There are these wonderful inventions called automatic electric kettles, you should look into them. They seem to be commonplace in Europe, not so much in the US.

There are these wonderful inventions called automatic electric kettles, you should look into them. They seem to be commonplace in Europe, not so much in the US. But seriously, all it takes is a bimetallic strip to turn the kettle off when it reaches the desired temperature. Eliza ran in 16KB of RAM. The logic flow is easy, all you need is a sufficiently large dictionary.