I am getting ready to remodel my bathroom and have a few questions. I have baseboard convection heating units that are heated through my boiler. I would like to pull out the linoleum that is currently in there and put in marble tiles. This is going to change the spacing between the floor and the bottom of the convection units. There is a little bit of play in one of the pipes coming from the boiler, but the other pipe is solid and not moving at all. A contractor told me that space is required to stay the same. Is this true? It would change by half an inch at the most. If I did want to break into the system and cap off the pipe and remove the baseboard unit, is this something I can do myself or do I have to hire a professional? What are my options. Thank you.