Thermic Fluid Heater Vertical Four Pass has capacity ranging from 4, 00,000 kcal/ hr to 80, 00,000 kcal/ hr. The Fluid Heater has working temperature ranging from 300 °C to 350 ° C. The Fluid Heater requires wood, coal, agro waste, bio-mass as fuel. The Thermic Fluid Heater Vertical Four Pass has manual and fluidization bed combustion system.