Answers

In all honesty, hire a professional electrician. They will know how to install the right equipment to be sure your fan remains where it belongs and is safely wired. Good luck!

First of all, will the electrical box be able to support the new fan? A paddle fan takes a special box rated for the extra weight. You can get one for an "old work" set-up and use the same ceiling cut-out. It's a little tricky getting the old box out, especially if there are a lot of wires coming into it.