Gas(oil) fired Hot Water Boilers

OverView

Power: 0.7 – 14 MW
Working Pressure: 0.7 – 1.25 MPa
Applicable Fuels: Gaseous fuels such as natural gas, coke oven gas, biogas, etc.; Liquid fuels such as diesel oil, heavy oil, light oil, residual oil, etc.
Application Industries: Central heating, hospitals, hotels, schools, etc.

Product Introduction

The WNS Series Horizontal Internal Combustion Boiler is a shell-type three-pass wet-back oil/gas-fired boiler. The boiler operates automatically. After the fuel is atomized by the burner, the formed flame fills the full-wave furnace corrugated drum and transfers radiant heat through the drum wall—this constitutes the first pass. The high-temperature flue gas generated by combustion gathers in the re-burning chamber, turns to enter the second pass (the threaded smoke tube bundle area), and undergoes convective heat exchange. As the flue gas temperature gradually decreases, it reaches the front smoke box, where it turns again to enter the third pass (the plain tube bundle area). Subsequently, it flows through the rear smoke box into a condensing energy saver and chimney, before finally discharging into the atmosphere. This series of products features safe and reliable operation, high efficiency, energy-saving and environmental friendliness, easy maintenance, durability, and fully automatic intelligent control

Product Advantages

Expertise Team

Thermal heat combustion power gas turbines steam as coal. Boilers electricity fuel grid plant; engineering efficiency.

High-Quality Products

Thermal heat combustion power gas turbines steam as coal. Boilers electricity fuel grid plant; engineering efficiency.

Cost Savings

Thermal heat combustion power gas turbines steam as coal. Boilers electricity fuel grid plant; engineering efficiency.

Trustworthy

Thermal heat combustion power gas turbines steam as coal. Boilers electricity fuel grid plant; engineering efficiency.

Model parameters

Product Parameters
Product Name					Fuel (Gas) Hot Water Boiler – Atmospheric Pressure						Fuel (Gas) Hot Water Boiler – Pressure Bearing						Product Name
Product Model					CWNSN0.35	CWNSN0.7	CWNSN1.05	CWNSN1.4	CWNSN2.1	CWNSN2.8	WNS4.2	WNS5.6	WNS7.0	WNS8.4	WNS10.5	WNS14	Product Model
Output Parameters	Rated Thermal Power			MW	0.35	0.7	1.05	1.4	2.1	2.8	4.2	5.6	7	8.4	10.5	14	MW	Rated Thermal Power			Output Parameters
	Rated Outlet Water Pressure			MPa	Normal Pressure						1			1.25			MPa	Rated Outlet Water Pressure
	Rated Inlet Water Temperature			℃	70(50)						70						℃	Rated Inlet Water Temperature
	Rated Outlet Water Temperature			℃	95(60)						95(115)						℃	Rated Outlet Water Temperature
Design Parameters	Circulating Flow Rate			t/h	12(30)	24(60)	36(90)	48(120)	72(180)	96(240)	144(80)	192(107)	240(133)	288(160)	360(200)	480(267)	t/h	Circulating Flow Rate			Design Parameters
	Calculated Heat Exchange Area			m2	14.5	24.7	37.5	47.3	83.5	98.9	137.3	167.1	212.7	254.1	317.9	417.9	m2	Calculated Heat Exchange Area
	Smoke Exhaust Temperature			℃	150	150	161	165	159	154	155	152	156	153	154	148	℃	Smoke Exhaust Temperature
	Design Thermal Efficiency			%	92.5	92.6	92.7	92.8	92.8	93	93	93	93	93	93	93.1	%	Design Thermal Efficiency
Weight	Boiler Net Weight			t	4	5	5.8	7.4	8	10.8	13.7	18.8	22.3	27.3	36.6	45.7	t	Boiler Net Weight			Weight
	Boiler Full Water Weight			t	5	7.2	8	10.4	12.1	16.6	19.9	30.8	36.3	41.3	55.6	69.7	t	Boiler Full Water Weight
	Boiler Water Capacity			t	1	2.2	2.2	3	4.1	5.8	6.2	12	14	14	19	24	t	Boiler Water Capacity
Combustion	Combustion Mode			/	Slight Positive Pressure Chamber Combustion												/	Combustion Mode			Combustion
Combustion	Combustion Regulation Mode			/	Fully Automatic Two-stage Fire Regulation					Fully Automatic Proportional Regulation							/	Combustion Regulation Mode
	Applicable Fuel			/	Heavy Oil / Diesel / Natural Gas / LPG / City Gas												/	Applicable Fuel
Fuel Consumption	Heavy Oil			kg/h	33	66	98.9	131.7	197.5	262.8	394.2	525.6	657.1	788.5	985.6	1312.7	kg/h	Heavy Oil			Fuel Consumption
	Diesel			kg/h	31.9	63.7	95.5	127.2	190.8	253.8	380.7	507.6	634.5	761.4	951.8	1267.6	kg/h	Diesel
	Natural Gas			Nm³	38.7	77.4	115.9	154.4	231.6	308.2	462.3	615	770.5	924.6	1155.7	1539.3	Nm³	Natural Gas
	Liquefied Petroleum Gas (LPG)				12.7	25.4	38	50.7	76	101.1	151.7	202.2	252.8	303.4	379.2	505.1		Liquefied Petroleum Gas (LPG)
	City Gas				81.3	162.5	243.5	324.3	486.4	647.2	970.8	1294.4	1618	1941.6	2427	3232.5		City Gas
Air Pressure	Natural Gas			mm H2O	200-2000	400-2000	400-2000	700-2000	700-2000	1000-3000	1000-3000	1000-3000	1200-3000	1500-3000	1800-3000	1200-3000	mm H2O	Natural Gas			Air Pressure
	Liquefied Petroleum Gas (LPG)				300-2000	300-2000	300-2000	500-2000	500-2000	1000-3000	1000-3000	1000-3000	1200-3000	1500-3000	1800-3000	1200-3000		Liquefied Petroleum Gas (LPG)
	City Gas				300-2000	500-2000	600-2000	1000-2000	1200-2000	1500-3000	1800-3000	1500-3000	1200-3000	1500-3000	2500-3000	1500-3000		City Gas
Product Model					CWNSN0.35	CWNSN0.7	CWNSN1.05	CWNSN1.4	CWNSN2.1	CWNSN2.8	WNS4.2	WNS5.6	WNS7.0	WNS8.4	WNS10.5	WNS14	Product Model
Power Supply				/	380V-/50Hz												/	Power Supply
Power Consumption	Complete Machine	Oil-fired		KW	0.75	1.5	2.6	5.4	6.5	9	14.2	22.5	26	43.1	52.1	68	KW	Oil-fired		Complete Machine	Power Consumption
	Complete Machine	Gas-fired		KW	0.75	1.5	2.6	5.4	6.5	9	12	18.5	22	30	37	44	KW	Gas-fired		Complete Machine
	Single Machine	Preheater		KW										13.1	15.1	24	KW	Preheater		Single Machine
	Single Machine	Fan		KW	0.75	1.5	2.6	5.4	6.5	9	12	18.5	22	30	37	44	KW	Fan		Single Machine
Maximum Dimension	Transportation Size		L	mm	3200x	3283x	3751x	3750x	4594x	4880x	5610x	6196x	6648x	6900x	3700x	7928x	mm	L	Transportation Size		Maximum Dimension
			W		1370x	1605x	1735x	1935x	2145x	2395x	2550x	2850x	2940x	3090x	3525x	3630x		W
			H		1610	1860	1960	2115	2300	1515	2760	2994	3104	3110	3358	3765		H
	Transportation Size		L	mm	3430x	3813x	4291x	4236x	5308x	5960x	6950x	7654x	8106x	8258x	9178x	10560x	mm	L	Transportation Size
			W		1725x	2085x	2085x	2060x	2285x	2515x	2690x	3025x	3115x	3240x	3665x	4161x		W
			H		2235	2616	2716	2985	3240	3495	3849	4190	4300	4580	4770	5174		H
External Interface	Water Inlet		PN	MPa	1.6												MPa	PN	Water Inlet		External Interface
	Water Inlet		DN	mm	50(80）	80(100)	80(100)	100(150)	125(150)	125(200)	150	200	200	200	200	2*200	mm	DN	Water Inlet
	Water Outlet		PN	MPa	1.6												MPa	PN	Water Outlet
	Water Outlet		DN	mm	50(80）	80(100)	80(100)	100(150)	125(150)	125(200)	150	200	200	200	200	2*200	mm	DN	Water Outlet
	Oil Supply Port DN	Feed		mm	13	13	13	13	13	20	20	20	25	25	25	25	mm	Feed		Oil Supply Port DN
	Oil Supply Port DN	Return		mm	13	13	13	13	13	20	20	20	25	25	25	25	mm	Return		Oil Supply Port DN
	Air Supply Port	DN	DN	mm	Depends on Air Supply Pressure												mm	DN	Air Supply Port
	Manual Blowdown Port		PN	MPa	1.6												MPa	PN	Manual Blowdown Port
	Manual Blowdown Port		DN	mm	40	40	40	50	50	2*50	2*50	2*50	3*50	3*50	3*50	3*50	mm	DN	Manual Blowdown Port
	Safety Valve Interface		PN	MPa	1.6												MPa	PN	Safety Valve Interface
	Safety Valve Interface		DN	mm	40	50	80	80	2*80	2*80	2*80	2*100	2*100	2*100	2*100	2*150	mm	DN	Safety Valve Interface
	Safety Valve Vent		PN	mm	50	65	100	100	2*100	2*100	2*100	2*125	2*125	2*125	2*125	2*175	mm	PN	Safety Valve Vent
	Chimney Inner Diameter (Width*Length)			mm	273	273	273	309	300*600	400*500	450*640	450*850	450*850	400*1100	500*1100	500*1300	mm	Chimney Inner Diameter (Width*Length)
Product Model					CWNSN0.35	CWNSN0.7	CWNSN1.05	CWNSN1.4	CWNSN2.1	CWNSN2.8	WNS4.2	WNS5.6	WNS7.0	WNS8.4	WNS10.5	WNS14	Product Model
Product Name					Fuel (Gas) Hot Water Boiler – Atmospheric Pressure						Fuel (Gas) Hot Water Boiler – Pressure Bearing						Product Name

Note 1: The models in this table are conventional models, please contact us for other specifications and models.
Note 2: All the above values are calculated based on the standard of natural gas low heating value 8400kcal/Nm and diesel low heating value 10250kcal/kg.
Note 3: For the need of continuous improvement, our company reserves the right to modify the specifications and parameters. The above parameters are for reference only, please subject to the final drawings.
Note 4: Conventional configuration power supply conditions: 380V 50Hz three-phase five-wire, if there is any difference, please put forward in advance.

Get a free quote

Featured Cases

在此添加您的标题文本

Industry

在此添加您的标题文本

Industry

在此添加您的标题文本

Industry

在此添加您的标题文本

Industry

Company Introduction

UGJP Thermal Energy Solutions Co., Limited

UGJP Thermal Energy Solutions Co., Limited is an international sales and engineering solutions provider specializing in industrial heating equipment, including thermal oil heaters, boilers, valves, and integrated thermal systems.

Registered in Hong Kong, UGJP focuses on delivering reliable and cost-effective thermal energy solutions to global markets, with strong emphasis on Central Asia, the Middle East, and other emerging industrial regions.

Our core product — thermal oil heater (thermal oil boiler) — is widely used in asphalt mixing plants, chemical processing, textile production, wood drying, and various industrial heating applications. We provide customized solutions with capacities ranging from 100kW to 10500kW, supporting multiple fuel types such as natural gas, diesel, and heavy oil.

We cooperate with qualified manufacturing partners and integrate high-quality components, including internationally recognized burner brands such as Riello, to ensure stable performance, high efficiency, and long service life.

Our Strengths:

Fast quotation & technical proposal within 12 hours
Project-oriented customization and system integration
Export experience in Kazakhstan and Central Asia
Skid-mounted / containerized solutions for easy installation
Professional communication in English and Russian

UGJP is committed to helping industrial clients achieve stable operation, improve energy efficiency, and optimize long-term heating performance.

Company Introduction

Still have more questions?

You can consult online or call directly.

+86 135 2037 5369

Ugjp Boiler Consulting Hotline

01 Fill in the requirements

02 Telephone Connection

03 Solution Customization

We will contact you as soon as possible (your information will be strictly protected from leakage, please fill in the form with confidence).