パッシブソーラーハウス

noun

passive solar house

A house designed to use solar energy for heating and cooling without mechanical systems, relying on building orientation, insulation, and thermal mass.

• パッシブソーラーハウスは、冬ふゆでも暖だん房ぼう費ひがほとんどかからない。

  A passive solar house requires almost no heating costs even in winter.