Patent ID: 6250133
Filing Date: 2001-06-26
Classification: G01N,Y02A

Abstract:
A method for detecting venting of a combustion appliance within an improper space, comprising the steps of:providing a combustion appliance;operating the appliance in a manner to generate products of combustion, including carbon dioxide, and to generate heated air;providing a space into which venting of the products of combustion is improper;directing the products of combustion to a flue away from the improper space;directing the heated air from said combustion appliance to a duct connecting to said improper space;providing a carbon dioxide detector within the improper space;establishing a preselected criterion for carbon dioxide within the improper space that is indicative of venting of products of combustion into the improper space;operating the carbon dioxide detector in a manner to determine whether said preselected criterion for venting within the improper space is exceeded; andgenerating an alarm signal in response to detecting that said preselected criterion for venting within the improper space is exceeded.