Gem Webb, a resident of Southern Ontario, recently shared a DIY test with clay pots and tea lights to stay warm during severe winter. First, he lit four tea lights and placed them on a metal base. Then, Gem put a smaller pot on the lights in an inverted position to cover them. Later, he put the larger clay pot on top of the smaller flower pot. After four hours, the experiment showed positive results, and the room where Gem did the test was warm.