Generac 5630 - Cold Weather Kit For Liquid-Cooled Standby GeneratorsGenerac 5630 Cold Weather Kit For Liquid Cooled Standby Generators Cold Weather Kit for 2. 4L Engine 2. 4L 27kW, 36kW, 45kW and 60 kW Standby Generators The cold weather kit consists of a battery warmer that has thermostat built into the battery wrap as well as a replacement filter for the replacement of the mineral oil with the appropriate factory recommended synthetic. When temperatures fall below an acceptable level, the thermostat activates the