An anode rod with a stainless steel core is installed in the water heater`s tank to shield it from corrosive substances.The thick rolled steel tank of the Havells Troica 15 L Water Heater has Feroglas technology, which makes it resistant to corrosion and efficient even in situations with hard water, extending its lifespan.This water heater has high-density, CFC-free PUF insulation to prevent heat loss from radiating out. Additionally, it performs more energy-efficiently because it uses less electricity.