Practice Quiz

Green Plumbing

Category - Caring for Our Planet

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What is a key consideration in terms of the impact on the greenhouse effect in choosing a traditional natural gas or a traditional electric water heater?
  1. Carbon emissions in areas with primarily coal-fueled electricity may exceed those of natural gas
  2. Carbon emissions in areas with primarily hydroelectric-fueled electricity may be lower than those of natural gas
  3. Natural gas water heaters are more efficient and replenish their hot water more rapidly than electric water heaters
  4. All of the above
Explanation
Answer: D - All of the above are key considerations in the traditional gas vs. electric water heater decision. For environmentally-conscious contractors and consumers, the choice of gas vs. electric includes consideration of the primary sources of electricity generation, and their various contributions to greenhouse gases, to determine the most environmentally-friendly option.
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