Construction heating accounts for more than a quarter of the total energy consumption in Sweden, and 87% of total building energy consumption is for heating. Therefore, the first energy-efficient housing to keep warm. Sweden is located in northern Europe, long and cold in winter, short in summer and cool, the main energy consumption of all buildings is heating. Therefore, building energy efficiency has become the most important energy-saving emission reduction in Sweden. Energy efficient homes in Sweden use more dark paint and building materials, which can absorb as much solar energy as possible during the day. Building materials in the wall, the main use of hollow brick walls and composite wall technology to enable the building to absorb solar energy easily stored in the wall, will not be rapidly lost. At present, geothermal heat pumps have gradually entered Swedish homes, saving energy over electric boilers and fuel boilers, saving on average 30% to 40% of heating costs.