GelStart Mobile Heat Wrap SystemThaw Out Frozen Fuel Filters and MoreThe GelStart wrap system is a portable and efficient heating system, designed to quickly thaw out frozen diesel fuel filters. Whether freezing temperatures have your fleet at a standstill or your rig stranded on the side of the highway, GelStart can thaw out your equipment quickly -- saving you from hours of lost time and income.Forgot to add anti-gel additive to your fuel tanks or plug in your block heater? With our insulating temperature resistant heat wrap system, we'll have you up and running in no time.