Patent ID: 8157560
Filing Date: 2012-04-17
Classification: F23B,F23L,F23N,F24H

Abstract:
1. A heater for heating a fluid comprising: a housing having: a fire box positioned in the hollow interior of the housing for burning a thermal source to heat fluid inside the hollow interior of the housing; a heat dump cover selectively blocking the heat dump opening and moveable between a closed position in which the heat dump opening is blocked to prevent fluid from exiting the interior through the heat dump opening and an open position in which the heat dump opening is unblocked to permit fluid to exit the interior through the heat dump opening; and a latch operatively connected to the heat dump cover, said latch including a thermal sensor positioned within the hollow interior of the housing upstream from the outlet for sensing temperature above the fire box, said latch permitting the heat dump cover to move toward its open position when a temperature inside the hollow interior sensed by the thermal sensor exceeds a preselected limit temperature, permitting fluid to exit the hollow interior of the housing through the heat dump opening to reduce temperature increase in the interior.