I need a heating element

When I was staying in a 4-star hotel in Malacca I wanted to boil some water but the element of the kettle was rusty. Most probably it had been in water for too long. Poor maintenance by the hotel had caused it to get rusty.

From this incident, I realised that I could do with a heating element of my own. With it, I can boil water without fearing contamination because I will keep the element dry after using it so that it won't rust. I just need to immerse the heating element in a cup fill with water and connect the element to electricity and soon my water will boil to serve my need.