Life in Yakutia, a region in northeastern Russia, can be hard because of the brutal winters. In fact, it’s known as the coldest place on Earth.

And a woman who lives there named Maria Solko explained how people heat their houses there.

In the video, Solko breaks down how much the people in Yakutia have to pay for heat, how the homes there are insulated, and what are the ideal temperatures for the interior of the houses in the region.