The Idle Free Heat System for work trucks from Phillips & Temro Industries operates communication equipment and interior and exterior lights and provides up to eight hours of interior cab and engine heat without truck idling. It is is CARB compliant, complies with all city, municipal and state idling laws, and it reduces CO2 emissions. The installation is quick and easy, taking only three hours and adding no additional weight to the truck. The Idle Free Heat System for work trucks is also designed to be simple to operate. It just takes a flip of a switch that’s installed in the cab.