Lochinvar Corporation

Dave C Baese

Mohamed Mehdi Doura

Robert W Wiseman

Benjamin Paul Putnam

Robert Wesley Wiseman

Benjamin P Putnam

Mohamed Medhi Doura

A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1.

Growing community of inventors

Brentwood, TN, United States of America

Dave C Baese