Ecofriendly house. An Eco-house is an environmentally low-impact house designed and built using materials and technology that reduces its carbon footprint and lowers its energy needs. I think that eco-house must have solar panels, water-saving fixtures, natural and recycled building materials, natural linoleum floors, effective insulation. Home heating should occur due to geothermal energy and windows should be equipped with quality glasses. Outer walls and floors in the house should be dark that to absorb a lot of heat energy. The problem of waste water is solved with the help of individual cleaning installations. Eco house is an efficient solution to many environmental problems.