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industrial gas boiler
lpg gas boiler
gas burner boiler
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industrial gas boiler
lpg gas boiler
gas burner boiler
gas industrial boiler

Natural Gas/Biogas/Lpg Boiler

gas burner boiler | gas steam boiler | gas fired hot water boiler

WNS series gas-fired boiler is a three-pass wet-back boiler, which can generate steam or hot water for factory use. Fully automatic operation, safety and energy saving. Equipped with well-known burners, it is suitable for various liquid and gaseous fuels, such as lpg, natural gas or dual fuel.

Output: steam, hot water
Capacity: 0.1ton-40ton, 80-14000kw.
Styles: horizontal
Available Fuel: natural gas, biogas, LNG, LPG, dual fuel etc
Applied Industries: food, beverage, diary, feed mill, garment, textile, chemical, paper, packaged, refinery, chemical, laundry, hotel, greenhouse etc

Gas fired boiler is an environmentally friendly boiler. It has won most of the market with its advantages of low emission, long life and high degree of automation.

Yuanda Boiler fabricating fire tube oil gas boiler, vertical(small) oil gas boiler, oil gas water-tube package boiler:

fire tube gas boiler, water tube gas boiler, vertical gas oil boiler

Yuanda devoted to industrial boilers since 1956. With ASME CE EAC DOSH GOST CRN quality certificate, exported to all over the world.

WNS Fire Tube Gas Boiler

It adopts three-pass wet-back structure, large corugated furmace and thread smoke tube technology, 5-th inter-lock protection, equipped with intemational first-level brand burners, valves, instruments, advanced expansion welding technique. Independently developed high-matching PLC control system to realize muitiple linkages, protects the boiler long uselife & safety running.

Fuel: natural gas, lpg, diesel, heavy oil, dual fuel and exhaust gas.

natural gas lpg fired boiler


It can be used in a variety of industries such as food, beverage, milk, garment, pharmaceutical, building materials, chemicals, textile, paper, foam, feed mills, edible oils, rice mills, dairy products, food, wood processing, refineries, rubber, packaging, laundry, hotel, greenhouse...

Protective Function

• 5 Stage Interlock Protection. Water level protection, flame out protection, pressure protection, exhausted smoke over temperature protection, design with the 5th water level detector;

• Automatic operation of the burner ignition, flameout, big/small fire switch;

• Voltage and power supply abnormality protection function;

• Steam quality protection;

• Water quality protection (dosing device and TDS system optional)

• Leakage protection.

gas fired boiler, gas steam boiler, gas hot water boiler


High Security, Safe Operation;

①Anti-dry heating system with 5-th water level detect;
②Four stages pressure protection;
③Explosion-proof door with fire viewer;
④Remote monitoring system.

High Efficiency, Save Fuel & Running Cost;

①Large corrugated furnace, patent design three pass smoke tubes;
②Built-in steam separator, ensure high steam quality with wetness below 1%;
③Double 12mm thickness aluminum silicate insulation layer;
④Finned tube design economizer with aluminum silicate insulation, greatly reducing heat loss.

Long Using Life and Convenient for Maintenance

①Wet-back reverse flame chamber;
②Solid round steel tension rod design;
③Rapid solidification and high-strength refractory building materials;
④Double opening-door at front and back.

Packaged Boiler, Less Installation Work

Easy for transportation and installation, also could be pre-installed in the factory, customers only connect water, electricity, fuel at site

Vertical(small) Oil Gas Boiler

LHS LSS Small gas/diesel boiler, vertical boiler, gas/diesel steam generator and hot water generator.

Suitable for 0-2000kg, 0-1400kw, 0-150hp.

small gas oil boiler, gas oil boiler vertical

Our Service

Pre-sale Service:

1. Design一We help customer to choose the best boiler model according to the different requirements of different industries.
2. Drawing and files一Supply quality certificates, factory-inspect, fuel consumption calculation, cost analysis, foundation drawings, layout drawings, boiler room drawings nased on your needs, etc.
3. Technical Solution一Design completed boiler solution with installation materials for your company.
4. Competitive Price一As one boiler factory, we have lowest price and high quality.

After-sale Service:

1. Provide a full range of boiler and original spare parts.
2. Overseas engineers installation and commissioning service is available.
3. Training in site, to ensure safe operation.
4. 24 hours online, quick respond.
5. Free maintenance and repair for one year and lifetime service.

About Our Company

■ Founded in 1956, a quality supplier assessed, certified and inspected by SGS Group
■ CE ASME DOSH EAC GOST TUV BUV ISO high standard boiler certification
■ More than 17 years of export experience, gold medal supplier, guaranteed payment and delivery.
■ Integrating research&development production and sales
■ Support video/VR or third party factory inspection
■ Best seller in 108 countries, more than 100,000 customers

gas steam boiler, gas burner boiler factory

Quality Assurance

Steel element test→Steel rust cleaningWelding electrodes drying processAutomatic welding, argon arc welding, expansion welding etc. methodsNDT(Nondestructive Testing) including X-ray Test, Ultrasonic Test, Magnetic particle TestHydraulic pressure test.

FAQ of Gas Fired Boiler

1. How much gas does the boiler use per hour?

Take 1 ton natural gas boiler as an example, the gas consumption per hour is 70m³.

2. Worried about the installation?

①We have skid mounted gas boiler, free of installation; ②We can send engineers to install boiler.

3. Don't have enough space in our factory?

We have vertical gas boiler, small footprint.

4. Do you have agent here?

We have agents and partners in some countries, will check list for you.


gas steam boiler
gas hot water boiler
Model Capacity
steam temperature
Feed water temperature
Fuel consumption
Light diesel oil(kg/h) Natural gas(Nm3/h)
WNS 0.5 0.5 35 0.4 to 3.82mpa 130450 20/105 32.5 35.7
WNS 1 1 71 0.4 to 3.82mpa 130450 20/105 64.6 70.1
WNS1.5 1.5 120 0.4 to 3.82mpa 130450 20/105 96.8 105.2
WNS 2 2 150 0.4 to 3.82mpa 130450 20/105 129.3 140.3
WNS 3 3 200 0.4 to 3.82mpa 130450 20/105 192.9 212.1
WNS 4 4 300 0.4 to 3.82mpa 130450 20/105 258.2 283.4
WNS 5 5 350 0.4 to 3.82mpa 130450 20/105 323.5 354.7
WNS 6 6 425 0.4 to 3.82mpa 130450 20/105 388.6 424.2
WNS 8 8 550 0.4 to 3.82mpa 130450 20/105 514.6 566.3
WNS 10 10 700 0.4 to 3.82mpa 130450 20/105 641.7 707.8
WNS 12 12 850 0.4 to 3.82mpa 130450 20/105 768.9 849.3
WNS 15 15 1050 0.4 to 3.82mpa 130450 20/105 960.1 1061.7
WNS 20 20 1400 0.4 to 3.82mpa 130450 20/105 1276.2 1415.8
Note: Standard boiler parameter is for your reference, should follow the actual technical data according customer needs & engineer design.
Model Rated heating capacity
Rated working pressure
Output water temperature
Return water temperature
Fuel consumption
Light diesel oil(kg/h) Natural gas(Nm3/h)
WNS 0.35 0.35mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 31.6 36.6
WNS 0.7 0.7mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 60.4 69.3
WNS 1.4 1.4mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 122.8 146.1
WNS 2.1 2.1mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 192.3 227.1
WNS 2.8 2.8mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 246.1 286.5
WNS 4.2 4.2mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 367.1 412.6
WNS 5.6 5.6mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 490.2 543.7
WNS 7.0 7.0mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 593.6 660.7
WNS 10.5 10.5mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 936.5 998.8
WNS 14 14mw Atmospheric pressure/0.7/1.0/1.25/1.6 85~130 70/60 1200.8 1330.7
Note: for place limited, we didn't list all models, if you need other capacity, pressure, fuel, please send us inquiry directly, we will send you detailed parameter.

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