Answer Key: Self-Test B-3.1

  1. a. Heats the air
  2. c. Unit heaters
  3. a. Fan
  4. c. Steel
  5. a. True
  6. c. Finned
  7. a. Louvre
  8. d. Vertical and horizontal
  9. c. Freestanding cast iron radiator
  10. d. PEX

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