Gather in a central room with an alternate heat source like a fireplace, but be sure to keep a screen around an open flame. And don’t close the fireplace damper while the ashes are still hot. In daytime, open drapes and blinds to let in any available sun to warm the space. Close them at night to minimize heat loss. If the indoor temperature drops below 55 degrees Fahrenheit, open faucets slightly so they constantly drip, thereby preventing pipes from freezing.