Introduction

Yuanda Fire Tube Boiler
Certified by ASME, CE, ISO, EAC, DOSH, TUV, BV, ensuring high quality and compliance with international standards.
✅ Fuel Oil Gas Fired Boiler
WNS series horizontal fire tube (smoke-tube) three pass boiler, powered by diesel, gas, lpg, heavy fuel oil, dual fuel, biogas.
Capacity 500kg-20000kg, 350kw-1 characteristics of "fan-shape three pass boiler" "wet-back boiler" "corrugated-furnace" "smoke change chamber" "spirally tube", greatly improve thermal efficiency up to 99%.
✅ Biomass Fire Tube Boiler
1. Wood/Biomass fire tube boiler, consist of two parts (biomass burner & fire tube boiler).
2. Specially, the new model biomass burner boiler could be converted as gas/diesel oil burner boiler easily. (showing in picture as follows)
2. Biomass burner is a type of biomass semi-gasification automatic control type burner, which uses wood chips, wood powder, sawdust and other organic biomass as fuel. Work automatically and higher combustion efficiency.
✅ Vertical Fire Tube Boiler
Small fire tube boiler in vertical structure, diesel/gas fired hot water steam boiler.
Capacity in 500kg 1000kg 1500kg 2000kg 350kw 700kw 1400kw
Yuanda Boiler

Hot Products
Industrial steam generator, steam boiler, hot water boiler, thermal oil heater boiler.
Various of Fuel Power Options
Electric, diesel, gas, lpg, heavy fuel oil, biogas, hydrogen, biomass, wood, coal, ricehusk, bagasse, PKS...
Our Company
Yuanda Boiler has 70 years of professional manufacturing experience. With 18 years of export history, sales service cover 132 countries and regions.
Our Certificates
Yuanda Boiler products meet international certification standards, including ISO, CE, ASME, EAC, DOSH, and CRN, ensuring safety, reliability, and quality.
Technical Parameter

Horizontal Oil Gas Boiler | Rated capacity(t/h) | Rated pressure (Mpa) | Rated temperature(℃) | feed temperature(℃) | Thermal efficiency(%) | Exhaust temperation(℃) | Fuel comsumption | max transportation weigh(t) | |
light diesel oil(kg/h) | natural gas(Nm³/h) | ||||||||
WNS0.5-1.0/1.25/1.6-YQ | 0.5 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | >98 | 60-75 | 32.5 | 35.7 | 3.5 |
WNS1-1.0/1.25/1.6-YQ | 1 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | >98 | 60-75 | 64.5 | 70.1 | 5.5 |
WNS2-1.0/1.25/1.6-YQ | 2 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | >98 | 60-75 | 129.3 | 140.3 | 8 |
WNS3-1.0/1.25/1.6-YQ | 3 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | >98 | 60-75 | 192.9 | 212.1 | 10.7 |
WNS4-1.0/1.25/1.6-YQ | 4 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | >98 | 60-75 | 258.2 | 283.4 | 11.6 |
WNS6-1.0/1.25/1.6-YQ | 6 | 1.0/1.25/1.6 | 184/194/204 | 20/104 | >98 | 60-75 | 388.6 | 424.2 | 17.5 |
WNS8-1.0/1.25/1.6/2.5-YQ | 8 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | >98 | 60-75 | 514.6 | 566.3 | 22.5 |
WNS10-1.0/1.25/1.6/2.5-YQ | 10 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | >98 | 60-75 | 641.7 | 707.8 | 26.8 |
WNS15-1.0/1.25/1.6/2.5-YQ | 15 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | >98 | 60-75 | 960.1 | 1061.7 | 35.2 |
WNS20-1.0/1.25/1.6/2.5-YQ | 20 | 1.0/1.25/1.6/2.5 | 184/194/204/226 | 20/104 | >98 | 60-75 | 1276.2 | 1415.8 | 45.5 |
Note: Parameter is for reference only, if any changes should follow the factory technical data. |
Oil Gas Boiler Equipment List

Oil Gas Boiler Features


100% Safety
We make the ultrasonic flaw detection and water pressure test for body body and pressurized part. Boiler equipped with double gauges & safety valves
High Automation Boiler
Intelligient control panel of boiler, it controls the size of the flame of the burner, water level, pressure, temperature and other signals inside the boiler
Energy-Saving Boiler
Three pass boiler, three pass can extend the flue gas distance, enhance heat transfer and increase thermal efficiency. Full heat insulation condenser design
Environmental Friendly
WNS series boiler, it could satisfy all countries' environment NOx emission limit standard. We are on the way to green environment protectionYUADNA PRODUCTS
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