AVR Automatic Voltage Regulator manufacturer / supplier in China, offering Forced Water Jack Heater Consists of Water Pump, Heating Element and Temperature Intelligent Control System 4500W 6000W 9000W 12000W, 24V03A-12V06A, Both 12VDC/ 24VDC Genset Diesel Generator Automatic Battery Charger Bac06A Dse9255 Dse9701 Bc2405 Dse9130 Dse9702 Bc1205 Bacm2420A 20A, Diesel Generator Engine Coolant Heater 500W 1000W 1500W 2000W 120VAC Water Jacket Heater Engine Block Heater 1000 Watt 2000 Watt 3000 Watt 5000 Watt 6000W and so on.