Well Im a market guy that has never done in floor heating. I have seen some systems but never installed one. First question I have is if there is some threads I could find that you guys know of that I can read up on.

Next is the question of the best floor to build.
Wood subfloor? Concrete skim coat? I am planing on carpeting the basement as well.

Is there any rules of thumb for typical zone sizing? such as how long of a loop is recomended (length of pipe for the size). Best pipe to use? what info do I need to collect in order to size my pumps and boiler?

thanks for the info you guys can pass along. Just starting to look into this all and I got nothing but time, wont be finishing the basement for most likely a year.