I agree with Doug, unless you are experienced in glass replacement, let a professional do it. Definitely check with the manufacturer to see about the warranty unless you are passed your 10 year mark. ... read more
Interior chimneys are at least 4" larger in all four directions than the flue they contain. A chimney containing a 12"x12" clay flue liner must be at least 20" by 20". Combustible materials must be ke ... read more