Brief： Horizontal/vertical Oil-fired Heat Transfer Fluid Boiler

undefined inner,middle and outer(or inner and outer)closely aligned round coils. Inner coils are radiation heating area and middle and outer coils serve the convection heating area with external surface of innundefinedexchange. Finally low-temperature fume exhausts outside through the chimney via the fume outlet of boiler.
The installation is very convenient and flexible, just need to place the boiler on the fou