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Energy sustaining water heater

  • US 6,684,821 B2
  • Filed: 10/24/2001
  • Issued: 02/03/2004
  • Est. Priority Date: 10/24/2001
  • Status: Expired due to Term
First Claim
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1. A water heater comprising:

  • a tank for storing water;

    a combustion chamber in thermal communication with said tank for heating said water, said combustion chamber containing a pilot burner and at least one main burner;

    a flue containing a flue damper to control the passage of exhaust gases from said combustion chamber; and

    an electrical control circuit, said electrical control circuit including a thermo-voltaic device proximal to said pilot and said control circuit being connected to said flue damper;

    wherein said control circuit is capable of using thermal energy from said pilot to generate electrical power to operate said damper and to balance heat loss from the water in said water heater when said main burners are not fired.

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