Name the tiny radiator that uses hot coolant from the engine to warm the vehicle's interior.
Answer Heater core
The heater core is a compact radiator that heats the vehicle's interior using engine coolant. The pipes of the cooling system move liquid coolant through the heater core, engine, and big radiator located below the vehicle's grille.
Asked by Vasilii Kulev · Last updated 3 years ago · 9.1K views · SOURCE