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2024 CSIA Test | 135 Questions with 100% Verified Correct Answers | Latest Update
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2024 CSIA Test | 135 Questions with 100% Verified Correct Answers | Latest Update When a round flue is used for the lining of a fireplace chimney the proper fireplace opening to flue size ratio should be - Correct Answers 12:1 When unlined the smoke chamber walls shall be what thickness - Corre...
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