NATE Gas Heating Exam with Complete Solutions
NATE Gas Heating Exam with Complete Solutions Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% C: 60% Today, furnaces with AFUE ratings greater than _____ are available.
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- Uploaded on
- June 11, 2024
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- 20
- Written in
- 2023/2024
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- Exam (elaborations)
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- Questions & answers