It is told about the structures of residential buildings, allowing to reduce heat loss in the room. Modern construction heat, hydro and vapor insulating materials that can be used in the construction of individual houses and for additional insulation of apartments are considered. The option of heating garden houses is presented - from the use of solar energy to traditional stoves and fireplaces. The book uses a large number of illustrations. The 1st edition was published in 1992 for a wide range of readers.