Question 1 of 9
How would you calculate conductive heat loss through a wall when U-factor, area, and design ΔT are given?
Strong Interview Answer
Use Q = U × A × ΔT. Here: 0.08 × 240 × 38 = 729.6 Btu/h, so approximately 730 Btu/h.
What to Listen For
- Q = U × A × ΔT
- 729.6 Btu/h
- consistent units
- design temperature difference
Caution
The candidate should calculate the value, not just name Manual J or the formula.