Can I burn wood in a gas fireplace that has a copper gas line?

I would like to burn wood in an existing fireplace that has a gas line installed. The chimney and fireplace are made of brick. The problem is that the gas line is made of copper, as opposed to a regular gas pipe, and i’m afraid the copper pipe will just burn through and i’ll have an explosion. I’m planning on putting wood on a rack, so there will be a 2–3 inch clearance from the rack to the gas valve.
Thanks