We store a few cast iron pans in the oven, on the bottom rack. We leave the pans in there while cooking other things. Occasionally, I worry that this might affect oven performance, by interfering with radiation or convection in the oven. While investigating the subject today, I found several guides to cast iron guide that mention oven storage, but none of them answered that question. However, a few of them did advise against the practice for a different reason: cooking with empty cast iron might ruin the seasoning.
If you store cast iron in your oven, do you need to remove the empty pans before cooking? Will empty cast iron pans affect the oven performance? Will it harm the pans or ruin the seasoning?