Study guides, Class notes & Summaries

B (heat exchanger) Correct Answer In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. A. Gas valve B. Heat exchanger C. Inducer fan D. Plenum box A (Gravity) Correct Answer What type of furnace moves warm air through the conditioned space without a fan? A. Gravity B. Horizontal C. Lowboy D. Upflow D (steel) Correct Answer Furnace heat exchangers generally are made of ______. A. Ceramic B. Copper C. Plastic D. Steel B ...

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% Correct Answer C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% Correct Answer C: 60% Today, furnaces with AFUE ratings greater than _____ are available. A: 85% B: 90% C: 100% D: 110% Correct Answer B: 90% A thermocoup...

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% Correct Answer C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% Correct Answer C: 60% Today, furnaces with AFUE ratings greater than _____ are available. A: 85% B: 90% C: 100% D: 110% Correct Answer B: 90% A thermocoup...

NATE GAS HEATING EXAM QUESTIONS WITH 100% CORRECT VERIFIED ANSWERS LATEST ALREADY GRADED A+

NATE Gas Heating Exam Questions with Correct Answers 2023

NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update 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% - correct answer C: 78% Many pre-1992 furnaces have efficiencies around . A: 10% B: 40% C: 60% D: 80% - correct answer C: 60% Today, furnaces with AFUE ratings greater than are available. A: 85% B: 90% C: 100% D: 110% - correct ...

NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update

NATE Gas Heating Exam Questions with Correct Answers 2023

NATE Gas Heating Exam Questions with Correct Answers 2023

NATE Gas Heating Exam Questions with Correct Answers 2023