What is an eco-house? (1) house Using (2) as efficiently as possible What does the eco-house look like? Outside Built of (3) from Sweden with reclaimed wood Roof (4) panels provide warm water for underfloor heating in winter. How was the eco-house built? They bought an old (5) (6) it down, found an experienced (7) , spent 8 months (8) it, and used local builders and local(9) . Advantage of the eco-house Cutting down heating bills by (10)