Construction Features
Our thermal oil heaters are cylindrical in shape and heat the thermal fluid as it circulates through two concentric coils, where combustion of the liquid fuel occurs via a burner mounted on the front wall.
Between the two metal casings, a layer of high-density rock wool insulation maintains low external surface temperatures (30-40°C). This minimizes heat loss and prevents accidental contact burns.
The burner flame is directed into a combustion chamber carefully designed to match the flame’s geometry. Combustion gases travel at high speed around the coils, changing direction several times to enhance heat exchange before being expelled through the chimney at the outlet end of the unit.
Coil System
Each coil may consist of two, three, four, or more stages, depending on the model. Maintaining a rapid flow of thermal fluid through these coils is crucial to ensure efficient heat transfer and to prevent overheating or damage to the piping.