... 4 degree. 2, ISO 9001:2008 standard. 2500W Diesel Engine Preheater 1,IntroductionWhen the temperature of use ... ·Electric intension: 1500V/min ·Electric power: 1500W,2000W,2500W,3000W3,Installation and usage of diesel engie preheater(1), Pipes ... .g. engine controller, water preheater, automatic voltage regulator, generator synchronizer, genset controller, power factor regulator, fuel solenoid, charger ...