Patent ID: 8890701

Claim:
A toxic gas detector, comprising: a) ductwork; b) an enclosure; c) a toxic gas sensor; d) an air sample fan; and e) a venturi; wherein said ductwork communicates with a potential toxic gas heating source of a forced hot air heating system; wherein said enclosure is attached directly to, and communicates with, said ductwork, and is disposed directly adjacent to said potential toxic gas heating source of said forced hot air heating system; wherein said toxic gas sensor is disposed in said enclosure, communicates with said ductwork, and is disposed directly adjacent to said potential toxic gas heating source of said forced hot air heating system so as to allow said toxic gas sensor to detect a toxic gas at said potential toxic gas heating source of said forced hot air heating system before the toxic gas has a chance to be distributed through said ductwork and infiltrate outlets of said ductwork, and when said toxic gas sensor detects the toxic gas at said potential toxic gas heating source of said forced hot air heating system, said toxic gas detector automatically shuts down said potential toxic gas heating source of said forced hot air heating system; wherein said air sample fan is disposed within said enclosure; wherein said air sample fan maximizes collection of the toxic gas from said ductwork for detection; wherein said venturi is disposed within said enclosure; wherein said venturi accelerates the toxic gas in said ductwork to said toxic gas sensor so as to provide accelerated detection of the toxic gas from said ductwork; and wherein said air sample fan is reversible between forward and reverse and vise versa for changing direction of the toxic gas from said ductwork.