How Solar Water Heaters Work

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How FIPEL Bulbs Work

How FIPEL Bulbs Work

FIPEL bulbs last a long time and are energy-efficient. Learn about the new FIPEL bulb technology at HowStuffWorks.

Related HowStuffWorks Articles


  • Bainbridge, David. "Build a Solar Water Heater: An Integral Passive Solar Water Heater." Mother Earth News. January/February 1984.
  • Dulley, James. 'Breadbox' Heater Saves Dough. Chicago Sun-Times. May 28, 1985.
  • Olsen, Ken. "Solar Hot Water Heater: A Primer." Arizona Solar.
  • Patterson, John. "Solar Hot Water Basics." Home Power Magazine.
  • Solar Hot Water. U.S. Department of Energy.
  • Solar Water Heaters. Energy Savers.
  • Solar Water Heaters. ToolBase Services.