In applications where tubular heaters are exposed to forced convection, placing fins around tubular heaters increases their surface area and thus improves their heat transferring capacity. Due to the shortened length of the heating element, the heat loss of the tubular heater is reduced, and the utility model has the advantages of rapid temperature rise, uniform heat generation, good heat dissipation performance, high thermal efficiency, long service life, small volume of the heating device and low cost under the same power condition. According to user requirements, a reasonable design is made by Jaye industry for easy installation.