Jul 2026 -
At the production site of a pharmaceutical company in Shanghai, a ZOZEN gas-fired steam boiler commissioned in 2010 has been operating steadily for 16 years. For this established pharmaceutical company, founded in 1995, the steam system is closely related to production rhythm, process coordination, and on-site operation support. Whether the equipment can maintain stable operation over the long term directly affects the continuity of daily production. Time is a practical test, and the continuous ...07 Jul 2026 -
As the beer industry moves toward greener, more continuous, and more refined production, the steam system has become an important part of brewing operations. Recently, the cooperation case between ZOZEN Boiler and Yanjing Beer (Guilin Liquan) Co., Ltd. once again highlighted the essential role and system value of industrial boiler equipment in the food and beverage industry. Industrial Heat and Beer Brewing Are Closely Connected From a Drop of Beer, the Value of Stable Steam Becomes ClearYan...24 Jun 2026











