Patent ID: 6142106
Filing Date: 2000-11-07
Classification: F23D,F24H

Abstract:
A water heater comprising:a water container;a combustion chamber, adjacent said water container, having at least one inlet to admit air and extraneous fumes into said combustion chamber, said at least one inlet comprising a metal plate about 0.4 to 0.6 mm in thickness and through which pass a plurality of ports, the ports comprising a plurality of slots and holes, each slot having a quenching distance of about 0.6 mm, and each hole having a quenching distance in the range of about 0.7 to 0.8 mm and being capable of confining ignition and combustion of said extraneous fumes within said combustion chamber; anda burner associated with said combustion chamber and arranged to combust fuel to heat water in said container.