High efficiency heater with condensate collection and humidification

摘要

A heater having a burner, a first heat exchanger associated with the burner, a second heat exchanger above the first heat exchanger and in fluid cooperation with the first heat exchanger and an ambient air intake blower above the second heat exchanger. The second heat exchanger has an angularly disposed finned section so that condensate within the second heat exchanger flows to a collection point and is collected in a trap. The trap includes an associated sensor to sense buildup of fluid in the trap with feedback to the heater controls. The heater may include a collection pan below the heat exchangers in fluid communication with the trap. In one aspect the collection pan may include a heating element to vaporize the fluid so that heated, humidified air is expelled through vents adjacent the base of the heater. In another aspect, the pan may include an ultrasonic vaporization element to vaporize fluid in the pan.