Electric heat pump water heaters are more than __________ as efficient as electric resistance water heaters.
A) two times
B) three times
C) four times
D) five times
Correct Answer:
Verified
Q1: LED lamps are not as energy efficient
Q2: Energy efficiency is one of the most
Q3: A _ can be set to lower
Q4: One of the best choices for energy-efficient
Q5: Electric water heaters supply domestic hot water
Q7: One way to eliminate lights being left
Q8: Green building is the process of designing
Q9: Fan power is measured in _.
A) foot
Q10: There are three features of exhaust fans
Q11: Without mechanical ventilation, the _ level inside
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