Bradford White Corporation

Bruce Hill

Wade W Bernreuter

Matt Polhemus

Wade Bernreuter

Aspects of the invention relate to water heaters including a water storage tank having a top wall, a bottom wall, and a side wall extending between the top wall and the bottom wall; a combustion chamber extending below the bottom wall of the water storage tank and a heat exchanger configured to receive combustion gases and to transfer heat to water in the water storage tank. The heat exchanger includes a first pass flue extending through the water storage tank and a plurality of second pass flues coupled to receive combustion gases from the first pass flue. The second pass flues extending through the water storage tank and having a straight top portion, a curved bottom portion, and a longitudinal axis residing in a plane. The curved bottom portion of the second pass flues exits the water storage tank through at least one aperture defined in the side wall of the water storage tank.

High-efficiency condensing water heater

A water heater system, including a water storage tank, an electrical heating element, a power switch, and a controller. The controller is configured to store a number of heating cycles completed to heat water in the tank. When electric power is applied to the water heater system, the controller controls the power switch to turn OFF power to the electrical heating element in response to the number of heating cycles being less than a threshold number of heating cycles, and controls a user output interface to output the indicator indicating that the controller is inhibiting operation of the electrical heating element, and control the power switch to turn ON power to the electrical heating element in response to receiving user input through a user input interface requesting power to be applied to the electrical heating element, and a sensed temperature of the tank being less than a setpoint temperature.

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Middleville, MI, United States of America

Bruce Hill