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A gravity furnace is without what component?

A. Ductwork.
B. Blower motor.
C. Pilot light.
D. Heat exchanger.

User Martega
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1 Answer

6 votes

Final answer:

Option B). A gravity furnace lacks a blower motor because it relies on the natural movement of warm air rising and cool air sinking to circulate heat.

Step-by-step explanation:

A blower motor is absent from a gravity furnace. A gravity furnace, in contrast to contemporary forced-air heating systems, uses the natural flow of hot air rising and cool air sinking to distribute warmth throughout the house. A convection loop that distributes energy throughout the space allows for this circulation. The air rises and expands when heated by the furnace; it contracts and falls back to the floor when it cools at the ceiling and outside walls, creating space for more warm air to rise. It doesn't need a blower motor, which is a part of forced-air systems used to force air through the ductwork, because it runs on natural air movement instead of forced air.

User Pauly
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