![What is the red and other cable for? I'm trying to install a fan on a close outlet on the ceiling. It was blocked off with a metal piece. When I pulled What is the red and other cable for? I'm trying to install a fan on a close outlet on the ceiling. It was blocked off with a metal piece. When I pulled](https://preview.redd.it/what-is-the-red-and-other-cable-for-im-trying-to-install-a-v0-p7znl0pfkqq81.jpg?auto=webp&s=319649b3c4200beeeebb30779807811175ec01cd)
What is the red and other cable for? I'm trying to install a fan on a close outlet on the ceiling. It was blocked off with a metal piece. When I pulled
![lighting - How can I tell if a ceiling box will support a real light fixture? - Home Improvement Stack Exchange lighting - How can I tell if a ceiling box will support a real light fixture? - Home Improvement Stack Exchange](https://i.stack.imgur.com/yp6Zrl.jpg)
lighting - How can I tell if a ceiling box will support a real light fixture? - Home Improvement Stack Exchange
![I'm certain the wires are loose in this box on my boiler, if it's propped up the boiler fires. Is it simple to unscrew to check after switching the power off? : I'm certain the wires are loose in this box on my boiler, if it's propped up the boiler fires. Is it simple to unscrew to check after switching the power off? :](https://preview.redd.it/t44h0hhr0ur91.jpg?auto=webp&s=8c311bb903ba89a5d204b627244b715dbf2dc4ad)