Demonstrated here is the YYW type thermal oil boiler. Let’s take a look at its structural design. This product begins operation with a burner. It creates energy by heating a coil via radiation and convection. Within the inner cylinder, the heat is transferred by radiation and in the outer cylinder by convection. After high-temperature combustion has been completed, flue gas will be discharged from the outlet of the boiler. Upon request, a waste heat recovery unit can be installed, which contributes to a decrease in the temperature of flue gas as well as an increase in the working efficiency of the boiler and is more cost effective!