Abstract: An electric resistance radiant furnace is disclosed. Solid ceramic panel emitters having electric resistance wires embedded therein produce heat. A blower receives air from a return duct. Metallic screens are located between the panel emitters. A thermostat is connected to the wires and the blower. Heat is produced by each panel emitter. Part of the heat produced is radiated from the ceramic body to the metallic screens. Air flows in a parallel manner between the panel emitters and along the metallic-screens. The thermostat heat buildup by turning on the panel emitters controlling the blower. A short cycle air pass conduit accepts a portion of heated air from between the multiple panel emitters and to convey the portion of heated air to the return duct, such that the portion of heated air is mixed with return air, and a temperature of the return air provided to the blower is elevated.
Abstract: An electric resistance radiant furnace is disclosed. Solid ceramic panel emitters having electric resistance wires embedded therein produce heat. A blower receives air from a return duct. Metallic screens are located between the panel emitters. A thermostat is connected to the wires and the blower. Heat is produced by each panel emitter. Part of the heat produced is radiated from the ceramic body to the metallic screens. Air flows in a parallel manner between the panel emitters and along the metallic-screens. The thermostat heat buildup by turning on the panel emitters controlling the blower. A short cycle air pass conduit accepts a portion of heated air from between the multiple panel emitters and to convey the portion of heated air to the return duct, such that the portion of heated air is mixed with return air, and a temperature of the return air provided to the blower is elevated.
Abstract: An electric resistance radiant furnace that includes multiple panel emitters and at least one layer of metallic screen located between the panel emitters. In some embodiments, the panel emitters each include a ceramic body with an electric resistance wire embedded therein. Furnaces can be for heating an occupied space within a building and can also include a blower and controls and heat produced by electricity passing through the wire can be conducted through the ceramic body of each panel emitter and at least part of the heat can be radiated from the ceramic body to the metallic screen and then be transferred to air blown by the blower between the panel emitters and along the metallic screen. Concave or convex surfaces of curved layers of metallic screen can face opposite directions, can face the panel emitters, or both.