Zero heating buildings are buildings that don't need to use any energy like electricity or gas for heating. They're designed to stay warm in cold weather and cool in warm weather without using energy. They have special insulation and materials that help keep the heat out during the summer and keep the heat in during the winter. Windows and doors are made in a special way to help keep the temperature in the building just right without using energy. All the materials used in the building and the design can help the building stay the perfect temperature without needing any energy.