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Device for heating water and producing steam

  • US 9,254,059 B2
  • Filed: 05/18/2011
  • Issued: 02/09/2016
  • Est. Priority Date: 05/21/2010
  • Status: Active Grant
First Claim
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1. A device for heating water and producing steam comprising:

  • a first flow-through water heater, having a first water duct and a first heating member; and

    a second flow-through water heater, having a second water duct and a second heating member;

    wherein said first water heater and said second water heater are in thermal connection one to the other,wherein said first heating member and said second heating member are configured to selectively produce hot water and steam respectively, andwherein said first water heater and said second water heater comprise a mass of thermally conductive material through which heat is exchanged between the first water heater and the second water heater,the device further comprising;

    a connection between said first water duct of the first flow-through water heater and said second water duct of the second flow-through water heater; and

    a switching device for switching between said first water duct of the first flow-through water heater and said second water duct of the second flow-through water heater, said switching device being configured to alternatively;

    connect in series said first water duct and said second water duct to allow for a water flow from the first water duct to the second water duct, the water flow flowing from the first flow-through water heater to the second flow-through water heater, andbypass the second water duct of the second flow-through water heater to allow for a supply of hot water from the first water duct of the first flow-through water heater to a supply line,wherein the first and second flow-through heaters are resistive heaters.

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