fireguard (n.)

• chimney
• fender
• fireplace
• fireside
• flue
• hearth
• hearthstone
• hob
• hub
• ingle
• inglenook
• lookout
• patrol
• patroller
• patrolman
• picket
• roundsman
• scout
• sentinel
• sentry
• spotter
• watch
• watcher
• watchman