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Valve controller for hot water heating system

  • US 5,294,051 A
  • Filed: 06/25/1992
  • Issued: 03/15/1994
  • Est. Priority Date: 04/26/1991
  • Status: Expired due to Term
First Claim
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1. A valve controller for a hot water heating system having water heating means, water circulating means, and heater means by operating a water control valve between an open and a closed position, said valve controller comprising:

  • flow timer means for variably establishing flow periodicity between a minimum flow time and a maximum flow time;

    base cycle timer means for variably establishing base cycle periodicity between a minimum base time and a maximum base time; and

    ,selector means responsive to heat requirement for selecting flow time and base cycle time.

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