help with fireplace/chimney vents
This may be something that has been discussed before but I'm not familiar with the terminology so I haven't been able to find information. Our fireplace has 4 vents around it (see pic - holes stuffed with insulation). My question is what these holes are called and what exactly they are for. We're also trying to figure out how to prevent drafts from coming in (without having them stuffed with insulation). We haven't used the fireplace yet but we'd like to (which would require removing the insulation). Any help would be appreciated.