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Gas control method for a hybrid tankless water heater

  • US 9,062,895 B2
  • Filed: 06/25/2013
  • Issued: 06/23/2015
  • Est. Priority Date: 02/03/2009
  • Status: Active Grant
First Claim
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1. A method for reducing natural gas consumption in a hybrid tankless water heating system to avoid a gas over-demand situation, comprising the steps of:

  • providing a hybrid tankless water heating system comprising a burner having a gas consumption rate and at least one gas pressure sensor adapted to measure available gas pressure supplied to the burner,measuring the available gas pressure using the gas pressure sensor to detect a potential a gas over-demand situation by comparing the available gas pressure to a predetermined gas over-demand threshold, andreducing the gas consumption rate of the burner by predetermined levels when a potential gas over-demand situation is detected such that the gas consumption rate of the burner avoids the gas over-demand situation.

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