How Often Chimney Needs Sweeping (And Why)
How Often Your Chimney Needs Sweeping This is a tougher question to answer than you’d think, but here’s the simple answer: Here at CSIA, we follow the guidelines of The National Fire Protection Association (NFPA) Standard 211, which says, “Chimneys, fireplaces, and vents shall be inspected at least once a year for soundness, freedom from […]