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120-14000kw hot water boiler
gas oil fired hot water boiler
0.2mw-2.8mw hot water boiler
packaged automatic hot water boiler
120-14000kw hot water boiler
gas oil fired hot water boiler
0.2mw-2.8mw hot water boiler
packaged automatic hot water boiler

Oil / Gas Fired Hot Water Boiler

Boiler with oil/gas burner | Central heating boiler | Boiler for heating

WNS oil/gas hot water boiler is packaged 3-pass wet back fire tube boiler, for central heating or improve water temperature.This boilers is fully automatic, designed to operate on a wide range of liquid and gaseous fuels like heavy oil, light oil, gas, and dual fuel options.

Transfer medium: hot water
Thermal Capacity: 0.12-14 mw 120-14,000 kw/h
Styles: horizontal / vertical
Available Fuel: natural gas, lpg gas, diesel oil, heavy oil, dual fuel
Applied Industries: heating/drying/domestic hot water, such hotel, wood, greenhouse, food, beverage


  • YUANDA gas (oil fired) hot water boiler is a thermal energy equipment that provides hot water or central heating. Especially suitable for hotels, resort, farms, slaughthouses, hospitals, greenhouses and other factory production (such as tea factory, electroplating industry, wood factory, precast factory, oilfield, autoclave, concrete etc).

  • This hot water boiler thermal capacity is 30,0000Kcal~20Mkcal / 350kw ~21,000kw. Out water temperature is 50℃130℃, could adjusted by clients requirements.

  • gas oil boiler, hot water boiler, industrial hot water boiler

  • This WNS gas/oil boiler is the automatic hot water boiler. It has advantages: "first furnace tube pass" "second fire tube pass" "three fire tube pass", "fully wet back & reversal chamber", "large corrugated furnace" and "patented thread pipe" technology. It equipped with  famous valve groups, and independently developed high-matching PLC control system to realize muitiple linkages. Over pressure, over temperature, low water level, air ignition alarm interlock. The lock protection function ensure the equipment running 100% safety.

  • Yuanda Boiler provide clients with the support and expertise necessary to design, fabricate and install complete boiler system, from the fuel, boiler, and other accessories. Various industrial boiler design are suitable pressure for 4 to 38bar(50 to 500 PSI)

  • Types of Boilers We Offer:

  • hot water boiler related industrial boiler



Spirally Corrugated Furnace & Wet Back Structure

1. Bigger corrugated furnace design, increased 10% heating area, also avoid damaged by heat expansion; 2. Wet back stucture reduce the back tube sheet temperature and protect it from cracking


3-Pass Spiral Fire Tubes (smoke tube) Technology

Use the advanced technology which is our patent to design the spiral tubes, to enhance the boiler thermal power 10-15% higher than normal, and avoid the spiral tube from ash deposition and wearing


Double Layer 12cm Aluminum Silicate Insulation

We use double layer 12cm aluminum silicate insulation cotton, boiler surface temperature is not higher than 40 ℃, energy saving, also improve boiler efficiency


Economizer/Condensor Design, Energy Saving

Recycle exhausted smoke to heat feed water, reduce exhaust smoke temperature below 95 ℃, increase feed water temp then save fuel cost at least 6% per hour



From boiler solution, optimization to installation, 24 hours online, provide technical support and avoid risks for you


Based on user needs, we supply tailored service, boiler drawing&PID system, boiler room design, foundation drawings etc


Full-life After sale service. With our professional technical experts and service team, skilled technology provides customers with professional services


Our engineer on-site guidance installation and commissioning, ensure boiler running perfect, free training for boiler operator


According to the customer production requirements, provide professional boiler solutions, cost analysis, project investment budget, boiler drawing&installation and commissioning service


oil gas hot water boiler
Boiler model WNS0.35 WNS0.7 WNS1.4 WNS2.1 WNS2.8 WNS4.2 WNS5.6 WNS7.0 WNS10.5 WNS14
Rated thermal power(MW) 0.35
Rated work pressure(Mpa) atomosphere pressure or 0.7Mpa or 1.0Mpa or 1.25Mpa or 1.6Mpa
Output water temp.() 85/95/115/130
Return water temp.() 70
Thermal efficiency(%) >97
Nox emission(mg/m3) 120/80/30
Exhaust gas temp.() <60
Fuel type diesel oil/natural gas/heavy oil/Lpg/lng/city gas/dual fuel
Fuel consumption diesel oil  31.6 60.4 122.8 192.3 246.1 367.1 490.2 593.6 936.5 1200.8
natural gas 36.6 69.3 146.1 227.1 286.5 412.6 543.7 660.7 998.8 1330.7
Transporation weight(t) 2.65 4.66 6.53 7.3 8.1 15.1 18.2 25.6 29.1 47.8
Note: for place limited, we didnot list all models, if you need other capacity/pressure or fuel, please contact us directly, we will send you detailed parameter.

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