Exam (elaborations)
NATE Gas Heating Exam/ 50 Questions & Answers/ .
- Course
- Institution
NATE Gas Heating Exam/ 50 Questions & Answers/ . Terms like: 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% - Answer: C: 78% Many pre-1992 fu...
[Show more]