"Designed to capture energy from heated coolant, HeatProbe is the safe and smart way of keeping tank fluids warm. Requiring no electricity to function HeatProbe is safe for use in explosive areas. Unlike electric heaters there is no risk of burning the product, or burning out an electric coil if the fluid level fluctuates. Whether it is stopping water from freezing in a tanker truck, preventing hydraulic system damage in sub zero conditions, or warming honey in the fall to lower its viscosity. HeatProbe immersion tank heaters have you covered".
https://thermex-systems.com/fl...