Related Clues:

• Entrance for Santa
• Stove vent
• Decomposed fuel outlet
• Smoky, hot passage
• Fuel designed that deals with smoke problem
• Hot-air duct
• Part of a chimney
• Passage for exhaust gases
• Something a chimney sweep sweeps
• Smoke conduit
• Harmful gas outlet
• Air passage of a sort
• Virus close to waste pipe
• Fill up, oddly, in front of village's last outlet
• Sooty passageway