Defa Termini II Interior heater 1900WDescription Termini II 1900 is a compact and highly efficient interior heater. It is developed for medium sized to large vehicles and normal to severe winter temperatures. It has two output settings: 1150W and 1900W at 25C. A PTC heating element (PTC = Positive Temperature Coefficient) ensures that as the interior temperature reaches target levels, power output and consumption is reduced. When part of a full WarmUp system, Termini II 1900 can be