go to www.travisproducts.com, click on product guide for electric. i.e. linear..check out install manual..best of luck

What is the ceiling height?

It's 10' in height

It all depends, how big is your room ? If your room is not that big and you put it across from the bed and would like to see it then you will want to place it higher on the wall so that you can see it while laying in bed. If your fireplace will be in a sitting area off to the side then you can mount it lower. There are so many options. Post some pictures of your room and that way we can tell you what we think will be a good height to place it. ( Pictures are just for inspiration )