YGL Vertical Biomass Heat Transfer Oil Furnace

YGL vertical biomass heat transfer oil furnace with active movable grate type. Flue gas flows from furnace door through inner coil, then between inner and outer coils forming second return, finally through rear flue box to chimney. Safety interlock protections for overtemperature and overpressure. Two-part assembly: upper boiler body and lower combustion chamber base.