Which of the following statements is accurate?
1. Heat loss by infiltration is proportional to wind speed
2. Increasing the layers of glass in windows decreases losses
3. Proper ventilation requirements are determined by the air change method
4. Cold outer walls radiate this cold to interior objects
a) 1,2
b) 3,4
c) 1,2,3
d) 2,3,4
e) 1,2,3,4
Answer: E