The tank preheating system maintains the operating temperature of the hydraulic oil during short stops or overnight shutdown. This means that the machine is ready to use more quickly when restarted. Tank preheating saves fuel, reduces wear and extends the service interval of the components installed in the hydraulic system. The reduction in emissions is also good for the environment. The tank preheater is suitable for preheating / maintaining the temperature of oil (hydraulic oil), diesel and water.