Water heater

Details Water heater Water heater

1986-04-29

1987-07-07

Bennet, Henry A.

Automatic temperature and humidity regulation

Closed fluid heaters

Flow controlled

122 20B, F22B 3500

Patent

active

046781161

ABSTRACT:
A compact continuous flow energy efficient gas fired water heater/boiler for use in residential, commercial and industrial buildings wherein cold water enters the heater and flows downward through an outer annulus and then rises up through an inner annulus around a central gas flue, and wherein combustion gas flows upward through the central flue and then downward through a set of heat-conductive tubes and finally upwardly through the middle annulus to the exit. Air flow blower provides draft. The burner is capable of burning gas at widely varying rates of gas flow and is regulated by a gas modulator valve approximately proportional to the rate of hot water usage and the force for the gas modulator is generated by an orifice type differential pressure generator in the inlet water pipe.

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