Practice Quiz

Green Plumbing

Category - Solar Hot Water

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Under optimum conditions, which of the following describes the rules of thumb for sizing a solar thermal system?
  1. 35 gallons per person per day - 1.0 ft2of collector surface per gallon - 3.0 gallons storage per ft2 of collector surface
  2. 30 gallons per person per day - 1.5 ft2of collector surface per gallon - 2.0 gallons storage per ft2 of collector surface
  3. 20 gallons per person per day - 1.0 ft2of collector surface per gallon - 1.5 gallons storage per ft2 of collector surface
  4. None of the above
Explanation
Answer: C - The rules of thumb for sizing a solar thermal system, under optimum conditions, include estimating 20 gallons per person per day, allowing 1.0 ft2 of collector surface per gallon, and designing for 1.5 gallons of storage per ft2 of collector surface.
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