Apartment buildings that can save more than 90 percent energy will soon be inhabited in Beijing's Jiaohuachang, Beijing Times reported. 

Three apartment buildings will become "passive homes" or energy-saving houses. These will not have conventional central heating systems, but its energy-saving technology will ensuer that indoor temperatures range between 18 to 22 degrees Celsius. A central ventilation system will be installed in every room for heat recovery. 

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An official at the Beijing Security Housing Investment Center told the newspaper that the passive homes will have 25-cm thick insulating layers, compared to a normal apartment's 8-centimeter later. Its thick covering will keep the heat inside during cold weather. 

A special heat storage device will retain the heat and use it to raise the temperature of cool air drawn into the system. 

It will also have cooling features that can blow cool air into room. This cooling system conusumes less power than airconditioning units in individual homes. 

A standard building's energy-saving rate in Beijing is 75 percent. 

Tagsenergy saving homes, china, Beijing apartment, Beijing goes green, passive homes in China