It wasn’t always smooth sailing for Ashfield inventor Tom Leue. When making his own brand of biodiesel, an alternative fuel made from plant matter, he accidentally set fire to his workshop and burned it to the ground (hear about the fireball that ensued at minute 15).
Still, his commitment to selling biodiesel (made by other people) has lasted 19 years. Now Leue has come up with an invention that will allow users to heat their homes using unfiltered used vegetable oil — the same material used in fryolators and other restaurant settings. He is selling it through his business Yellow Heat. The system is many times cleaner than petroleum-based systems, and Leue sees it as his small contribution to fighting against climate change.