I received a home inspection report from a prospective buyer that indicates that "The damper for the fireplace gas starter is not locked open. Operating the gas starter with the damper locked open will...(all sorts of bad things)". My question is two fold:

1) Is having the damper locked open with a gas starter a code requirement? Why even have the damper at all if it needs to be locked open? Should I tell thie prospective buyer that this is ridiculous and if you are not capable of understanding the concept of a damper and its proper usage you should continue to live with your parents?

2) I assume since a inspector noted this as an issue, there are standard products to resolve this issue. Where do I find them? How much will this cost to fix (approximately $100, $200, etc.)? I will have to have a professional install it so I can not do it myself via the contract.