There's a lot of products available to regulate the temperature of 15 gallon barrels. Each is designed with the same purpose in mind: to protect your products from viscosity and freezing. Powerblanket's 15 gallon drum heater is the most effective heater on the market. Rather than concentrating the heat in one spot like a band heater, the BH15-RR wraps around the entire drum - heating and insulating at the same time. And if Green products are important to you, the BH15-RR is equipped with GreenHeat Technology; which means it's on of the most energy efficient heaters available.
