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HVAC Gas Heat Certification Exam (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade
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HVAC Gas Heat Certification Exam (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade QUESTION Duct wrap is used to insulate round metal ducts. What is the approximate R-value for "one inch" of this insulation Answer: R= 3.0 QUESTION A categor...
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