Did you know that the Great Chicago Fire of 1871 and the Great Boston Fire of 1872 spread mostly by embers hitting neighboring roofs? There is some serious fire testing happening in episode 1502 of Ask This Old House when Kevin O'Connor heads to Underwriters Laboratories in Chicago. | This Old House

1.2K views · 12 reactions | It’s a shocking fact: There’s a fatal house fire in America an average of once every three hours. Here are simple but important things you can do at home right now to protect yourself and your family. More tips from ABC7’s Operation Save a Life here: https://7ny.tv/40kmSxw | ABC7NY | Facebook