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Question DetailsAsked on 11/19/2013

an old chimney and new furnace needs cleaning

I inherited my grandparents' home. Before they passed away they had the oil converted to a gas furnace and the chimney and furnace are both kicking out black soot through vents. Would I need to have them cleaned?

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2 Answers


Hello, this is Meranda with Angie's List. Our experts have told us over the years the importance of a clean chimney for safety and annual tuneups on furnaces for efficiency. You can read more about why chimney cleanings are important and why you should have your furance inspected regularly. I hope that helps!

Answered 6 years ago by Meranda


Since the furnace was oil now converted to gas we have a very corrosive situation. It is called hydro-sulfuric acid. This will eat up any masonry lining that existed prior to the conversion. I would have the flue thoroughly inspected by a licensed professional as it applies. The flue may need to be relined however do not use the product of aluminum. The aluminum product will prematurely deteriorate in the conditions that exist inside the chimney, i.e. sulphuric acid. The product of choice, should be a 316 alloy titanium-based stainless steel. Nonetheless, have the furnace chimney/venting system inspected. There is an eminent danger in the flue collapsing, causing products of combustion to be spilling into the home.


Answered 6 years ago by Guest_9017570

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