Can you use your Weber grill as a fire pit?

Yes. Provided: the weber is not part of a grilling unit with a plastic or metal frame. If you have a regular old weber tall or short unit (the kettle you'd grill on and little else) you will be fine. Make sure to remove the grilling grates and have a hose or bucket of water handy just in case... Like I would with any fire pit. Don't put the kettle on the ground unless you have rocks or pavers to place the kettle on. (Some people may want to remove the grilling kettle from its legs or will want to just use the grilling kettle as is. While ok, rember a wood fire is harder to control temperature when it is used as a campfire. Plus there will be cinders and sparks).