Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 14 - Heat - Questions: 14

Answer

Furnaces utilize air convection to heat a building. If the return vent was blocked, it would be ineffective.

Work Step by Step

Hot-air furnaces rely on air convection. If the return flow were to be blocked, this would interrupt the circulating convective currents. Heating would be less efficient, and furthermore, there likely would be hot and cold spots throughout the house.
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