Hi and welcome to LE!
There's no such thing as a "stupid" question, except the one not asked, that is!
My Hot Head, which I use with a Creation Station, is about 2 1/2' from the back wall of my garage. As you may be able to see in these photos, I used to have a nice big 18" x 18" (travertine) tile that I just leaned up against my bench and the wall sort of as a heat-barrier back splash.
I've since drilled a hole in it and hung on the wall just behind where the radiant torch heat would probably make the wall a little toasty while I'm pulling a murrini I've been working on for 2-3 hours!
Never had a problem:
Then:
Hope this helps!