管道和热水器
堆肥堆热水器热水浴缸
…石油、气候变化和经济转型”。By running water through a giant compost pile, it was brought from 7 °C to a blistering 62 °C. Not much more needs to be said that the video doesn't say. We love seeing stuff like this, if you come up with your own brilliant backyard inventions or hear of one, by all means ...