Plumbing Questions? Ask a Plumber for Answers ASAP
Good morning, and welcome to the Technical section in JustAnswer. My name is ***** ***** I will help you today. There's no time pressure on this topic - it will stay open for many days, and you can reply at any time. I will be away from my desk sometimes, but will respond as soon as I can.When you change radiator width by such a large amount you have only three choices:1. Modify the pipe(s) below floor level;2. Modify the pipe(s) above floor level;3. Chase the pipe(s) into the wall.
Regarding the shower, there's potentially a lot of choice depending on what kind of system you have. You would need to start a new question for that topic. You can nominate me to answer it if you want to continue from this point.