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Vent proving system

  • US 10,386,093 B2
  • Filed: 04/27/2018
  • Issued: 08/20/2019
  • Est. Priority Date: 11/16/2009
  • Status: Active Grant
First Claim
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1. A vent proving system for use with a heating appliance, the vent proving system comprising:

  • a vent;

    a sensor positioned within the vent, wherein the sensor is configured for sensing vent temperature within the vent;

    a draft hood coupled to the vent, wherein the sensor is positioned downstream of the draft hood; and

    a controller electrically connected to the sensor,wherein the controller determines if a back draft condition is present in the vent based on an output from the sensor when the sensor detects a vent temperature below a set point.

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