Wall heater with improved heat exchanger
AssigneeEmpire Comfort Systems, Inc.
InventorsLloyd R. Maschhoff, Thomas D. Vaughn
Life of this patent
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Abstract
A forced air, wall heater includes a heat exchanger which has a plurality of tubes. Each of the tubes include substantially parallel aligned runs and at least one return section between adjacent runs. The return section is aligned generally perpendicular with each of the plurality of runs. The heater also includes a blower positioned for blowing air directly toward the return section to maximize the mass flow rate of air over the return section. At least two of the runs are offset both laterally and in the direction of air flow with respect to each other. The ordering of tubes differs in at least two positions within the exchanger.
Claims17
A forced air, wall heater comprising a heat exchanger, said heat exchanger including a plurality of tubes with each of said tubes having a plurality of substantially parallel runs and at least one return section between adjacent runs, said return section being generally perpendicular to each of the plurality of runs, and a blower positioned for blowing air directly toward said return section to thereby maximize the mass flow rate of air over said return section.
A forced air, wall heater comprising a heat exchanger, said heat exchanger including a plurality of serpentine tubes, each of said tubes having a plurality of longitudinally extending runs aligned generally perpendicular with a direction of air flow through the exchanger, at least two of said runs of each of said tubes being offset both laterally and in the direction of air flow with respect to each other, and wherein said tubes are nested such that runs in each of said tubes lie on opposite sides of a common plane extending in a direction of air flow.
A forced air, wall heater comprising a heat exchanger, said heat exchanger including a plurality of tubes, each of said tubes having a plurality of substantially parallel runs, said substantially parallel runs being substantially horizontally aligned in at least two positions along the heat exchanger, and wherein the ordering of tubes differs in the at least two of said positions.
Dependencies are inferred from the claim text.