YLW series coal-fired/biomass-fired thermal fluid heater
Thermal fluidProduct thermal capacity: | 1400-29000 KW |
Working pressure: | 0.8-1.0 MPA |
Outlet temperature: | 320 °C |
Available fuel: | Bituminous coal, anthracite, biomass particles |
Available industries: | Chemical,high temperature heating technology for fertilizer, melamine, alumina and so on |

This is a coal-fired horizontal thermal oil boiler (or hot oil boiler). Simply, I consist of radiant section, convection section, chain grate furnace, coal feeder., insulation lay, steel coat, instrument valves and so on.

1. Boiler Features
- High heat efficiency, unique structure, the heat efficiency can be more than 78%.
- Furnace radiation area adopts double square shaped coiler and on the top of boiler, we design the ceiling pipes, so that the heat load can be reduced on the surface of pipes and the thermal oil can work more safely.
- In the end of boiler, we design a heating area with staggered arrangement. That will enhance the heat transfer coefficient and decrease the ash deposit in the boiler.
- The unique design of furnace arch with our own patent can make the coal burn out fully to enhance the heat efficiency.
- The convection area is equipped with an all-direction soot blower. This will reduce the difficulty of cleaning ash and prolong the service time.
- High safety. When abnormal conditions happen, safety interlock system starts up tp protect the boiler system.
- Accurate temperature control. The oil temperature difference in the outlet can be control with ±3 ºC. If the boilers are equipped with frequency conversion technology, we an control it within ±1 ºC.
- The boiler can be equipped with a waste heat boiler in the rear, if users need hot water or steam from the heating system. That makes full use of the exhausted smoke to achieve energy-saving and environmental protection.

2. Our market in the world
Nowadays, we have exported our boilers to the following countries: India, Indonesia, Pakistan, Malaysia, Thailand, Laos, Vietnam, Bengal, Philippines, Taiwan China, Papua New Guine, France, Finland, Turkey, Serbia, Lithuania, Bulgaria, Russia, Mongolia, Venezuela, Chile, Colombia, Mauritius, South Africa, Ethiopia, Algeria, Nigeria, Tanzania, Oman, UAE, etc.
3. Total integration goes far beyond boilers
Efficiency and quality don't end with our boilers. ZOZEN complete integration produces the most efficient boiler solutions in the world. Completely designed, engineered, manufactured, integrated, and serviced by our team, our systems don't have a single outsourced component to jeopardize compatibility or performance. If you are looking for the best-quality boiler systems with the lowest emissions and highest efficiencies, you are looking for Zozen.
4. Boiler Specification
Model | Rated thermal power (KW) | Rated thermal power (x104kcal/h) | Design working temperature(≤ºC) | Rated working pressure(MPa) | Thermal efficiency(≥%) | System installation power(KW) |
YLW-1400M/AII | 1400 | 120 | 320 | 0.8 | 80 | 55 |
YLW-1800M/AII | 1800 | 160 | 320 | 0.8 | 80 | 63 |
YLW-2400M/AII | 2400 | 200 | 320 | 0.8 | 80 | 76 |
YLW-2800M/AII | 2800 | 240 | 300 | 0.8 | 80 | 85 |
YLW-3500M/AII | 3500 | 300 | 320 | 0.8 | 80 | 105 |
YLW-4200M/AII | 4200 | 360 | 320 | 0.8 | 80 | 125 |
YLW-4600M/AII | 6000 | 500 | 320 | 0.8 | 80 | 155 |
YLW-6000M/AII | 7000 | 600 | 320 | 1 | 80 | 170 |
YLW-7000M/AII | 8200 | 700 | 320 | 1 | 80 | 193 |
YLW-8200M/AII | 4600 | 400 | 320 | 1 | 80 | 150 |
YLW-9400M/AII | 9400 | 800 | 320 | 1 | 80 | 160 |
YLW-10500M/AII | 10500 | 900 | 320 | 1 | 80 | 160 |
YLW-12000M/AII | 12000 | 1000 | 320 | 1 | 80 | 260 |
YLW-14000M/AII | 14000 | 1200 | 320 | 1 | 80 | 320 |
YLW-16500M/AII | 16500 | 1400 | 320 | 1 | 80 | 380 |
YLW-18000M/AII | 18000 | 1600 | 320 | 1 | 80 | 450 |
YLW-21000M/AII | 21000 | 1800 | 320 | 1 | 81 | 520 |
YLW-23300M/AII | 23300 | 2000 | 320 | 1 | 81 | 600 |
YLW-26000M/AII | 26000 | 2200 | 320 | 1 | 81 | 700 |
YLW-29200M/AII | 29200 | 2500 | 320 | 1 | 81 | 825 |







Wuxi Zozen Boilers Co., Ltd., which was founded in 1988, is now one of the most influential boiler manufacturers in China with a manufacturing base covering hundreds of thousands of square meters. It ranks top in the industrial boiler sector in Asia in terms of the variety of its products, the level of automation in its manufacturing facility and the volume of its production.
Nowadays, ZOZEN's products have been exported to more than 100 countries and regions around the world and are widely used for application in urban central heating, heating for large residential areas, heating for large factories and mining enterprises,heating for the breeding industry and fruit and vegetable greenhouses, etc.

